SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q

(Mark One)

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2003 or
[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
For the transition period from ________ to ________

Commission file No. 1-7259

Southwest Airlines Co.
(Exact name of registrant as specified in its charter)

                 TEXAS                             74-1563240
     (State or other jurisdiction of             (IRS Employer
      incorporation or organization)           Identification No.)

      P.O. Box 36611, Dallas, Texas                75235-1611
(Address of principal executive offices)           (Zip Code)

Registrant's telephone number, including area code: (214) 792-4000

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [ ]

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act.) Yes [X] No [ ]

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date.

Number of shares of Common Stock outstanding as of the close of business on July 18, 2003:

782,931,936


SOUTHWEST AIRLINES CO.
FORM 10-Q

Part I - FINANCIAL INFORMATION

Item 1. Financial Statements

                             Southwest Airlines Co.
                      Condensed Consolidated Balance Sheet
                                 (in millions)
                                  (unaudited)

                                             June 30, 2003   December 31, 2002
ASSETS
Current assets:
  Cash and cash equivalents                         $2,204            $1,815
  Accounts and other receivables                       128               175
  Inventories of parts and supplies, at cost            87                86
  Fuel hedge contracts                                 111               113
  Prepaid expenses and other current assets             51                43
    Total current assets                             2,581             2,232

Property and equipment, at cost:
  Flight equipment                                   8,211             8,025
  Ground property and equipment                      1,075             1,042
  Deposits on flight equipment purchase contracts      665               389
                                                     9,951             9,456
  Less allowance for depreciation and amortization   3,001             2,810
                                                     6,950             6,646
Other assets                                           107                76
                                                    $9,638            $8,954

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable                                    $341              $362
  Accrued liabilities                                  599               529
  Air traffic liability                                575               412
  Income taxes payable                                  11                 -
  Current maturities of long-term debt                 132               131
    Total current liabilities                        1,658             1,434

Long-term debt less current maturities               1,539             1,553
Deferred income taxes                                1,388             1,227
Deferred gains from sale and leaseback of aircraft     176               184
Other deferred liabilities                             140               134
Stockholders' equity:
  Common stock                                         782               777
  Capital in excess of par value                       163               136
  Retained earnings                                  3,718             3,455
  Accumulated other comprehensive income                74                54
    Total stockholders' equity                       4,737             4,422
                                                    $9,638            $8,954
<F1>
See accompanying notes.


                                  Southwest Airlines Co.
                        Condensed Consolidated Statement of Income
                         (in millions, except per share amounts)
                                       (unaudited)

                                  Three months ended        Six months ended
                                       June 30,                June 30,
                                    2003     2002            2003     2002
OPERATING REVENUES:
  Passenger                       $1,465   $1,425          $2,771   $2,640
  Freight                             25       22              47       43
  Other                               25       26              48       47
    Total operating revenues       1,515    1,473           2,866    2,730
OPERATING EXPENSES:
  Salaries, wages, and benefits      587      501           1,103      963
  Fuel and oil                       194      189             402      359
  Maintenance materials and
  repairs                            104      101             210      198
  Agency commissions                  13       15              25       29
  Aircraft rentals                    46       47              91       94
  Landing fees and other rentals      91       88             181      171
  Depreciation                        95       86             188      171
  Other operating expenses           245      257             480      507
    Total operating expenses       1,375    1,284           2,680    2,492

OPERATING INCOME                     140      189             186      238

OTHER EXPENSES (INCOME):
  Interest expense                    23       27              49       53
  Capitalized interest                (8)      (5)            (15)      (9)
  Interest income                     (7)      (9)            (12)     (19)
  Other (gains) losses, net         (265)       7            (272)       9
   Total other expenses (income)    (257)      20            (250)      34

INCOME BEFORE INCOME TAXES           397      169             436      204
PROVISION FOR INCOME TAXES           151       67             166       81

NET INCOME                          $246     $102            $270     $123


NET INCOME PER SHARE:

    Basic                           $.32     $.13            $.35     $.16
    Diluted                         $.30     $.13            $.33     $.15

WEIGHTED AVERAGE SHARES OUTSTANDING:

    Basic                            780      772             779      771
    Diluted                          820      809             814      810

<F1>
See accompanying notes.


                                  Southwest Airlines Co.
                        Condensed Consolidated Statement of Cash Flows
                                      (in millions)
                                       (unaudited)

                                           Three months ended  Six months ended
                                                   June 30,          June 30,
                                                 2003    2002     2003   2002
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income                                     $246    $102     $270   $123
  Adjustments to reconcile net income to
   cash provided by operating activities:
    Depreciation                                   95      86      188    171
    Deferred income taxes                         136      62      148     76
    Amortization of deferred gains on sale and
     leaseback of aircraft                         (4)     (4)      (8)    (8)
    Amortization of scheduled airframe
     inspections & repairs                         12       11      24     22
    Changes in certain assets and liabilities:
    Accounts and other receivables                 31        4      47    (58)
    Other current assets                           (7)     (11)     (8)     6
    Accounts payable and accrued liabilities       59       77      52     (9)
    Air traffic liability                          40      (30)    163     81
    Income taxes payable                           11        -      11      -
  Other                                            19       (4)     18    (18)
     Net cash provided by operating activities    638      293     905    386

CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchases of property and equipment, net       (325)    (144)   (518)  (253)

CASH FLOWS FROM FINANCING ACTIVITIES:
  Issuance of long-term debt                        -        -       -    385
  Proceeds from trust arrangement                   -       60       -    119
  Proceeds from Employee stock plans               20       11      32     31
  Payments of long-term debt and
   capital lease obligations                      (14)     (50)    (20)   (55)
  Payment of trust arrangement                      -     (161)      -   (284)
  Payment of revolving credit facility              -        -       -   (475)
  Payments of cash dividends                       (4)      (4)    (11)   (11)
  Other, net                                        -       (1)      1     (5)
     Net cash provided by (used in)
      financing activities                          2     (145)      2   (295)

NET INCREASE (DECREASE) IN CASH AND
 CASH EQUIVALENTS                                 315        4     389   (162)
CASH AND CASH EQUIVALENTS AT
 BEGINNING OF PERIOD                            1,889    2,114   1,815  2,280

CASH AND CASH EQUIVALENTS AT END OF PERIOD     $2,204   $2,118  $2,204 $2,118

CASH PAYMENTS FOR:
 Interest, net of amount capitalized              $15      $21     $37    $38
 Income taxes                                      $4       $2      $4     $2

<F1>
See accompanying notes.


Southwest Airlines Co.

Notes to Condensed Consolidated Financial Statements


(unaudited)

1. BASIS OF PRESENTATION

The accompanying unaudited condensed consolidated financial statements of Southwest Airlines Co. (Company or Southwest) have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. The unaudited condensed consolidated financial statements for the interim periods ended June 30, 2003 and 2002 include all adjustments (which include only normal recurring adjustments) which are, in the opinion of management, necessary for a fair presentation of the results for the interim periods. The Condensed Consolidated Balance Sheet as of December 31, 2002 has been derived from the Company's audited financial statements as of that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. Operating results for the three and six months ended June 30, 2003 are not necessarily indicative of the results that may be expected for the year ended December 31, 2003. For further information, refer to the consolidated financial statements and footnotes thereto included in the Southwest Airlines Co. Annual Report on Form 10-K for the year ended December 31, 2002.

2. STOCK-BASED EMPLOYEE COMPENSATION

The Company has stock-based compensation plans covering the majority of its Employee groups, including plans adopted via collective bargaining, a plan covering the Company's Board of Directors, and plans related to employment contracts with certain Executive Officers of the Company. The Company accounts for stock-based compensation utilizing the intrinsic value method in accordance with the provisions of Accounting Principles Board Opinion No. 25 (APB 25), "Accounting for Stock Issued to Employees" and related Interpretations. Accordingly, no compensation expense is recognized for fixed option plans because the exercise prices of Employee stock options equal or exceed the market prices of the underlying stock on the dates of grant.

The following table represents the effect on net income and earnings per share if the Company had applied the fair value based method and recognition provisions of Statement of Financial Accounting Standards (SFAS) No. 123, "Accounting for Stock-Based Compensation," to stock-based Employee compensation (in millions, except per share amounts):


                                          Three months         Six months
                                          ended June 30,      ended June 30,
                                          2003      2002      2003      2002
Net income, as reported                  $246       $102      $270      $123
Add: Stock-based Employee compensation
  expense included in reported income,
  net of related tax effects                -          -         -         -
Deduct: Total stock-based Employee
  compensation expense determined under
  fair value based methods for all
  awards, net of related tax effects      (14)        (8)      (31)      (16)

Pro forma net income                     $232        $94      $239      $107

Net income per share
  Basic, as reported                     $.32       $.13      $.35      $.16
  Basic, pro forma                       $.30       $.12      $.31      $.14

  Diluted, as reported                   $.30       $.13      $.33      $.15
  Diluted, pro forma                     $.29       $.12      $.30      $.13

As required, the pro forma disclosures above include options granted since January 1, 1995. Consequently, the effects of applying SFAS 123 for providing pro forma disclosures may not be representative of the effects on reported net income for future years until all options outstanding are included in the pro forma disclosures. For purposes of pro forma disclosures, the estimated fair value of stock-based compensation plans and other options is amortized to expense primarily over the vesting period.

In December 2002, the FASB issued SFAS No. 148, "Accounting for Stock-Based Compensation-Transition and Disclosure." SFAS No. 148 amends the transition and disclosure provisions of SFAS No. 123. The Company is currently evaluating SFAS No. 148 to determine if it will adopt SFAS No. 123 to account for Employee stock options using the fair value method and, if so, when to begin transition to that method. If the Company had adopted the prospective transition method prescribed by SFAS 148 on January 1, 2003, compensation expense for the three and six months ended June 30, 2003 of $4 million and $15 million, respectively, would have been recorded. After related profitsharing and income tax effects, this would have reduced net income by $2 million and $8 million, respectively. Net income per share, diluted, for second quarter 2003 would not have been affected. Net income per share, diluted, for the six months ended June 30, 2003, would have been reduced by $.01 per share.

3. DIVIDENDS

During the three month periods ended June 30, 2003 and March 31, 2003, dividends of $.0045 per share were declared on the 780 million shares and 778 million shares of common stock then outstanding, respectively. During the three month periods ended June 30, 2002 and March 31, 2002, dividends of $.0045 per share were declared on the 772 million shares and 771 million shares of common stock then outstanding, respectively.


4. NET INCOME PER SHARE

The following table sets forth the computation of basic and diluted net income per share (in millions except per share amounts):

                                       Three months ended     Six months ended
                                             June 30,             June 30,
                                       2003          2002     2003        2002
NUMERATOR:
  Net income available to
    common stockholders                $246          $102     $270        $123

DENOMINATOR:
  Weighted-average shares
    outstanding, basic                  780           772      779         771
  Dilutive effect of Employee stock
    Options                              40            37       35          39
  Adjusted weighted-average shares
    outstanding, diluted                820           809      814         810

NET INCOME PER SHARE:
  Basic                                $.32          $.13     $.35        $.16

  Diluted                              $.30          $.13     $.33        $.15

5. FINANCIAL DERIVATIVE INSTRUMENTS

Airline operators are inherently dependent upon energy to operate and, therefore, are impacted by changes in jet fuel prices. Jet fuel and oil consumed in the three months ended June 30, 2003 and 2002 represented approximately 14.1 percent and 14.7 percent of Southwest's operating expenses, respectively. The Company endeavors to acquire jet fuel at the lowest possible prices. Because jet fuel is not traded on an organized futures exchange, liquidity for jet fuel hedging is limited. However, the Company has found that both crude oil and heating oil contracts are effective commodities for hedging jet fuel. The Company utilizes financial derivative instruments as hedges to decrease its exposure to jet fuel price increases. The Company does not purchase or hold any derivative financial instruments for trading purposes.

The Company utilizes financial derivative instruments for both short-term and long-term time frames when it appears the Company can take advantage of market conditions. The Company was hedged for 100 percent of its first quarter 2003 and second quarter 2003 fuel consumption. For third quarter 2003, the Company has fuel hedges in place for 87 percent of its expected fuel consumption with a combination of derivative instruments that effectively cap prices under $24 per barrel. As of June 30, 2003, the Company also had agreements in place to hedge 87 percent of its fourth quarter 2003 total anticipated jet fuel requirements with a combination of derivative instruments that effectively cap prices under $24 per barrel, approximately 80 percent of its anticipated 2004 requirements at approximately $23 per barrel, and approximately 45 percent of its anticipated 2005 requirements at approximately $23 per barrel. As of June 30, 2003, the majority of the Company's remaining 2003 hedges are effectively


heating oil-based positions in the form of option contracts. The majority of the remaining hedge positions are crude oil-based option contracts.

The Company accounts for its fuel hedge derivative instruments as cash flow hedges, as defined, in Statement of Financial Accounting Standards No. 133, Accounting for Derivative Instruments and Hedging Activities, as amended (SFAS 133). All changes in fair value that are considered to be effective, as defined, are recorded in "Accumulated other comprehensive income" until the underlying jet fuel is consumed. The fair value of the Company's financial derivative instruments at June 30, 2003, was a net asset of approximately $178 million. The current portion of this net asset, approximately $111 million, is classified as "Fuel hedge contracts" and the noncurrent portion, approximately $67 million, is classified in "Other assets" in the Condensed Consolidated Balance Sheet. The fair value of the derivative instruments, depending on the type of instrument, was determined by the use of present value methods or standard option value models with assumptions about commodity prices based on those observed in underlying markets.

During the three months ended June 30, 2003 and 2002, the Company recognized $36 million and $7 million in gains in "Fuel and oil" expense, respectively, from hedging activities. During the three months ended June 30, 2002, the Company also recognized approximately $3 million of net expense in "Other
(gains)losses, net," related to the ineffectiveness of its hedges. The Company recognized approximately $6 million of net expense related to amounts excluded from the Company's measurements of hedge effectiveness, in "Other (gains) losses, net" during both second quarter 2003 and second quarter 2002.

As of June 30, 2003, the Company had approximately $76 million in unrealized gains, net of tax, in "Accumulated other comprehensive income" related to fuel hedges. Included in this total are approximately $49 million in net unrealized gains that are expected to be realized in earnings during the twelve months following June 30, 2003.

During second quarter 2003, the Company entered into interest rate swap agreements relating to its $385 million 6.5% senior unsecured notes due March 1, 2012 and $375 million 5.496% Class A-2 pass-through certificates due November 1,2006. Under the first interest rate swap agreement, the Company pays the London InterBank Offered Rate (LIBOR) plus a margin every six months and receives 6.5% every six months on a notional amount of $385 million until March 1, 2012. Under the second agreement, the Company pays LIBOR plus a margin every six months and receives 5.496% every six months on a notional amount of $375 million until November 1, 2006.

The Company's interest rate swap agreements qualify as fair value hedges, as defined by SFAS 133. The fair value of the interest rate swap agreements, which are adjusted regularly, are recorded in the Condensed Consolidated Balance Sheet as necessary, with a corresponding adjustment to the carrying value of the long-term debt. The fair value of the interest rate swap agreements, excluding accrued interest, at June 30, 2003 was approximately $7 million. This amount is recorded in "Other assets" in the Condensed Consolidated Balance Sheet. In accordance with fair value hedging, the Company also recorded a $7 million increase to the carrying value of long-term debt.


6. COMPREHENSIVE INCOME

Comprehensive income included changes in the fair value of certain financial derivative instruments, which qualify for hedge accounting, and unrealized gains and losses on certain investments. Comprehensive income totaled $261 million and $290 million for the three and six months ended June 30, 2003, respectively. Comprehensive income totaled $106 million and $186 million for the three and six months ended June 30, 2002, respectively. The differences between net income and comprehensive income for each of these periods was as follows (in millions):

                                                Three months ended June 30,
                                                    2003          2002
Net income                                          $246          $102
  Unrealized gain (loss) on derivative instruments,
   net of deferred taxes of $9 and $3                 13             4
  Other, net of deferred taxes of $1 and $0            2             -
  Total other comprehensive income                    15             4

Comprehensive income                                $261          $106

                                                  Six months ended June 30,
                                                    2003          2002

Net income                                          $270          $123
  Unrealized gain (loss) on derivative instruments,
   net of deferred taxes of $13 and $41               20            63
  Other, net of deferred taxes of $0 and $0            -             -
  Total other comprehensive income                    20            63

Comprehensive income                                $290          $186

A rollforward of the amounts included in "Accumulated other comprehensive income," net of taxes, is shown below (in millions):

                                                                Accumulated
                                         Fuel                      other
                                         Hedge                 comprehensive
                                      Derivatives    Other      income (loss)
Balance at December 31, 2002              $56         ($2)          $54
  2003 changes in value                    74           -            74
  Reclassification to earnings            (54)          -           (54)
Balance at June 30, 2003                  $76         ($2)          $74

7. REVOLVING CREDIT FACILITY

The Company is a party to two unsecured revolving credit facilities from which it can borrow up to $575 million from a group of banks. One of the facilities, for half of the total amount, was renewed for an additional year during April


2003. This facility now expires in April 2004. The other facility, for half of the amount, expires in April 2005. At the Company's option, interest on the facilities can be calculated on one of several different bases. For most borrowings, Southwest would anticipate choosing a floating rate based upon LIBOR. If fully drawn, the spread over LIBOR would be 75 basis points for both facilities given Southwest's credit rating at June 30, 2003.

8. RECENTLY ISSUED ACCOUNTING STANDARDS

In November 2002, the Financial Accounting Standards Board (FASB) issued Interpretation No. 45, "Guarantor's Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of Indebtedness of Others" (FIN 45). FIN 45 requires that a liability for the fair value of an obligation for guarantees issued or modified after December 31, 2002 be recorded in the financial statements of the guarantor. Guarantees pre-existing before the implementation of FIN 45 are required to be disclosed in financial statements issued after December 15, 2002. While the Company has various guarantees included in contracts in the normal course of business, primarily in the form of indemnities, these guarantees would only result in immaterial increases in future costs, and do not represent significant commitments or contingent liabilities of the indebtedness of others.

In January 2003, the FASB issued Interpretation No. 46, "Consolidation of Variable Interest Entities" (FIN 46) which requires the consolidation of variable interest entities, as defined. FIN 46 is applicable to variable interest entities created after January 31, 2003. Variable interest entities created prior to February 1, 2003, must be consolidated effective July 1, 2003. Disclosures are required currently if the Company expects to consolidate any variable interest entities. The Company does not currently believe that any material entities will be consolidated with Southwest as a result of FIN 46.

9. EMERGENCY WARTIME SUPPLEMENTAL APPROPRIATIONS ACT

On April 16, 2003, the Emergency Wartime Supplemental Appropriations Act (Wartime Act) was signed into law. Among other items, the legislation includes a $2.3 billion government grant for airlines. Southwest received $271 million as its proportional share of the grant during second quarter 2003. This amount is included in "Other (gains) losses" in the accompanying income statement for the three and six months ended June 30, 2003.


Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

Comparative Consolidated Operating Statistics

Relevant Southwest comparative operating statistics for the three and six months ended June 30, 2003 and 2002 are as follows:

                                           Three months ended June 30,
                                              2003            2002       Change
Revenue passengers carried              17,063,496      16,772,419         1.7%
Revenue passenger miles (RPMs) (000s)   12,550,665      11,998,867         4.6%
Available seat miles (ASMs) (000s)      17,893,765      17,172,875         4.2%
Load factor                                   70.1%           69.9%      .2 pts.
Average length of passenger haul (miles)       736             715         2.9%
Trips flown                                237,518         236,830         0.3%
Average passenger fare                      $85.87          $84.98         1.0%
Passenger revenue yield per RPM (cents)      11.67           11.88        (1.8)%
Operating revenue yield per ASM (cents)       8.47            8.58        (1.3)%
Operating expenses per ASM (cents)            7.68            7.48         2.7%
Operating expenses per ASM,
  excluding fuel (cents)                      6.60            6.38         3.4%
Fuel costs per gallon,
  excluding fuel tax (cents)                  67.4            67.4           -
Fuel consumed, in gallons (millions)           286             280         2.1%
Number of Employees at period-end           32,902          33,149        (0.7)%
Size of fleet at period-end                    379             366         3.6%


                                            Six months ended June 30,
                                              2003            2002       Change
Revenue passengers carried              32,141,033      31,235,701         2.9%
Revenue passenger miles (RPMs) (000s)   23,446,366      22,391,457         4.7%
Available seat miles (ASMs) (000s)      35,292,897      33,692,832         4.7%
Load factor                                   66.4%           66.5%    (.1) pts.
Average length of passenger haul (miles)       729             717         1.7%
Trips flown                                470,605         468,025         0.6%
Average passenger fare                      $86.23          $84.52         2.0%
Passenger revenue yield per RPM (cents)      11.82           11.79         0.3%
Operating revenue yield per ASM (cents)       8.12            8.10         0.2%
Operating expenses per ASM (cents)            7.59            7.40         2.6%
Operating expenses per ASM,
  excluding fuel (cents)                      6.45            6.33         1.9%
Fuel costs per gallon,
  excluding fuel tax (cents)                  71.0            65.4         8.6%
Fuel consumed, in gallons (millions)           563             548         2.7%
Number of Employees at period-end           32,902          33,149        (0.7)%
Size of fleet at period-end                    379             366         3.6%


Material Changes in Results of Operations

Summary

The Company's second quarter began with the onset of the United States war with Iraq and a continued languid airline revenue and economic environment. The Company saw a disruption in revenue and booking trends up to and during the war. In mid-June, traffic and revenue trends began to improve and traffic levels for July and August are expected to be strong. The Company also continued its efforts to control costs, maintain high productivity levels, and offer outstanding Customer Service. The Company's second quarter 2003 earnings performance represented its 49th consecutive quarterly profit.

Consolidated net income for second quarter 2003 was $246 million ($.30 per share, diluted), compared to second quarter 2002 net income of $102 million ($.13 per share, diluted). As disclosed in Note 9 to the unaudited condensed consolidated financial statements, results for second quarter 2003 include a $271 million government grant from the Wartime Act. The Company believes that excluding the impact of this special item will enhance comparative analysis of results. The government grant received during second quarter 2003, which was related to the war with Iraq, was not indicative of the Company's operating performance for that period, nor should it be considered in developing trend analysis for future periods, including third quarter 2003. The following table reconciles results reported for the three and six months ended June 30, 2003, compared to the prior year, with results excluding the impact of the government grant received in second quarter 2003:

                                         Three months ended    Six months ended
                                              June 30,              June 30,
(In millions, except per share amounts)    2003       2002      2003       2002
Operating expenses, as reported          $1,375     $1,284    $2,680     $2,492
Profitsharing impact of government grant    (41)         -       (41)         -
Operating expenses, excluding impact of
  government grant                       $1,334     $1,284    $2,639     $2,492

Operating income, as reported              $140       $189      $186       $238
Profitsharing impact of government grant     41          -        41          -
Operating income, excluding impact of
  government grant                         $181       $189      $227       $238

Net income, as reported                    $246       $102      $270       $123
Government grant, net of income taxes
  and profitsharing                        (143)         -      (143)         -
Net income, excluding government grant     $103       $102      $127       $123

Net income per share, diluted, as reported $.30       $.13      $.33       $.15
Government grant, net of income taxes
  and profitsharing                        (.17)         -      (.17)         -
Net income per share, diluted, excluding
  government grant                         $.13       $.13      $.16       $.15


Excluding the government grant from second quarter 2003 results, net income was $103 million, slightly higher than second quarter 2002, even though the prior year results included $36 million in additional passenger revenue from a reduction in estimated future refunds and exchanges included in "Air traffic liability." The $36 million adjustment was necessary due to a change in Customer travel patterns and a higher than usual mix of low-fare nonrefundable ticket sales following the September 11, 2001 terrorist attacks. For first half 2003, net income was $127 million, also slightly higher than net income for the comparable period of 2002, which also included the $36 million adjustment to passenger revenue.

Second quarter 2003 operating income was $140 million compared to operating income of $189 million in 2002, a decrease of 25.9 percent, primarily due to the profitsharing impact in 2003 of the $271 million government grant. Second quarter 2003 operating income, excluding the government grant, was $181 million, 4.2 percent below the prior year. The decrease was due to the second quarter 2002 $36 million adjustment to passenger revenue. For first half 2003, operating income was $227 million, slightly below operating income of $238 million for the comparable period of 2002, also due to the prior year $36 million adjustment to passenger revenue.

Although the Company continues to experience significantly higher costs for aviation insurance and airport security compared to pre-September 11, 2001, thus far, Southwest has been able to mitigate a portion of such increases through lower agency commissions, the Company's fuel hedging program, and other cost reduction efforts implemented following the terrorist attacks. Based on the Company's current revenue and cost outlook and, barring any unforeseen event, the Company expects third quarter 2003 earnings to exceed third quarter 2002 earnings of $75 million, which included $48 million (pretax), in "Other gains" from the Company's final payment received from the Air Transportation Safety and System Stabilization Act.

Comparison of three months ended June 30, 2003 to three months ended June 30, 2002

Revenues

Consolidated operating revenues increased by $42 million, or 2.9 percent, primarily due to a $40 million, or 2.8 percent increase in passenger revenues. The increase in passenger revenues was primarily due to a 4.6 percent increase in revenue passenger miles (RPMs) flown. The year-over-year increase in revenue was lower than it would have been due to the second quarter 2002 inclusion of $36 million in additional passenger revenue from a reduction in estimated refunds and exchanges included in "Air traffic liability."

Second quarter 2003 capacity, as measured by available seat miles (ASMs), increased 4.2 percent compared to second quarter 2002. The capacity increase resulted from the addition of 13 aircraft (net of one retirement) from June 2002 through June 2003. The second quarter 2003 load factor was 70.1 percent, an increase of .2 points compared to 2002. The Company also experienced a 1.7 percent increase in revenue passengers carried compared to second quarter 2002.

Second quarter 2003 passenger yield per RPM decreased 1.8 percent to 11.67 cents from 11.88 cents in second quarter 2002 due to the prior year $36 million in additional passenger revenue from a reduction in estimated refunds and exchanges. Operating revenue yield per ASM decreased 1.3 percent to 8.47


cents compared to second quarter 2002, also due to the prior year passenger revenue adjustment. However, average passenger fare increased 1.0 percent to $85.87 despite the prior year passenger revenue adjustment, primarily due to moderate fare increases taken by the Company.

Thus far, traffic and load factors for July, and bookings for the remainder of July and August are strong due to high demand for vacation travel. Thus far in third quarter 2003, unit revenues are exceeding year ago levels. The outlook for the economy remains uncertain, however, and the Company remains concerned about travel post-Labor Day.

Consolidated freight revenues increased by $3 million, or 13.6 percent, primarily due to increases in freight and cargo revenues from both moderate rate increases taken by the Company and an increase in the number of shipments. For third quarter 2003, the Company may experience a year-over-year decrease in consolidated freight revenues compared to third quarter 2002 primarily due to lower mail revenues as the U.S. Postal Service may shift some mail shipments to other freight and commercial carriers. Other revenues decreased slightly in second quarter 2003 as a 36.5 percent decline in charter revenue was mostly offset by a 21.5 percent increase in commissions earned from programs the Company sponsors with certain business partners, such as the Company sponsored First USA Visa card.

Operating expenses

To a large extent, changes in operating expenses for airlines are driven by changes in capacity, or ASMs. The following presents Southwest's operating expenses per ASM for the three months ended June 30, 2003 and 2002 followed by explanations of changes on a per ASM basis:

                               Three months ended June 30,   Per ASM   Percent
                                     2003         2002         Change    Change
Salaries, wages, and benefits      3.28         2.92           .36       12.3
Fuel and oil                       1.08         1.10          (.02)      (1.8)
Maintenance materials
  and repairs                       .58          .59          (.01)      (1.7)
Agency commissions                  .07          .09          (.02)     (22.2)
Aircraft rentals                    .26          .27          (.01)      (3.7)
Landing fees and other rentals      .51          .51             -          -
Depreciation                        .53          .50           .03        6.0
Other operating expenses           1.37         1.50          (.13)      (8.7)

Total                              7.68         7.48           .20        2.7

Operating expenses per ASM were 7.68 cents, a 2.7 percent increase compared to 7.48 cents for second quarter 2002. This increase was primarily due to higher profitsharing expense (reflected in salaries, wages, and benefits) from the increase in earnings available for profitsharing compared to second quarter 2002, primarily due to the $271 million government grant. Based on recent trends, the Company currently expects third quarter 2003 unit costs to exceed third quarter 2002 primarily due to higher wages and health benefit costs.


Salaries, wages, and benefits expense per ASM increased 12.3 percent. Approximately 65 percent of the increase was due to a $41 million increase in profitsharing, which related to the $271 million government grant. The remaining 35 percent of the increase was primarily due to higher wages from higher average wage rates.

Fuel and oil expense per ASM decreased 1.8 percent primarily due to a decrease in the Company's fuel burn rate per ASM flown. Although the Company flew 4.2 percent more available seat miles than second quarter 2002, fuel consumption was up only 2.2 percent. The average fuel cost per gallon in second quarter 2003 was 67.4 cents, the same as second quarter 2002, including the effects of hedging activities. For third quarter 2003, the Company has fuel hedges in place for 87 percent of its expected fuel consumption with a combination of derivative instruments that effectively cap prices under $24 per barrel. The majority of the Company's near term hedge positions are in the form of option contracts. See Note 5 to the unaudited condensed consolidated financial statements for further discussion of the Company's hedging activities.

Maintenance materials and repairs per ASM decreased 1.7 percent primarily due to the increase in ASMs exceeding the dollar increase in maintenance materials and repairs. The Company expects third quarter 2003 maintenance materials and repairs per ASM to be higher than third quarter 2002 expense due to a year-over-year increase in contract rates for outsourced engine maintenance.

Agency commissions per ASM decreased 22.2 percent primarily due to a decline in commissionable revenues. The percentage of commissionable revenues decreased from approximately 20 percent in second quarter 2002 to approximately 16 percent in second quarter 2003. Approximately 53 percent of revenues in second quarter 2003 were derived through the Company's web site at www.southwest.com versus 46 percent of revenues in second quarter 2002. Based on recent trends, the Company currently expects commissionable revenues to remain in the 16 percent range in third quarter 2003.

Aircraft rentals per ASM decreased 3.7 percent compared to second quarter 2002 primarily due to the increase in ASMs relative to the number of leased aircraft. Although ASMs increased 4.2 percent, the number of leased aircraft declined by one, as a result of a retirement in second quarter 2003. All of the aircraft acquired in 2002 and 2003 are owned by the Company. Approximately 23.5 percent of the Company's aircraft fleet was under operating lease at June 30, 2003, compared to 24.6 percent at June 30, 2002.

Landing fees and other rentals per ASM was flat compared to second Quarter 2002 as a 3.7 percent increase in other rentals per ASM was offset by a 4.2 percent decrease in landing fees per ASM. The increase in other rentals expense per ASM was primarily due to the Company's expansion of gate and counter space at several airports. The decrease in landing fees expense per ASM was primarily due to an increase in the average stage length per trip flown, or miles flown per aircraft trip. The Company flew 4.2 percent more ASMs, but the number of trips flown remained relatively flat compared to 2002.

Depreciation expense per ASM increased 6.0 percent primarily due to an increase in owned aircraft. All 14 of the aircraft put into service by the Company over the past twelve months are owned by the Company. This, along with the retirement of one leased aircraft, has increased the Company's percentage


of aircraft owned or on capital lease to 76.5 percent at June 30, 2003 from 75.4 percent at June 30, 2002.

Other operating expenses per ASM decreased 8.7 percent primarily due to a decrease in aviation insurance costs. Following the terrorist attacks, commercial aviation insurers dramatically increased the premiums and reduced the amount of war-risk coverage available to commercial carriers. The federal government stepped in to provide supplemental third-party war-risk insurance coverage to commercial carriers for renewable 60-days periods, at substantially lower premiums than prevailing commercial rates and for levels of coverage not available in the commercial market. In November 2002, Congress passed the Homeland Security Act of 2002, which mandated the federal government provide third party, passenger, and hull war-risk insurance coverage to commercial carriers through August 31, 2003, and which permits such coverage to be extended by the government through December 31, 2003. The Emergency Wartime Supplemental Appropriations Act (see Note 9 to the unaudited condensed consolidated financial statements) extends the government's mandate to provide war-risk insurance until August 31, 2004 and permits such coverage to be extended until December 31, 2004. As a result of more coverage from government insurance programs and a more stable aviation insurance market, the Company was able to negotiate lower 2003 aviation insurance premiums than 2002. However, aviation insurance remains substantially higher than before September 11, 2001. The Company currently expects a year-over-year decrease in other operating expenses per ASM for third quarter 2003, primarily from lower aviation insurance costs.

Other

Interest expense decreased by $4 million, or 14.8 percent, primarily due to lower effective interest rates. Two interest-rate swaps were executed by the Company in second quarter 2003 to convert a portion of its fixed-rate debt to a lower floating rate. The Company entered into interest rate swap agreements relating to its $385 million 6.5% senior unsecured notes due March 1, 2012 and $375 million 5.496% Class A-2 pass-through certificates due November 1, 2006. See Note 5 to the unaudited condensed consolidated financial statements for more information on the Company's hedging activities.

Capitalized interest increased by $3 million, or 60.0 percent, primarily due to an increase in progress payment balances for future aircraft deliveries.

Interest income decreased by $2 million, or 22.2 percent, primarily due to a decrease in rates earned on investments.

Second quarter 2003 "Other (gains) losses, net" primarily consist of a $271 million government grant from the Wartime Act. See Note 9 to the unaudited condensed consolidated financial statements for more information on this grant. Also included in second quarter 2003 "Other (gains) losses, net" are amounts recorded in accordance with SFAS 133. See Note 5 to the unaudited condensed consolidated financial statements for more information on the Company's hedging activities. The Company recognized $6 million of expense related to amounts excluded from the Company's measurements of hedge effectiveness. In second quarter 2002, the Company recognized approximately $6 million of expense related to amounts excluded from the Company's measurements of hedge effectiveness and $3 million in expense related to the ineffectiveness of its hedges.


Comparison of six months ended June 30, 2003 to six months ended June 30, 2002

Revenues

Consolidated operating revenues increased by $136 million, or 5.0 percent, primarily due to a $131 million, or 5.0 percent increase in passenger revenues. The increase in passenger revenues was primarily due to a 4.7 percent increase in revenue passenger miles (RPMs) flown.

First half 2003 capacity, as measured by available seat miles (ASMs), increased 4.7 percent compared to 2002. The capacity increase resulted from the net addition of 13 aircraft (net of one retirement) from June 2002 through June 2003. The 2003 load factor was 66.4 percent, approximately the same as 2002. The Company also experienced a 2.9 percent increase in revenue passengers carried compared to 2002.

First half 2003 passenger yield per RPM increased slightly to 11.82 cents from 11.79 cents in 2002. Operating revenue yield per ASM increased slightly to 8.12 cents from 8.10 cents in 2002, primarily due to a higher average passenger fare. Average passenger fare increased 2.0 percent to $86.23 despite the prior year $36 million passenger revenue adjustment, primarily due to moderate fare increases taken by the Company.

Consolidated freight revenues increased by $4 million, or 9.3 percent due to an increase in freight and cargo revenues, primarily from moderate rate increases taken by the Company. Other revenues were slightly higher in first half 2003 as a 26.6 percent increase in commissions earned from programs the Company sponsors with certain business partners, such as the Company sponsored First USA Visa card, was mostly offset by a decline in charter revenues.

Operating expenses

To a large extent, changes in operating expenses for airlines are driven by changes in capacity, or ASMs. The following presents Southwest's operating expenses per ASM for the six months ended June 30, 2003 and 2002 followed by explanations of changes on a per ASM basis:

                                 Six months ended June 30,   Per ASM   Percent
                                   2003           2002       Change    Change
Salaries, wages, and benefits      3.13           2.86         .27        9.4
Fuel and oil                       1.14           1.06         .08        7.5
Maintenance materials
  and repairs                       .60            .59         .01        1.7
Agency commissions                  .07            .09        (.02)     (22.2)
Aircraft rentals                    .26            .28        (.02)      (7.1)
Landing fees and other rentals      .51            .51           -          -
Depreciation                        .53            .51         .02        3.9
Other operating expenses           1.35           1.50        (.15)     (10.0)

Total                              7.59           7.40         .19        2.6


Operating expenses per ASM were 7.59 cents, a 2.6 percent increase compared to 7.40 cents for 2002. The overall increase was primarily due to higher salaries, wages and benefits from higher average wage rates and higher profitsharing expense from the government grant.

Salaries, wages, and benefits expense per ASM increased 9.4 percent. Approximately half of the increase was due higher average wage rates compared to 2002. The other half of the increase was due to an increase in profitsharing from the increase in earnings available for profitsharing, primarily from the $271 million government grant, and an increase in health care costs.

Fuel and oil expense per ASM increased 7.5 percent primarily due to an increase in average fuel cost per gallon. The average fuel cost per gallon in first half 2003 was 71.0 cents, an 8.6 percent increase compared to 65.4 cents per gallon in 2002, including the effects of hedging activities. See Note 5 to the unaudited condensed consolidated financial statements for further discussion of the Company's hedging activities.

Maintenance materials and repairs per ASM increased 1.7 percent primarily due to an increase in contract rates per hour flown for outsourced engine maintenance. The Company outsources its engine maintenance work for 737-300 and 737-500 aircraft and expense is based on the number of hours flown for those aircraft and the rate charged per hour flown. This increase was partially offset by a decrease in the number of outsourced heavy maintenance events for airframes.

Agency commissions per ASM decreased 22.2 percent primarily due to a decline in commissionable revenues. The percentage of commissionable revenues decreased from approximately 21 percent in first half 2002 to approximately 17 percent in 2003. Approximately 52 percent of revenues in first half 2003 were derived through the Company's web site at www.southwest.com versus 46 percent of revenues in 2002.

Aircraft rentals per ASM decreased 7.1 percent compared to 2002 primarily due to the increase in ASMs relative to the number of leased aircraft. Although ASMs increased 4.7 percent, the number of leased aircraft declined by one, as a result of a retirement in 2003. All of the aircraft acquired in 2002 and 2003 are owned by the Company. Approximately 23.5 percent of the Company's aircraft fleet was under operating lease at June 30, 2003, compared to 24.6 percent at June 30, 2002.

Landing fees and other rentals per ASM was flat compared to 2002 as a 3.7 percent increase in other rentals per ASM was offset by a decrease in landing fees per ASM. The increase in other rentals expense per ASM was primarily due to the Company's expansion of gate and counter space at several airports. The decrease in landing fees expense per ASM primarily was due to first half 2003 credits from airports' audits of prior periods. The amount of credits received in first half 2003 was more than the credits received in the same prior year period.


Depreciation expense per ASM increased 3.9 percent primarily due to an increase in owned aircraft. All 14 of the aircraft put into service by the Company over the past twelve months have been purchased. This, along with the retirement of one leased aircraft, has increased the Company's percentage of aircraft owned or on capital lease to 76.5 percent at June 30, 2003 from 75.4 percent at June 30, 2002.

Other operating expenses per ASM decreased 10.0 percent primarily due to a decrease in aviation insurance costs. As a result of more coverage from government insurance programs and a more stable aviation insurance market, the Company was able to negotiate lower 2003 aviation insurance premiums than 2002. However, aviation insurance premiums remain substantially higher than before September 11, 2001.

Other

Interest expense decreased by $4 million, or 7.5 percent, primarily due to lower effective interest rates. Two interest-rate swaps were executed by the Company in second quarter 2003 to convert a portion of its fixed-rate debt to a lower floating rate. The Company entered into interest rate swap agreements relating to its $385 million 6.5% senior unsecured notes due March 1, 2012 and $375 million 5.496% Class A-2 pass-through certificates due November 1, 2006. See Note 5 to the unaudited condensed consolidated financial Statements for more information on the Company's hedging activities.

Capitalized interest increased by $6 million, or 66.7 percent, primarily due to an increase in progress payment balances for future aircraft deliveries.

Interest income decreased by $7 million, or 36.8 percent, primarily due to a decrease in rates earned on investments.

First half 2003 "Other (gains) losses, net" primarily consist of a $271 million government grant from the Wartime Act. See Note 9 to the unaudited condensed consolidated financial statements for more information on this reimbursement. Also included in first half 2003 "Other (gains) losses, net" are amounts recorded in accordance with SFAS 133. See Note 5 to the unaudited condensed consolidated financial statements for more information on the Company's hedging activities. The Company recognized $13 million of expense related to amounts excluded from the Company's measurements of hedge effectiveness and $14 million in income related to the ineffectiveness of its hedges. In 2002, the Company recognized approximately $12 million of expense related to amounts excluded from the Company's measurements of hedge effectiveness and $2 million in income related to the ineffectiveness of its hedges.

Liquidity and Capital Resources

Net cash provided by operating activities was $905 million for the six months ended June 30, 2003, compared to $386 million in the same prior year period. The increase was primarily due to higher net income in 2003, largely attributable to the $271 million government grant. Net cash provided by operating activities was $1,038 million for the 12 months ended June 30, 2003. Cash generated from operating activities for the 12 months ended June 30, 2003 was primarily used to finance capital expenditures.


Cash flows used in investing activities in first half 2003 totaled $518 million compared to $253 million in 2002. Investing activities in both years consisted primarily of payments for new 737-700 aircraft delivered to the Company and progress payments for future aircraft deliveries. Cash flows used in investing activities for the 12 months ended June 30, 2003 totaled $868 million.

Net cash from financing activities in first half 2003 was $2 million compared to $295 million, net, used in financing activities in 2002. Cash used in financing activities during first half 2002 was primarily for the repayment of the Company's $475 million revolving credit facility that the Company drew down in September 2001 and for the repayment of a special purpose trust through which the Company had financed the purchase of 19 new aircraft during 2001 and 2002. The trust was dissolved prior to December 31, 2002. These investing activities were partially offset by cash generated from the issuance of $385 million in unsecured notes in March 2002.

Contractual Obligations and Contingent Liabilities and Commitments

Southwest has contractual obligations and commitments primarily with regards to future purchases of aircraft, payment of debt, and lease arrangements. Following the receipt of three new 737-700 aircraft from Boeing in the second quarter 2003 and two in first quarter 2003, the Company has 12 remaining 737-700 aircraft deliveries for 2003. Also, during second quarter 2003, the Company exercised its remaining options for 2004, exercised six 2005 options for accelerated delivery in 2004, and accelerated the firm delivery of two 2005 aircraft to 2004. This change brings the Company's total firm orders to 42 for 2004. The following table details the Company's current firm orders, options, and purchase rights through 2012.

                     Current Schedule
                   Firm         Options*
2003**               17               -
2004                 42               -
2005                 22              12
2006                 22              16
2007                 25              29
2008                  6              45
2009-2012             -             177
Total               134             279

*Includes purchase rights
**Includes five aircraft delivered in first half 2003


The following table details information on the 379 aircraft in the Company's fleet as of June 30, 2003:

                            Average       Number     Number     Number
   737 Type     Seats      Age (Yrs)   of Aircraft    Owned     Leased
  -200           122          20.8          26          24          2
  -300           137          12.1         194         110         84
  -500           122          12.2          25          16          9
  -700           137           3.1         134         133          1

TOTALS                         9.5         379         283         96

The Company has the option, which must be exercised two years prior to the contractual delivery date, to substitute -600s or -800s for the -700s. Aggregate funding needed for firm commitments, as of June 30, 2003, is approximately $3.4 billion, subject to adjustments for inflation, due as follows: $417 million in 2003, $1.1 billion in 2004, $684 million in 2005, $645 million in 2006, $523 million in 2007, and $95 million thereafter.

The Company has various options available to meet its capital and operating commitments, including cash on hand at June 30, 2003 of $2.2 billion and internally generated funds. The Company has two available unsecured revolving credit facilities from which it can borrow up to $575 million from a group of banks. One of the facilities, for half of the total amount, was renewed for an additional year during April 2003. This facility now expires in April 2004. The other facility, for half of the amount, expires in April 2005. The Company will also consider various borrowing or leasing options to maximize earnings and supplement cash requirements.

The Company currently has outstanding shelf registrations for the issuance of up to $1.0 billion in public debt securities and pass through certificates, which it may utilize for aircraft financings in the future.

Forward looking statements

Some statements in this Form 10-Q (or otherwise made by the Company or on the Company's behalf from time to time in other reports, filings with the Securities and Exchange Commission, news releases, conferences, World Wide Web postings or otherwise) which are not historical facts may be "forward-looking statements" within the meaning of Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements about Southwest's estimates, expectations, beliefs, intentions or strategies for the future, and the assumptions underlying these forward-looking statements. Southwest uses the words "anticipates," "believes," "estimates," "expects," "intends," "forecasts", "may," "will," "should" and similar expressions to identify these forward-looking statements. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from historical experience or the Company's present expectations. Factors that could cause these differences include, but are not limited to:

- Items directly linked to the September 11, 2001 terrorist attacks, such as the adverse impact of new airline and airport security directives on the


Company's costs and Customer demand for travel, changes in the Transportation Security Administration's scope for managing U.S. airport security, the availability and cost of war-risk and other aviation insurance, including the federal government's provision of third party war-risk coverage, and the possibility of further terrorist attacks or additional incidents that could cause the public to question the safety and/or efficiency of air travel.

- War or other military actions by the U.S. or others.

- Competitive factors, such as fare sales and capacity decisions by the Company and its competitors, changes in competitors' flight schedules, mergers and acquisitions, codesharing programs, and airline bankruptcies.

- General economic conditions, which could adversely affect the demand for travel in general and consumer ticket purchasing habits, as well as decisions by major freight Customers on how they allocate freight deliveries among different types of carriers.

- Factors that could affect the Company's ability to control its costs, such as the results of Employee labor contract negotiations, Employee hiring and retention rates, costs for health care, the largely unpredictable prices of jet fuel, crude oil, and heating oil, the continued effectiveness of the Company's fuel hedges, changes in the Company's overall fuel hedging strategy, capacity decisions by the Company and its competitors, unscheduled required aircraft airframe or engine repairs and regulatory requirements, changes in commission policy, availability of capital markets, and future financing decisions made by the Company.

- Disruptions to operations due to adverse weather conditions and air traffic control-related constraints.

Caution should be taken not to place undue reliance on the Company's forward-looking statements, which represent the Company's views only as of the date this report is filed. The Company undertakes no obligation to update publicly or revise any forward-looking statement, whether as a result of new information, future events or otherwise.


Item 3. Quantitative and Qualitative Disclosures About Market Risk

See Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the Company's Annual Report on Form 10-K for the year ended December 31, 2002 and Note 4 to the unaudited condensed consolidated financial statements.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures designed to ensure that it is able to collect the information it is required to disclose in the reports it files with the Securities and Exchange Commission (SEC), and to process, summarize and disclose this information within the time periods specified in the rules of the SEC. Based on an evaluation of the Company's disclosure controls and procedures as of the end of the period covered by this report conducted by the Company's management, with the participation of the Chief Executive and Chief Financial Officers, the Chief Executive and Chief Financial Officers believe that these controls and procedures are effective to ensure that the Company is able to collect, process and disclose the information it is required to disclose in the reports it files with the SEC within the required time periods.

Internal Control over Financial Reporting. During the period covered by this report, there have been no changes in the Company's internal control over financial reporting that have materially affected or are reasonably likely to materially affect the Company's internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

The Company is subject to various legal proceedings and claims arising in the ordinary course of business, including, but not limited to, examinations by the Internal Revenue Service (IRS). The IRS regularly examines the Company's federal income tax returns and, in the course of which, proposes adjustments to the Company's federal income tax liability reported on such returns. It is the Company's practice to vigorously contest those proposed adjustments that it deems lacking of merit.

The Company's management does not expect that the outcome in any of its currently ongoing legal proceedings or the outcome of any proposed adjustments presented to date by the IRS, individually or collectively, will have a material adverse effect on the Company's financial condition, results of operations or cash flow.


Item 2. Changes in Securities and Use of Proceeds

Recent Sales of Unregistered Securities

During the second quarter of 2003, Herbert D. Kelleher exercised unregistered options to purchase Southwest Airlines Co. Common Stock as follows:

Number of Shares      Option      Date of            Date of
    Purchased          Price      Exercise        Option Grant


     51,947            $1.00    June 16, 2003    January 1, 1992
     54,630            $2.24    June 16, 2003    January 1, 1992
    287,173            $1.00    June 16, 2003    January 1, 1996
    506,250            $4.64    June 16, 2003    January 1, 1996

The issuance of the above shares to Mr. Kelleher was exempt from the registration provisions of the Securities Act of 1933, as amended (the "Act"), by reason of the provision of Section 4(2) of the Act because, among other things, of the limited number of participants in such transactions and the agreement and representation of Mr. Kelleher that he was acquiring such securities for investment and not with a view to distribution thereof. The certificates representing the shares issued to Mr. Kelleher contain a legend to the effect that such shares are not registered under the Act and may not be transferred except pursuant to a registration statement that has become effective under the Act or to an exemption from such registration. The issuance of such shares was not underwritten.

Item 3. Defaults upon Senior Securities

None

Item 4. Submission of Matters to a Vote of Security Holders

The Company's Annual Meeting of Shareholders was held in Dallas, Texas on Wednesday, May 14, 2003. The following matters were voted on at the meeting:

(i) The following nominees were elected to the Company's Board of Directors to hold office for a term expiring in 2004: Herbert D. Kelleher: 475,891,455 shares voted for and 145,427,997 shares withheld; Rollin W. King: 529,654,941 shares voted for and 86,124,789 shares withheld; June M. Morris: 464,861,397 shares voted for and 156,458,055 shares withheld. There were no broker non- votes on this matter.

The following nominees were elected to the Company's Board of Directors to hold office for a term expiring in 2006: William H. Cunningham: 481,283,710 shares voted for and 140,035,742 shares withheld; Nancy B. Loefler: 595,327,252 shares voted for and 25,992,200 shares withheld; Louis E. Caldera: 600,025,769 shares voted for and 21,293,683 shares withheld. There were no broker non-votes on this matter.


Additionally, the following current directors of the Company continued to serve as directors as of the Annual Meeting: Colleen C. Barrett, C. Webb Crockett, William P. Hobby, Travis C. Johnson, John T. Montford, and James F. Parker.

(ii) A shareholder proposal related to shareholder right to vote on the Company's shareholder rights plan was considered. A total of 349,986,828 shares were voted for the proposal, 188,729,885 shares were voted against the proposal and 3,741,301 shares abstained from voting. There were 78,861,438 broker non-votes on this matter.

Item 5. Other Information

None

Item 6. Exhibits and Reports on Form 8-K

a) Exhibits

10.1 Amendment No. 3 to Southwest Airlines Co. Profit Sharing Plan
10.2 Amendment No. 3 to Southwest Airlines Co. 401(k) Plan 10.3 2003 Non-Qualified Stock Option Plan
10.4 Amendment No. 1 to 2000 Aircraft Appearance Technicians Non- Qualified Stock Option Plan
10.5 Amendment No. 1 to 2000 Stock Clerks Non-Qualified Stock Option Plan
10.6 Amendment No. 1 to 2000 Flight Simulator Technicians Non- Qualified Stock Option Plan
10.7 First Amendment to 364-Day Competitive Advance and Revolving Credit Facility Agreement among Southwest Airlines Co., the banks party thereto, and JPMorgan Chase Bank, as Administrative Agent, dated as of April 22, 2003
10.8 Supplemental Agreements Nos. 25, 26, 27, 28 and 29 to Purchase Agreement No. 1810, dated January 19, 1994 between The Boeing Company and Southwest Pursuant to 17 CFR 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission.
99.1 Certifications Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
99.2 Certifications Pursuant to 18 U.S.C. Section 1350, as adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

b) Reports on Form 8-K

On July 21, 2003, Southwest filed a current report on Form 8-K to furnish the Company's public announcement of its second quarter 2003 earnings.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

SOUTHWEST AIRLINES CO.

July 22, 2003                               By   /s/ Gary C. Kelly

                                                     Gary C. Kelly
                                                     Executive Vice President-
                                                     Chief Financial Officer
                                                    (Principal Financial and
                                                     Accounting Officer)


EXHIBIT INDEX

Exhibit No.                               Description

Exhibit 10.1      -     Amendment No. 3 to Southwest Airlines Co. Profit
                        Sharing Plan.

Exhibit 10.2      -     Amendment No. 3 to Southwest Airlines Co. 401(k) Plan.

Exhibit 10.3      -     2003 Non-Qualified Stock Option Plan.

Exhibit 10.4      -     Amendment No. 1 to 2000 Aircraft Appearance Technicians
                        Non-Qualified Stock Option Plan.

Exhibit 10.5      -     Amendment No. 1 to 2000 Stock Clerks Non-Qualified
                        Stock Option Plan.

Exhibit 10.6      -     Amendment No. 1 to 2000 Flight Simulator Technicians
                        Non-Qualified Stock Option Plan.

Exhibit 10.7      -     First Amendment to 364-Day Competitive Advance and
                        Revolving Credit Facility Agreement among Southwest
                        Airlines Co., the banks party thereto, and JPMorgan
                        Chase Bank, as Administrative Agent, dated as of April
                        22, 2003.

Exhibit 10.8      -     Supplemental Agreements Nos. 25, 26, 27, 28 and 29 to
                        Purchase Agreement No. 1810, dated January 19, 1994
                        between The Boeing Company and Southwest.
                        Pursuant to 17 CFR 240.24b-2, confidential information
                        has been omitted and has been filed separately with the
                        Securities and Exchange Commission pursuant to a
                        Confidential Treatment Application filed with the
                        Commission.

Exhibit 99.1      -     Certifications Pursuant to Section 302 of the
                        Sarbanes-Oxley Act of 2002

Exhibit 99.2      -     Certifications Pursuant to 18 U.S.C. Section 1350, as
                        adopted Pursuant to Section 906 of the Sarbanes-Oxley
                        Act of 2002


Exhibit 10.1

AMENDMENT NO. 3 TO THE
SOUTHWEST AIRLINES CO. PROFIT SHARING PLAN

Pursuant to the authority of the Board of Directors of Southwest Airlines Co., and the provisions of Article XVII thereof, the Southwest Airlines Co. Profit Sharing Plan is hereby amended, effective as of January 1, 2001, in the following respect only:

Article II, Subsection 2.1(c), the first sentence, is hereby amended to read as follows:

"(c) Annual Compensation: The total amounts paid by the Company or any Eligible Affiliate to an Employee as remuneration for personal services rendered during each Plan Year, including expense allowances (to the extent includible in the gross income of the Employee) and any amounts not includible in the gross income of the Employee pursuant to Sections 125, 402(g)(1) or 132(f)(4) of the Code, but excluding director's fees, expense reimbursements and nontaxable expense allowances, prizes and awards, items of imputed income, contributions made by the Company under this Plan or any other employee benefit plan or program it maintains, such as group insurance, hospitalization or like benefits, amounts realized or recognized from qualified or nonqualified stock options or when restricted stock or property held by the Employee either becomes freely transferable or is no longer subject to a substantial risk of forfeitures, and amounts, if any, paid to an Employee in lieu of a Company Contribution to this Plan in the event that such Company Contribution would constitute an annual addition, as defined in Section 415(c)(2) of the Code, in excess of the limitations under Section 415(c) of the Code. "

IN WITNESS WHEREOF, and as conclusive evidence of the adoption of the foregoing instrument comprising Amendment No. 3 to the Southwest Airlines Co. Profit Sharing Plan, the Company has caused these presents to be duly executed in its name and behalf by its proper officers thereunto duly authorized the 10th day of February, 2003.

SOUTHWEST AIRLINES CO.

ATTEST:

/s/ Deborah Ackerman              By: /s/ James F. Parker
Deborah Ackerman                          James F. Parker
Assistant Secretary                       Chief Executive Officer

STATE OF TEXAS          Section
                        Section
COUNTY OF DALLAS        Section

SWORN TO AND SUBSCRIBED before me on the 10th day of February, 2003, by James F. Parker.


                                  /s/ Marilyn Strickland
                                  Notary Public in and for the State of Texas

My Commission Expires:

May 31, 2005


Exhibit 10.2

AMENDMENT NO. 3
TO SOUTHWEST AIRLINES CO. 401(k) PLAN

Pursuant to the authority of the Board of Directors of Southwest Airlines Co., and the provisions of Section 17.1 thereof, the Southwest Airlines Co. 401(k) Plan (the "Plan") is hereby amended in the following respects only, effective as of January 1, 1997:

(1) Article IV, Section 4.5, paragraph (a) is hereby amended to read as follows:

"(a) The 'deferral percentage' for each Employee who is then eligible for Salary Reduction Contributions, which shall be the ratio of the amount of such Employee's Salary Reduction Contributions for such Plan Year to the compensation (as defined in Section 2.1(r) hereof) for such Plan Year;"

(2) Article IV, Section 4.6, paragraph (a) is hereby amended to read as follows:

"(a) The 'contribution percentage' for each Employee who is then eligible to receive Company Matching Contributions, which shall be the ratio of the sum of such Employee's Company Matching Contributions for such Plan Year to the Employee's compensation (as defined in Section 2.1(r) hereof) for such Plan Year;"

IN WITNESS WHEREOF, and as conclusive evidence of the adoption of the foregoing instrument comprising Amendment No. 3 to the Southwest Airlines Co.
401(k) Plan, the Company has caused its corporate seal to be affixed hereto and these presents to be duly executed in its name and behalf by its proper officers thereunto duly authorized this 4th day of April, 2003.

SOUTHWEST AIRLINES CO.

                           By:   /s/ James F. Parker
                                     James F. Parker, Chief Executive Officer
ATTEST:


/s/ Deborah Ackerman
Deborah Ackerman, Assistant Secretary

STATE OF TEXAS          Section
                        Section
COUNTY OF DALLAS        Section

BEFORE ME, the undersigned, a Notary Public in and for said County and State, on this 4th day of April, 2003, personally appeared JAMES F. PARKER, to me known to be the identical person who subscribed the name of SOUTHWEST AIRLINES CO., as its CHIEF EXECUTIVE OFFICER to the foregoing instrument and acknowledged to me that he executed the same as his free and voluntary act


and deed and as the free and voluntary act and deed of such organization for the uses and purposes therein set forth.

GIVEN UNDER MY HAND AND SEAL OF OFFICE, the day and year last above written

/s/ Marilyn Strickland
Notary Public in and for the State of Texas

My Commission Expires: May 31, 2005


Exhibit 10.3

SOUTHWEST AIRLINES CO.

2003 NON-QUALIFIED STOCK OPTION PLAN

SOUTHWEST AIRLINES CO., a Texas corporation (the "Company"), hereby formulates and adopts the following 2003 Non-Qualified Stock Option Plan.

1. Purpose. This Plan is to secure for the Company the benefits of the additional incentive inherent in the ownership of its Common Stock by employees of the Company and its subsidiaries who are important to the success and the growth of the Company and its subsidiaries, and to help the Company and its subsidiaries secure and retain the services of such employees.

2. Administration. This Plan shall be administered by an Administrative Committee (the "Committee") consisting of not more than five
(5) persons designated from time to time by the Chief Executive Officer of the Company. Members of the Committee may be removed or replaced at any time by the Chief Executive Officer of the Company. The Administrative Committee shall select one of its members as Chairman and shall adopt such rules and regulations as it shall deem appropriate concerning the holding of its meetings, the transaction of its business and the administration of this Plan. A majority of the whole Committee shall constitute a quorum, and the act of a majority of the members of the Committee present at a meeting at which a quorum is present shall be the act of the Committee; any decision or determination reduced to writing and signed by a majority of the members of the Administrative Committee shall be fully as effective as if made by a majority vote at a meeting duly called and held.

3. Grant of Options; Persons Eligible.

(a) Persons Eligible. The Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, shall have the authority and responsibility, within the limitations of this Plan, to grant options from time to time to Employees of the Company. Only Employees of the Company may be granted options under this Plan; provided that under no circumstances shall Officers or Directors of the Company be eligible to receive options hereunder.

(b) Grant Price. Options shall be granted at an exercise price equal to the fair market value of the Common Stock of the Company on the date of the grant of the option.

4. Definitions. An Employee receiving any option under this Plan is referred to herein as an "Optionee." Any reference herein to the employment of an Optionee with the Company shall include only employment with the Company. The fair market value of the Common Stock on any day shall be the mean between the highest and lowest quoted selling prices of the Common Stock on such day as reported by the primary national stock exchange on which such stock is listed. If no sale shall have been made on that day, or if the Common Stock is not listed on a national exchange at that time, fair market value will be determined by the Committee. If the date of grant is not a business day, the grant price will be calculated using the immediately preceding business day.


5. Stock Subject to Options. Subject to the provisions of paragraph 12, the number of shares of the Company's Common Stock subject at any one time to options, plus the number of such shares then outstanding pursuant to exercises of options, granted under this Plan, shall not exceed 15,000,000 shares. If, and to the extent the options granted under this Plan terminate or expire without having been exercised, new options may be granted with respect to the shares covered by such terminated or expired options; provided that the granting and terms of such new options shall in all respects comply with the provisions of this Plan.

Shares sold or distributed upon the exercise of any option granted under this Plan may be shares of the Company's authorized and unissued Common Stock, shares of the Company's issued Common Stock held in the Company's treasury, or both.

There shall be reserved at all times for sale or distribution under this Plan a number of shares of Common Stock (either authorized and unissued shares or shares held in the Company's treasury, or both) equal to the maximum number of shares which may be purchased or distributed upon the exercise of options granted under this Plan.

Exercise of an Option in any manner shall result in a decrease in the number of shares of Common Stock which may thereafter be available, both for purposes of this Plan and for sale to any one individual, by the number of shares as to which the Option is exercised.

6. Expiration and Termination of the Plan. This Plan will expire ten years from the date this Plan was approved by the Board of Directors of the Company, except as to any options then outstanding under this Plan, which shall remain in effect until they have been exercised or expired.

No modification, extension, renewal or other change in any option granted under this Plan shall be made after the grant of such option unless the same is consistent with the provisions of this Plan.

7. Exercisability and Duration of Options.

(a) Exercisability. Options granted under this Plan shall become exercisable at such times and in such amounts as may be determined by the Compensation Committee of the Board of Directors of the Company at the time of grant, or such other committee as may be appointed by the Board.

(b) Duration. The unexercised portion of any option granted under this Plan shall automatically and without notice terminate and become null and void at the time of the earliest to occur of the following:

(1) The expiration date of this Plan as determined in Paragraph 6 above;

(2) The expiration of three months from the date of termination of the Optionee's employment with the Company (unless such termination was as a result of the circumstances set forth in subparagraph (3) below); provided that if the Optionee shall die during such 3-month period the provisions of subparagraph (3) below shall apply;

(3) The expiration of 12 months from the Optionee's death, if


the Optionee's death occurs either during his employment with the Company or during the three-month period following the date of termination of such employment; or

(4) Such other date as may be determined the Compensation Committee of the Board of Directors of the Company at the time of grant, or such other committee as may be appointed by the Board, but not later than the expiration date of this Plan as determined in Paragraph 6 above .

In the case of subparagraphs (2) and (3) above, the Optionee shall have the right to exercise any Option prior to such expiration to the extent it was exercisable at the date of such termination of employment and shall not have been exercised.

8. Exercise of Options.

(a) Procedure. The option granted herein shall be exercised by the Optionee (or by the person who acquires such options by will or the laws of descent and distribution or otherwise by reason of the death of the Optionee) as to all or part of the shares covered by the option by giving notice of the exercise thereof (the "Notice") to the Company. From time to time the Committee may establish procedures relating to effecting such exercises. No fractional shares shall be issued as a result of exercising an Option.

(b) Payment. In the Notice, the Optionee shall elect whether he or she is to pay for his or her shares in cash or in Common Stock of the Company, or both. If payment is to be made in cash, the Optionee shall deliver to the Company funds in the amount of the exercise price on or before the exercise date. If payment is to be made in Common Stock, (a) it shall be valued at its fair market value on the date of such notice, as determined pursuant to Paragraph 4 hereof; (b) such Common Stock must have been owned by the Optionee for at least six months prior to the exercise date; and (c) the Notice shall be accompanied by documentation as proof of ownership for the number of shares of Common Stock to be used as payment.

(c) Irrevocable Election. The giving of such notice to the Company shall constitute an irrevocable election to purchase the number of shares specified in the notice on the date specified in the notice.

(d) Withholding Taxes. To the extent that the exercise of any Option granted pursuant to this Plan or the disposition of shares of Common Stock acquired by exercise of an Option results in compensation income to the Optionee for federal or state income tax purposes, the Optionee shall deliver to the Company at the time of such exercise or disposition such amount of money as the Company may require to meet its obligation under applicable tax laws or regulations, and, if the Optionee fails to do so, the Company is authorized to (a) withhold delivery of certificates upon exercise and (b) withhold from remuneration then or thereafter payable to Optionee any tax required to be withheld by reason of such resulting compensation income.

(e) Delivery of Shares. The Company shall cause shares to be delivered to the Optionee (or the person exercising the Optionee's options in the event of death) as soon as practicable after the exercise date.

9. Nontransferability of Options. No option granted under this Plan or any right evidenced thereby shall be transferable by the Optionee other


than by will or the laws of descent and distribution. During the lifetime of an Optionee, only the Optionee (or his or her guardian or legal representative) may exercise his or her options.

In the event of the Optionee's death during his or her employment with the Company, or during the three-month period following the date of termination of such employment, the Optionee's options shall thereafter be exercisable by his or her executor or administrator, or by the person who acquires such options by will or the laws of descent and distribution or otherwise by reason of the death of the Optionee.

10. Rights of Optionee. Neither the Optionee nor his or her executors, administrators, or legal representatives shall have any of the rights of a Shareholder of the Company with respect to the shares subject to an option granted under this Plan until certificates for such shares shall have been issued upon the exercise of such option.

11. Right to Terminate Employment. Nothing in this Plan or in any option granted under this Plan shall confer upon any Optionee the right to continue in the employment of the Company or affect the right of the Company or any of its subsidiaries to terminate the Optionee's employment at any time.

12. Adjustment Upon Changes in Capitalization, Etc.

(a) The existence of the Plan and the options granted hereunder shall not affect in any way the right or power of the Board of Directors or the Shareholders of the Company to make or authorize any adjustment, recapitalization, reorganization or other change in the Company's capital structure or its business, any merger or consolidation of the Company, any issue of debt or equity securities ahead of or affecting Common Stock or the rights thereof, the dissolution or liquidation of the Company or any sale, lease, exchange or other disposition of all or any part of its assets or business or any other corporate act or proceeding.

(b) The shares with respect to which options may be granted are shares of Common Stock as presently constituted, but if, and whenever, prior to the expiration of an option theretofore granted, the Company shall effect a subdivision or consolidation of shares of Common Stock or the payment of a stock dividend on Common Stock without receipt of consideration by the Company, the number of shares of Common Stock with respect to which such option may thereafter be exercised (i) in the event of an increase in the number of outstanding shares shall be proportionately increased, and the purchase price per share shall be proportionately reduced, and (ii) in the event of a reduction in the number of outstanding shares shall be proportionately reduced, and the purchase price per share shall be proportionately increased. In the event of any such change in the outstanding Common Stock, the aggregate number of shares available under the Plan shall be appropriately adjusted by the Board of Directors of the Company, whose determination shall be conclusive.

(c) If the Company recapitalizes or otherwise changes its capital structure, thereafter upon any exercise of an option theretofore granted the Optionee shall be entitled to purchase under such option, in lieu of the number of shares of Common Stock as to which such option shall then be exercisable, the number and class of shares of stock and securities to which the Optionee would


have been entitled pursuant to the terms of the recapitalization if, immediately prior to such recapitalization, the Optionee had been the holder of record of the number of shares of Common Stock as to which such option is then exercisable. If the Company shall not be the surviving entity in any merger or consolidation (or survives only as a subsidiary of an entity other than a previously wholly-owned subsidiary of the Company) or if the Company is to be dissolved or liquidated, then unless a surviving corporation assumes or substitutes new options for Options then outstanding hereunder (i) the time at which such Options may be exercised shall be accelerated and such Options shall become exercisable in full on or before a date fixed by the Company prior to the effective date of such merger or consolidation or such dissolution or liquidation, and (ii) upon such effective date Options shall expire.

(d) Except as hereinbefore expressly provided, the issuance by the Company of shares of stock of any class or securities convertible into shares of stock of any class, property, labor or services, upon direct sale, upon the exercise of rights or warrants to subscribe therefor, or upon conversion of shares or obligations of the Company convertible into such shares or other securities, and in any case whether or not for fair value, shall not affect, and no adjustment by reason thereof shall be made with respect to, the number of shares of Common Stock subject to options theretofore granted or to be granted or the purchase price per share.

13. Purchase for Investment and Legality. The Optionee, by acceptance of any option granted under this Plan, shall represent and warrant to the Company that the purchase or receipt of shares of Common Stock upon the exercise thereof shall be for investment and not with a view to distribution, provided that such representation and warranty shall be inoperative if, in the opinion of counsel to the Company, a proposed sale or distribution of such shares is pursuant to an applicable effective registration statement under the Securities Act of 1933 or is, without such representation and warranty, exempt from registration under such Act. The Company shall file a Registration Statement on Form S-8 pursuant to the Securities Act of 1933, as amended, covering the shares to be offered pursuant to the Plan and will use its best efforts to maintain such registration at all times necessary to permit holders of options to exercise them.

The obligation of the Company to issue shares upon the exercise of an option shall also be subject as conditions precedent to compliance with applicable provisions of the Securities Act of 1933, the Securities Exchange Act of 1934, state securities laws, rules and regulations under any of the foregoing and applicable requirements of any securities exchange upon which the Company's securities shall be listed.

The Company may endorse an appropriate legend referring to the foregoing restrictions upon the certificate or certificates representing any shares issued or transferred to the Optionee upon the exercise of any option granted under this Plan.

14. Effective Date of Plan; Amendments. This Plan shall become effective upon its adoption by the Board of Directors of the Company.


Exhibit 10.4

AMENDMENT NO. 1 TO
2000 AIRCRAFT APPEARANCE TECHNICIANS
NON-QUALIFIED STOCK OPTION PLAN

SOUTHWEST AIRLINES CO., a Texas corporation (the "Company"), hereby formulates and adopts this Amendment No. 1 to the Company's 2000 Aircraft Appearance Technicians Non-Qualified Stock Option Plan (the "Plan") effective June 25, 2003.

1. The Plan is hereby amended to increase the number of shares of the Company's Common Stock issuable thereunder by 300,000 shares, subject to the provisions of paragraph 12 of the Plan.

2. The first sentence of Paragraph 6 is hereby amended to change the date therein from February 16, 2009 to February 16, 2011.

3. Clause (b)(1) of Paragraph 7 is hereby amended to read as follows:

"(1) February 16, 2009, or, with respect to options granted pursuant to paragraph 3(f), such date as may be designated by the Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, but not later than February 16, 2011."

4. Paragraph 3 is hereby amended to add a new subparagraph (f) to read as follows:

"(f) In addition to the grants currently described in Exhibit A, the Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, may grant options from time to time to persons eligible to receive options under the Plan in such Committee's discretion or as agreed to between the Company and the collective bargaining representative of the eligible employees."

5. Except as expressly amended hereby, the Plan shall remain in full force and effect.


Exhibit 10.5

AMENDMENT NO. 1 TO

2000 STOCK CLERKS NON-QUALIFIED STOCK OPTION PLAN

SOUTHWEST AIRLINES CO., a Texas corporation (the "Company"), hereby formulates and adopts this Amendment No. 1 to the Company's 2000 Stock Clerks Non-Qualified Stock Option Plan (the "Plan") effective June 25, 2003.

1. The first sentence of Paragraph 6 is hereby amended to change the date therein from August 16, 2008 to August 16, 2010.

2. Clause (b)(1) of Paragraph 7 is hereby amended to read as follows:

"(1) August 16, 2008, or, with respect to options granted pursuant to paragraph 3(f), such date as may be designated by the Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, but not later than August 16, 2010.

3. Paragraph 3 is hereby amended to add a new subparagraph (f) to read as follows:

"(f) In addition to the grants currently described in Exhibit A, the Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, may grant options from time to time to persons eligible to receive options under the Plan in such Committee's discretion or as agreed to between the Company and the collective bargaining representative of the eligible employees.".

4. Except as expressly amended hereby, the Plan shall remain in full force and effect.


Exhibit 10.6

AMENDMENT NO. 1 TO
2000 FLIGHT SIMULATOR TECHNICIANS
NON-QUALIFIED STOCK OPTION PLAN

SOUTHWEST AIRLINES CO., a Texas corporation (the "Company"), hereby formulates and adopts this Amendment No. 1 to the Company's 2000 Flight Simulator Technicians Non-Qualified Stock Option Plan (the "Plan") effective June 25, 2003.

1. The first sentence of Paragraph 6 is hereby amended to change the date therein from November 1, 2008 to November 1, 2010.

2. Clause (b)(1) of Paragraph 7 is hereby amended to read as follows:

"(1) November 1, 2008, or, with respect to options granted pursuant to paragraph 3(f), such date as may be designated by the Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, but not later than November 1, 2010.

3. Paragraph 3 is hereby amended to add a new subparagraph (f) to read as follows:

"(f) In addition to the grants currently described in Exhibit A, the Compensation Committee of the Board of Directors of the Company, or such other committee as may be appointed by the Board, may grant options from time to time to persons eligible to receive options under the Plan in such Committee's discretion or as agreed to between the Company and the collective bargaining representative of the eligible employees."

4. Except as expressly amended hereby, the Plan shall remain in full force and effect.


Exhibit 10.7

FIRST AMENDMENT TO
364-DAY COMPETITIVE ADVANCE AND
REVOLVING CREDIT FACILITY AGREEMENT

among

SOUTHWEST AIRLINES CO.,

THE BANKS PARTY HERETO,

CITIBANK, N.A.,
as Syndication Agent,

BANK ONE CORPORATION,
BARCLAYS BANK PLC
and
SUNTRUST BANK,
as Documentation Agents,

and

JPMORGAN CHASE BANK,
as Administrative Agent

Dated as of April 22, 2003

J.P. MORGAN SECURITIES INC.
and
SALOMON SMITH BARNEY INC.,
as Joint Lead Arrangers and Joint Bookrunners


SOUTHWEST AIRLINES CO.
FIRST AMENDMENT TO

364-DAY COMPETITIVE ADVANCE AND REVOLVING CREDIT FACILITY AGREEMENT

FIRST AMENDMENT, dated as of April 22, 2003 (this "Amendment"), to the 364-DAY COMPETITIVE ADVANCE AND REVOLVING CREDIT FACILITY AGREEMENT,
dated as of April 23, 2002 (the "Credit Agreement"), among SOUTHWEST AIRLINES CO. (the "Company"), the Banks party thereto, JPMORGAN CHASE BANK, as Administrative Agent, and the other Agents referred to therein. Capitalized terms used but not defined herein shall have the meanings assigned to them in the Credit Agreement.

The Company has requested that the Credit Agreement be amended as set forth herein and the Banks are willing so to amend the Credit Agreement on the terms and subject to the conditions set forth herein.

Accordingly, in consideration of the mutual agreements herein contained and other good and valuable consideration, the sufficiency and receipt of which are hereby acknowledged, the parties hereto agree as follows:

SECTION 1. Amendments

(a) The definitions of "Banks" and "Commitment" contained in
Section 1.1 of the Credit Agreement are hereby amended and restated in their entirety as follows:

"Banks" means those banks and other lenders signatory hereto and other banks or lenders which from time to time become party hereto pursuant to the provisions of this Agreement.

"Commitment" means, with respect to each Bank, the obligation of such Bank to make Loans in the aggregate principal and/or face amount set forth opposite the name of such Bank on Schedule I to the First Amendment to this Agreement, as such amount may be permanently terminated or reduced from time to time pursuant to Section 2.6, Section 2.13(d) and Section 6.2, and as such amount may be increased or reduced from time to time by assignment or assumption pursuant to Section 2.13(d) and Section 8.11(c). The Commitments shall automatically and permanently terminate on the Termination Date.

(b) The date "December 31, 2001" contained in the definition of "Current Financials" in Section 1.1 of the Credit Agreement is hereby changed to "December 31, 2002".

(c) The date "April 22, 2003" contained in the definition of "Original Termination Date" in Section 1.1 of the Credit Agreement is hereby changed to "April 20, 2004".

(d) The date "December 31, 2001" contained in Section 4.2 of the Credit Agreement is hereby changed to "December 31, 2002".

SECTION 2. Representations and Warranties. The Company represents and warrants to each of the Banks that, as of the First Amendment Effective Date (as defined below) after giving effect to the amendments provided for herein, (a) the representations and warranties set forth in the


Credit Agreement are true and correct, except for any representation and warranty which is expressly made as of an earlier date, which representation and warranty shall have been true and correct as of such earlier date and (b) no Default or Event of Default has occurred and is continuing.

SECTION 3. New Banks. It is understood that any Person listed on Schedule I hereto that is not already a "Bank" shall be deemed to be a "Bank" for all purposes of this Amendment and shall become a "Bank" for all purposes of the Credit Agreement by executing this Amendment.

SECTION 4. Effectiveness. This Amendment shall become effective on April 22, 2003 (the "First Amendment Effective Date"); provided that, on or prior to such date, (a) the Administrative Agent (or its counsel) shall have received copies hereof that, when taken together, bear the signatures of the Company and each of the Banks and (b) the Administrative Agent shall have received from the Company, for the account of each Bank, an upfront fee in the amount of 0.06% of each Bank's Commitment set forth on Schedule I hereto.

SECTION 5. Applicable Law. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

SECTION 6. No Other Amendments. Except as expressly set forth herein, this Amendment shall not by implication or otherwise limit, impair, constitute an amendment of, or otherwise affect the rights and remedies of any party under, the Credit Agreement, or alter, modify, amend or in any way affect any of the terms, conditions, obligations, covenants or agreements contained in the Credit Agreement, all of which are ratified and affirmed in all respects and shall continue in full force and effect.

SECTION 7. Counterparts. This Amendment may be executed in two or more counterparts, each of which shall constitute an original, but all of which when taken together shall constitute but one contract. Delivery of an executed counterpart of a signature page of this Amendment by facsimile transmission shall be as effective as delivery of a manually executed counterpart of this Amendment.

IN WITNESS WHEREOF, the Company and the undersigned Banks have caused this Amendment to be duly executed by their duly authorized officers, all as of the date first above written.

SOUTHWEST AIRLINES CO.

By/s/Laura Wright
  Name: Laura Wright
  Title: VP-Treasurer

Acknowledged by:

JPMORGAN CHASE BANK, as Administrative Agent

By/s/Matthew H. Massie
  Name: Matthew H. Massie
  Title: Managing Director


Signature Page to the First Amendment dated as of April 22, 2003 to the Southwest Airlines Co. 364-Day Competitive Advance and Revolving Credit Facility Agreement

To approve the First Amendment:

Name of Bank: Barclays Bank PLC

By/s/John Giannone
  Name: John Giannone
  Title: Director


Exhibit 10.8

Supplemental Agreement No. 25

to

Purchase Agreement No. 1810

between

THE BOEING COMPANY

and

SOUTHWEST AIRLINES CO.

Relating to Boeing Model 737-7H4 Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of December 21, 2002, by and between THE BOEING COMPANY, a Delaware corporation with its principal offices in Seattle, Washington, (Boeing) and SOUTHWEST AIRLINES CO., a Texas corporation with its principal offices in Dallas, Texas (Buyer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 1810 dated January 19, 1994, relating to Boeing Model 737-7H4 aircraft (the Agreement) and;

WHEREAS, Boeing ***and;

WHEREAS, Boeing and Buyer have agreed to accelerate Block T Aircraft, one (1) in June 2004 and one (1) in July 2004 to become two (2) in January 2004 and;

WHEREAS, Boeing and Buyer have agreed to slide two (2) Block T Aircraft from July 2004 to one (1) each in September 2004 and October 2004 and;

***Pursuant to 17 CFR 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission.

P.A. No. 1810 SA-25-1
K/SWA


WHEREAS, Boeing and Buyer have agreed to slide Block M Option Aircraft, three (3) in March 2004 and two (2) in April 2004 to become one (1) September 2004, two (2) November 2004 and two (2) December 2004.

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties agree to amend the Agreement as follows:

1. The Table of Contents of the Agreement is deleted in its entirety and a new Table of Contents is attached hereto and incorporated into the Agreement by this reference.

2. Article 2, entitled "Delivery, Title and Risk of Loss," is deleted in its entirety and replaced by a new Article 2. Such new pages 2-1, 2-2, 2-3 and 2-4 are attached hereto and incorporated into the Agreement by this reference.

3. Article 3, entitled "Price of Aircraft", is deleted in its entirety and replaced by a new Article 3. Such new pages 3-1, 3-2, 3-3, 3-4, 3-5 and 3-6 are attached hereto and incorporated into the Agreement by this reference.

4. Letter Agreement No. 6-1162-RLL-933R15 entitled "Option Aircraft," is deleted in its entirety and replaced by a new Letter Agreement No. 6-1162- RLL-933R16 which is attached hereto and is incorporated into the Agreement by this reference. NOTE - Buyer now has six (6) 'banked' Rollover OptionAircraft as a result of the option exercises covered by Supplemental Agreement No. 21, 23, and 24 that may be converted to Option Aircraft at a future date subject to the terms of Letter Agreement No. 6-1162-RLL-933R16.

5. Letter Agreement No. 6-1162-KJJ-055 entitled "Structural Matters," is deleted in its entirety and replaced by a new Letter Agreement No. 6-1162-KJJ -055R1 which is attached hereto and is incorporated into the Agreement by this reference.

6. All references in the Letter Agreements associated with Purchase Agreement No. 1810 shall be deemed to refer to the purchase by Buyer of two hundred forty-two(242) Model 737-7H4 Aircraft, eighty-one (81) Model 737-7H4 Option Aircraft and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft, to the extent such reference is not specifically addressed herein.

P.A. No. 1810 SA-25-2
K/SWA


7. Boeing will provide Buyer ***

The Agreement will be deemed to be supplemented to the extent herein provided and as so supplemented will continue in full force and effect.

EXECUTED IN DUPLICATE as of the day and year first above written.

THE BOEING COMPANY SOUTHWEST AIRLINES CO.

By:   /s/ J.A. McGarvey             By: /s/ Laura Wright

Its:    Attorney-In-Fact            Its: VP Finance & Treasurer

P.A. No. 1810 iii
K/SWA SA-25


                                  TABLE OF CONTENTS


                                                            Page          SA
                                                          Number      Number

ARTICLES

1.    Subject Matter of Sale                                 1-1       SA-13

2.    Delivery, Title and Risk of Loss                       2-1       SA-25

3.    Price of Aircraft                                      3-1       SA-25

4.    Taxes                                                  4-1

5.    Payment                                                5-1

6.    Excusable Delay                                        6-1

7.    Changes to the Detail Specification                    7-1        SA-1

8.    Federal Aviation Requirements and
      Certificates and Export License                        8-1

9.    Representatives, Inspection,
      Flights and Test Data                                  9-1

10.   Assignment, Resale or Lease                           10-1

11.   Termination for Certain Events                        11-1

12.   Product Assurance; Disclaimer and
      Release; Exclusion of Liabilities;
      Customer Support; Indemnification
      and Insurance                                         12-1

13.   Buyer Furnished Equipment and
      Spare Parts                                           13-1

14.   Contractual Notices and Requests                      14-1

15.   Miscellaneous                                         15-1

P.A. No. 1810 iv
K/SWA SA-25


                                TABLE OF CONTENTS CON'T


                                                                            SA
                                                                        Number

EXHIBITS

A     Aircraft Configuration                                           SA-13

B     Product Assurance Document                                        SA-1

C     Customer Support Document

D     Price Adjustments Due to
      Economic Fluctuations - Aircraft                                 SA-13

E     Buyer Furnished Equipment
      Provisions Document

F     Defined Terms Document

LETTER AGREEMENTS

1810-1 Waiver of Aircraft Demonstration Flight

P.A. No. 1810 ii
K/SWA SA-25


                                 TABLE OF CONTENTS CON'T


                                                                          SA
                                                                      Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-932R2  Promotional Support                                  SA-13

6-1162-RLL-933R16 Option Aircraft                                      SA-25

6-1162-RLL-934R3  Disclosure of Confidential                           SA-14
                    Information

6-1162-RLL-935R1  Performance Guarantees                                SA-1

6-1162-RLL-936R4  Certain Contractual Matters                           SA-4

6-1162-RLL-937    Alternate Advance Payment Schedule

6-1162-RLL-938    ***

6-1162-RLL-939R1  Certification Flight Test Aircraft                    SA-1

6-1162-RLL-940R1  Training Matters                                      SA-1

6-1162-RLL-941R2  Other Matters                                        SA-13

6-1162-RLL-942    Open Configuration Matters

6-1162-RLL-943R1  Substitution Rights                                   SA-6

6-1162-RLL-944    Airframe Maintenance Material Cost
                  Protection Program

6-1162-RLL-945    Comparison of 737-7H4 and 737-3H4
                  Block Fuel Burn

6-1162-RLL-1855R3 Additional Contractual Matters                        SA-4

6-1162-RLL-1856   ***                                                   SA-1

6-1162-RLL-1857   Service Ready Validation Program                      SA-1
                  Field Test

6-1162-RLL-1858R1 Escalation Matters                                    SA-4

P.A. No. 1810 iii
K/SWA SA-25


                                 TABLE OF CONTENTS CON'T



                                                                          SA
                                                                      Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-2036   Amortization of Costs for
                  Customer Unique Changes                               SA-1

6-1162-RLL-2037   Reconciliation of the Aircraft                        SA-1
                  Basic Price

6-1162-RLL-2073   Maintenance Training Matters                          SA-1

6-1162-KJJ-054    Business Matters                                     SA-13

6-1162-KJJ-055R1  Structural Matters                                   SA-25

6-1162-KJJ-056    Noise and Emission Matters                           SA-13

6-1162-KJJ-057    Product Development Matters                          SA-13

6-1162-KJJ-058    Additional Substitution Rights                       SA-13

6-1162-KJJ-150    Flight Control Computer & Mode                       SA-14
                  Control Panel Spares Matter

6-1162-MSA-185R3  Delivery Change Contractual                          SA-21
                  Matters

P.A. No. 1810 iv
K/SWA SA-25


ARTICLE 2. Delivery, Title and Risk of Loss.

2.1 Time of Delivery. The Aircraft will be delivered to Buyer by Boeing, assembled and ready for flight and Buyer will accept delivery of the Aircraft, in accordance with the following schedule:

                       Month and Year
                      of Delivery        Quantity of Aircraft

                             Block E Aircraft
                     December 2000             Two (2)
                     January 2001              One (1)
                     February 2001             One (1)
                     March 2001                Two (2)
                     June 2001                 Three (3)
                     September 2001            Three (1)

                             Block F Aircraft
                     October 1998              One (1)
                     November 1998             Two (2)
                     December 1998             Two (2)

                             Block G Aircraft
                     March 1999                Two (2)

                             Block H Aircraft
                     June 1999                 Two (2)
                     July 1999                 One (1)
                     August 1999               One (1)
                     September 1999            Two (2)
                     October 1999              One (1)
                     March 2000                One (1)
                     April 2000                Two (2)
                     September 2000            One (1)
                     October 2000              Two (2)
                     March 2001                Two (2)
                     April 2001                One (1)
                     October 2001              Three (3)

                             Block I Aircraft
                     November 2001             Two (2)
                     December 2001             One (1)
                     January 2002              One (1)
                     March 2002                Four (4)
                     April 2002                Two (2)
                     December 2002             Two (2)
                     May 2003                  One (1)
                     June 2003                 Two (2)
                     July 2003                 One (1)
                     September 2003            Two (2)
                     October 2003              Two (2)

P.A. No. 1810                      2-1
K/SWA                                                             SA-25

                             Block J Aircraft
                     November 2002             One (1)
                     December 2002             One (1)
                     November 2003             Two (2)
                     December 2003             Two (2)
                     March 2004                One (1)

                             Block K Aircraft
                     March 2004                One (1)
                     April 2004              Three (3)
                     May 2004                  One (1)

                             Block L Aircraft
                     October 1999             One (1)
                     November 1999            Two (2)
                     December 1999            One (1)
                     June 2000              Three (3)
                     July 2000              Three (3)
                     September 2000           One (1)
                     October 2000             One (1)
                     November 2000           Four (4)
                     December 2000            One (1)
                     January 2001             One (1)
                     February 2001            One (1)
                     July 2001                One (1)
                     September 2001           One (1)
                     October 2001             One (1)
                     March 2003               One (1)
                     April 2003               One (1)
                     July 2003                One (1)
                     August 2003              Two (2)

                             Block T Aircraft
                     November 2001            One (1)
                     February 2002            One (1)
                     January 2004             Two (2)
                     May 2004                 One (1)
                     June 2004              Three (3)
                     July 2004                One (1)
                     August 2004              Two (2)
                     September 2004         Three (3)
                     October 2004             One (1)
                     November 2004            One (1)


P.A. No. 1810                         2-2
K/SWA                                                            SA-25
                     December 2004            One (1)
                     January 2005            Five (5)
                     February 2005            Two (2)
                     March 2005               One (1)
                     April 2005               Two (2)
                     May 2005                 One (1)
                     June 2005              Three (3)
                     July 2005                Two (2)
                       August 2005              One (1)
                     September 2005           Two (2)
                     October 2005             One (1)
                     November 2005            Two (2)
                     December 2005            Two (2)
                     February 2006           Four (4)
                     May 2006               Three (3)
                     June 2006               Four (4)
                     July 2006                One (1)
                     August 2006            Three (3)
                     September 2006         Three (3)
                     November 2006            Two (2)
                     December 2006            Two (2)
                     January 2007             Two (2)
                     February 2007          Three (3)
                     March 2007               Two (2)
                     April 2007               Two (2)
                     May 2007                 Two (2)
                     June 2007                Two (2)
                     July 2007                Two (2)
                     August 2007              Two (2)
                     September 2007           Two (2)
                     October 2007             Two (2)
                     November 2007            Two (2)
                     December 2007            Two (2)
                     January 2008             One (1)
                     February 2008            One (1)
                     March 2008               One (1)
                     April 2008               One (1)
                     May 2008                 One (1)
                     June 2008                One (1)

2.2 Notice of Target Delivery Date. Boeing will give Buyer notice of the Target Delivery Date of the Aircraft approximately 30 days prior to the scheduled month of delivery.

2.3 Notice of Delivery Date. If Boeing gives Buyer at least 7 days' notice of the delivery date of the Aircraft, and an Aircraft delivery is delayed beyond such delivery date due to the responsibility of Buyer, Buyer will reimburse Boeing for all costs incurred by Boeing as a result of such delay, including amounts for storage, insurance, Taxes, preservation or protection of the Aircraft and interest on payments due.

P.A. No. 1810 2-3
K/SWA SA-25


2.4 Place of Delivery. The Aircraft will be delivered at an airport facility selected by Boeing in the State of Washington, unless mutually agreed otherwise.

2.5 Title and Risk of Loss. Title to and risk of loss of an Aircraft will pass from Boeing to Buyer upon delivery of such Aircraft, but not prior thereto.

2.6 Bill of Sale. Upon delivery of an Aircraft Boeing will deliver to Buyer a bill of sale conveying good title to such Aircraft, free of all liens, claims, charges and encumbrances of every kind whatsoever, and such other appropriate documents of title as Buyer may reasonably request.

P.A. No. 1810 2-4
K/SWA SA-25


ARTICLE 3. Price of Aircraft.

3.1 Definitions.

3.1.1 Special Features are the features incorporated in Exhibit A which have been selected by Buyer.

3.1.2 Base Aircraft Price is the Aircraft Basic Price excluding the price of Special Features.

3.1.3 Aircraft Basic Price is comprised of the Base Aircraft Price and the price of the Special Features.

3.1.4 Economic Price Adjustment is the adjustment to the Aircraft Basic Price (Base Aircraft and Special Features) as calculated pursuant to Exhibit D or Exhibit D-1 as applicable.

3.1.5 Aircraft Price is the total amount Buyer is to pay for the Aircraft at the time of delivery.

3.2 Aircraft Basic Price.

The Aircraft Basic Price for Block A through L Aircraft, is expressed in July 1992 dollars; the Aircraft Basic Price for Block T Aircraft, is expressed in July 1999 dollars; as set forth below:

                     Base                Special               Aircraft
                     Aircraft Price      Features              Basic Price
Block A, B, C,       ***                 ***                   ***
D & E Aircraft
Block F & G          ***                 ***                   ***
Aircraft
Block H              ***                 ***                   ***
Aircraft
Block I              ***                 ***                   ***
Aircraft
Block J              ***                 ***                   ***
Aircraft
Block K              ***                 ***                   ***
Aircraft
Block L              ***                 ***                   ***
Aircraft
Block T              ***                 ***                   ***
Aircraft

P.A. No. 1810
K/SWA SA-25


3.3 Aircraft Price. The Aircraft Price will be established at the time of delivery of such Aircraft to Buyer and will be the sum of:

3.3.1 the Aircraft Basic Price, which is *** for the Block A, B, C, D and E Aircraft, *** for the Block F and G Aircraft, *** for the Block H Aircraft, *** for the Block I Aircraft, *** for the Block J Aircraft, *** for the Block K Aircraft and *** for the Block L Aircraft; *** for the Block T Aircraft; plus

3.3.2 the Economic Price Adjustments for the Aircraft Basic Price, as calculated pursuant to the formulas set forth in Exhibit D (Price Adjustments Due to Economic Fluctuations - Aircraft) for Aircraft Block A through L, and in Exhibit D-1 (Price Adjustments Due to Economic Fluctuations
- Aircraft) for Aircraft Block T; plus

3.3.3 other price adjustments made pursuant to this Agreement or other written agreements executed by Boeing and Buyer.

3.4 Advance Payment Base Price.

3.4.1 Advance Payment Base Price. For advance payment purposes, the following estimated delivery prices of the Aircraft (Advance Payment Base Price) have been established, using currently available forecasts of the escalation factors used by Boeing as of the date of signing this Agreement. The Advance Payment Base Price of each Aircraft is set forth below:

Month and Year of Advance Payment Base Scheduled Delivery Price per Aircraft

Block A Aircraft*** November 1997
October 1997

Block B Aircraft*** January 1998
February 1998
March 1998
April 1998
May 1998
June 1998
July 1998
September 1998

P.A. No. 1810                         3-2
K/SWA                                                               SA-25

                                Block C Aircraft***
                  February 1999
                  May 1999
                  July 1999
                  August 1999
                  September 1999

                                Block D Aircraft***
                  November 1999
                  December 1999
                  January 2000
                  March 2000
                  July 2000
                  August 2000

                                Block E Aircraft***
                  December 2000
                  January 2001
                  February 2001
                  March 2001
                  June 2001
                  September 2001

                                Block F Aircraft***
                  October 1998
                  November 1998
                  December 1998

                                Block G Aircraft***
                  March 1999

                                Block H Aircraft***
                  June 1999
                  July 1999
                  August 1999
                  September 1999
                  October 1999
                  March 2000
                  April 2000
                  September 2000
                  October 2000
                  March 2001
                  April 2001
                  October 2001

                                Block I Aircraft***


P.A. No. 1810                        3-3
K/SWA                                                              SA-25

                  November 2001
                  December 2001
                  January 2002
                  March 2002
                  April 2002
                  December 2002
                  May 2003
                  June 2003
                  July 2003
                  September 2003
                  October 2003

                                Block J Aircraft***
                  November 2002
                  December 2002
                  November 2003
                  December 2003
                  March 2004

                                Block K Aircraft***
                  March 2004
                  April 2004
                  May 2004

                                Block L Aircraft***
                  October 1999
                  November 1999
                  December 1999
                  June 2000
                  July 2000
                  September 2000
                  October 2000
                  November 2000
                  December 2000
                  January 2001
                  February 2001
                  July 2001
                  September 2001
                  October 2001
                  March 2003
                  April 2003
                  July 2003
                  August 2003

                                Block T Aircraft***
                  November 2001
                  February 2002
                  January 2004
                  May 2004


P.A. No. 1810                       3-4
K/SWA                                                          SA-25

                  June 2004
                  July 2004
                  August 2004
                  September 2004
                  October 2004
                  November 2004
                  December 2004
                  January 2005
                  February 2005
                  March 2005
                  April 2005
                  May 2005
                  June 2005
                  July 2005
                  August 2005
                  September 2005
                  October 2005
                  November 2005
                  December 2005
                  February 2006
                  May 2006
                  June 2006
                  July 2006
                  August 2006
                  September 2006
                  November 2006
                  December 2006
                  January 2007
                  February 2007
                  March 2007
                  April 2007
                  May 2007
                  June 2007
                  July 2007
                  August 2007
                  September 2007
                  October 2007
                  November 2007
                  December 2007
                  January 2008
                  February 2008
                  March 2008
                  April 2008
                  May 2008
                  June 2008

3.4.2 Adjustment of Advance Payment Base Prices - Long-Lead Aircraft. For Aircraft scheduled for delivery 36 months or more after the date of this Agreement, the Advance Payment Base Prices appearing in Article 3.4.1 will be used to determine the amount of the first advance payment to be made by Buyer on the Aircraft. No later than 25 months before the scheduled month of delivery of each affected Aircraft, Boeing will increase or decrease the Advance Payment Base Price of such Aircraft as required to reflect the effects of (i) any adjustments in the Aircraft Basic Price pursuant to this Agreement and (ii) the then-current forecasted escalation factors used by Boeing. Boeing will provide the adjusted Advance Payment Base Prices for

P.A. No. 1810 3-5
K/SWA SA-25


each affected Aircraft to Buyer, and the advance payment schedule will be considered amended to substitute such adjusted Advance Payment Base Prices.

P.A. No. 1810                      3-6
K/SWA                                                       SA-25

6-1162-RLL-933R16


Southwest Airlines Co.
P.O. Box 36611 - Love Field
Dallas, Texas  75235

Subject:      Letter Agreement No. 6-1162-RLL-933R16 to
              Purchase Agreement No. 1810 -
              Option Aircraft

This Letter Agreement amends Purchase Agreement No. 1810 dated as of January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737-7H4 aircraft (Aircraft).

All terms used and not defined herein will have the same meaning as in the Agreement.

In consideration of the purchase by Buyer of the Aircraft, Boeing hereby agrees to manufacture and sell to Buyer and Buyer shall have the option to purchase (Option or Options) eighty-one (81) additional Model 737-7H4 aircraft as described in paragraph 1 of Attachment A hereto (Option Aircraft) and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft (Rollover Option Aircraft), subject to the terms and conditions set forth below.

1. Delivery of Option Aircraft.

The Option Aircraft will be delivered to Buyer during or before the months set forth in the following schedule:

<Section>
                  Number of   Option
Month and Year    Option      Aircraft
of Delivery       Aircraft    Block
June 2004         Two (2)       M
July 2004         Two (2)       M
September 2004    One (1)       M
October 2004      Four (4)      M
November 2004     Two (2)       M
December 2004     Two (2)       M

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 2

                  Number of   Option
Month and Year    Option      Aircraft
of Delivery       Aircraft    Block
February 2005     One (1)        N
March 2005        Four (4)       N
April 2005        Two (2)        N
May 2005          One (1)        N
June 2005         One (1)        N
July 2005         One (1)        N
August 2005       One (1)        N
September 2005    Three (3)      N
October 2005      Two (2)        N
November 2005     One (1)        N
December 2005     One (1)        N

January 2006      Two (2)        O
March 2006        Three (3)      O
April 2006        Two (2)        O
May 2006          Two (2)        O
June 2006         One (1)        O
July 2006         Two (2)        O
August 2006       One (1)        O
October 2006      One (1)        O
November 2006     One (1)        O
December 2006     One (1)        O

April 2007        One (1)        P
May 2007          One (1)        P
June 2007         One (1)        P
July 2007         One (1)        P
August 2007       One (1)        P
September 2007    One (1)        P
October 2007      One (1)        P
November 2007     One (1)        P
December 2007     One (1)        P

January 2008      Two (2)        U
February 2008     Three (3)      U
March 2008        Two (2)        U
April 2008        Two (2)        U
May 2008          Two (2)        U
June 2008         Two (2)        U
July 2008         Two (2)        U
August 2008       Two (2)        U
September 2008    Two (2)        U
October 2008      Two (2)        U
November 2008     Two (2)        U
December 2008     Two (2)        U

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 3

2. Delivery of Rollover Option Aircraft.

2.1 The Rollover Option Aircraft will be delivered to Buyer during or before the years set forthin the following schedule:

                                    Option
Year of     Number of               Aircraft
Delivery    Option Aircraft         Block
2007        Twenty (20)                 Q
2008        Twenty (20)                 R
2009        Six (6)                     S
2009-2012   One hundred seventy one     V
            (171)

2.2 The two hundred seventeen (217) Rollover Option Aircraft may be converted into Option Aircraft or firm Aircraft, from time to time, in any of the following ways:

2.2.1 Buyer can exercise any Option for an Option Aircraft described in Article 1 above, and will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each Option exercised. Buyer can elect to convert such Rollover Option Aircraft into an Option Aircraft at any time after converting an Option Aircraft to a firm Aircraft subject to the requirements of Article 2.5.

2.2.2 If Buyer elects not to exercise an Option, at the same time of not exercising such Option Buyer may convert one Rollover Option Aircraft to an Option Aircraft; otherwise, one Rollover Option Aircraft will be deleted for each Option not exercised by Buyer.

2.2.3 Buyer may convert Rollover Option Aircraft directly to firm Aircraft. When Buyer converts one or more Rollover Option Aircraft to firm Aircraft, Buyer will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each converted Rollover Option Aircraft. Buyer can elect to convert such Rollover Option Aircraft to Option Aircraft at any time after converting Rollover Option to firm Aircraft subject to the requirements of Article 2.5.

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 4

2.3 Buyer may not convert Rollover Option Aircraft to Option Aircraft except in accordance with Article 2.2 above.

2.4 Base Price Adjustments for Rollover Option Aircraft which are converted to Option Aircraft or firm Aircraft shall be in accordance with Article 2.2.5 of Attachment A to this Letter Agreement.

2.5 The delivery month offered by Boeing to Buyer for any Option or firm Aircraft resulting from a conversion of a Rollover Option Aircraft will be at least 24 months from the corresponding Option exercise date or firm order.

2.6 Upon conversion of a Rollover Option Aircraft into an Option Aircraft, Buyer shall wire transfer the Deposit of *** to Boeing and Boeing and Buyer shall agree on a delivery position for that aircraft. Section 1 of this Letter Agreement will be amended accordingly. In the event Buyer thereafter exercises its right to purchase such Option Aircraft, application of the Deposit will be in accordance with Article 4.1 herein. If the conversion is a Rollover Option Aircraft to a firm Aircraft, Buyer shall wire transfer any advance payments due under the Agreement.

2.7 Buyer and Boeing will consult on a frequent basis to keep each other informed as to Buyer's fleet plans and Boeing's production plans in order to accommodate to the greatest extent reasonably possible each party's needs in managing the delivery schedule for the Rollover Option Aircraft. Boeing acknowledges Buyer's need for delivery positions in the 2007-2012 time frame, as well as the possibility of a need for delivery positions in earlier years and will use its best reasonable efforts to meet Buyer's needs.

3. Price.

3.1 The advance payment base prices of the Option Aircraft set forth below and in paragraph 2.1 of Attachment A represent the estimated delivery prices of the Option Aircraft. The Option Aircraft pricing elements and associated pricing terms and conditions are given in Attachment A.

3.2 Price and escalation provisions for Model 737-7H4 aircraft delivering after 2006 are not currently available. The estimated Advance Payment Base Prices shown in paragraph 3.3 below and in paragraph 2.1 of Attachment A are based on currently available price and escalation provisions. As price and escalation provisions become available for Model 737-7H4 aircraft delivering after 2006, such price and escalation provisions will be appropriately applied to the applicable Option Aircraft.

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 5

For additional information relating to price and escalation provisions applicable to Option Aircraft delivering after 2006 refer to paragraphs 2.2 and 3.2 of Attachment A.

3.3 The Advance Payment Base Prices of the Option Aircraft indicated below do include an amount for special features in addition to those specifically described in Attachment A but do not include any amount for items of Buyer Furnished Equipment (BFE). An estimate for typical special features is *** per Aircraft (expressed in 1992 STE dollars) and for BFE is *** per Aircraft (expressed in delivery year dollars).

Month and Year Advance Payment Base of Delivery Price per Option Aircraft

Block M Aircraft***
June 2004
October 2004
July 2004
September 2004
November 2004
December 2004

Block N Aircraft***
February 2005
March 2005
April 2005
May 2005
June 2005
July 2005
August 2005
September 2005
October 2005
November 2005
December 2005

Block O Aircraft***
January 2006
March 2006
April 2006
May 2006

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16    Page 6

      June 2006
      July 2006
      August 2006
      October 2006
      November 2006
      December 2006

               Block P Aircraft***
      April 2007
      May 2007
      June 2007
      July 2007
      August 2007
      September 2007
      October 2007
      November 2007
      December 2007

               Block U Aircraft***
      January 2008
      February 2008
      March 2008
      April 2008
      May 2008
      June 2008
      July 2008
      August 2008
      September 2008
      October 2008
      November 2008
      December 2008

3.4 The Option Aircraft purchase price will be the applicable basic price thereof at the time of Option Aircraft delivery adjusted in accordance with Boeing's Aircraft escalation provisions contained in the definitive agreement to purchase the Option Aircraft. The purchase price will include the price for Seller Purchased Equipment (SPE) if Buyer has elected to change Buyer Furnished Equipment (BFE) to SPE.

4. Option Aircraft Payment.

4.1 In consideration of the granting of the Options as set forth herein, on or before the date Boeing and Buyer enter into a definitive agreement to purchase the Aircraft, Buyer will pay a deposit to Boeing of *** for each Option Aircraft (Deposit). In the event Buyer exercises its Options herein, the amount of the Deposit will be credited against the first advance payment due for such Option Aircraft pursuant to the advance payment schedule set forth in paragraph 3 of Attachment A. The Deposits for the Option Aircraft will be refunded to Buyer, without interest, if the parties do not enter into a definitive Agreement for the Aircraft.

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 7

In the event that, after the parties enter into a definitive agreement to purchase the Aircraft, Buyer does not exercise its Options to purchase the Option Aircraft pursuant to the terms and conditions set forth herein, Boeing will be entitled to retain the Deposits for the Option Aircraft except as provided in paragraph 6 herein.

4.2 Advance payments in the amount of 30% of the advance payment base price will be payable on the Option Aircraft in accordance with paragraph 3 of Attachment A. The remainder of the Option Aircraft purchase price is due at the time of delivery of the Option Aircraft.

5. Option Exercise.

5.1 To exercise its Option, Buyer will give written or telegraphic notice thereof to Boeing on or before sixteen (16) months prior to the first day of the delivery month of each Option Aircraft.

In such notice Buyer will select the Option Model type, and the applicable delivery positions.

5.2 It is understood and agreed that Boeing may accelerate the Option exercise dates specified above if Boeing must make production decisions which are dependent on Buyer's decision to buy the Option Aircraft. If Boeing elects to accelerate the Option exercise dates, Boeing will do so by giving written or telegraphic notice thereof to Buyer. Such notice will specify the revised Option exercise dates, which will not be earlier than 30 days after the date of transmittal of such notice, and the Option Aircraft delivery positions affected by such revision. If Buyer fails to exercise its Option for any Option Aircraft affected by such revised dates, the Deposit applicable to such Option Aircraft will be promptly refunded, with interest, to Buyer. The interest rate for calculation of the interest associated with such refund is the rate of two percent (2%) below the Citibank base rate in effect from time to time during the period the Option deposit is held by Boeing.

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 8

6. Contract Terms.

It is understood that Boeing and Buyer will use their best efforts to enter into a definitive agreement for the Option Aircraft within thirty (30) days after Buyer exercises an Option to purchase Option Aircraft pursuant to paragraph 5 covering the detailed terms and conditions for the sale of such Option Aircraft.

Such definitive agreement will include the terms and conditions contained herein together with the terms and conditions, not inconsistent herewith, contained in Boeing's then-current standard form of purchase agreement for the sale of Model 737-700 aircraft in effect as of the date of Option exercise and such additional terms and conditions as may be mutually agreed upon. In the event the parties have not entered into such an agreement within the time period contemplated herein, either party may, exercisable by written or telegraphic notice given to the other within thirty (30) days after such period, terminate the purchase of such Option Aircraft.

7. Termination of Option to Purchase.

Either Boeing or Buyer may terminate the Options to purchase an Option Aircraft if any of the following events are not accomplished by the respective dates contemplated in this letter agreement, or in the Agreement, as the case may be:

(i) termination of the purchase of the Aircraft under the Agreement for any reason;

(ii) payment by Buyer of the Deposit with respect to an Option Aircraft pursuant to paragraph 4.1 herein;

(iii) exercise of an Option to purchase an Option Aircraft pursuant to the terms hereof.

Any termination of an Option to purchase by Boeing which is based on the termination of the purchase of Aircraft under the Agreement will be on a one -for-one basis, for each Aircraft so terminated.

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 9

Any cancellation of an Option to purchase which is based on failure to make the required Deposit or to exercise the Option to purchase shall only apply to the Option Aircraft so canceled.

Termination of an Option to purchase provided by this letter agreement will be caused by either party giving written notice to the other within 10 days after the applicable date. Upon receipt of such notice, all rights and obligations of the parties with respect to an Option Aircraft for which the Option to purchase has been terminate will thereupon terminate.

If termination is result of a revision of an Option exercise date by Boeing pursuant to paragraph 5.2, Boeing will promptly refund to Buyer, with interest, any payments received from Buyer, including the Deposit, with respect to the Option Aircraft for which the Option is terminated. If termination is for any other reason, Boeing will promptly refund to Buyer, without interest, any payments received from Buyer with respect to the affected Option Aircraft, except the Deposit, which Buyer may apply to any model Boeing aircraft purchased by Buyer from Boeing at a future date.

P.A. No. 1810
K/SWA SA-25


Southwest Airlines Co.
6-1162-RLL-933R16 Page 10

8. Confidential Treatment. Buyer understands that certain commercial and financial information contained in this Letter Agreement including any attachments hereto is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity except as provided in Letter Agreement No. 6-1162-RLL -934, as amended.

Very truly yours,

THE BOEING COMPANY

By /s/ J.A. McGarvey

Its Attorney-In-Fact


ACCEPTED AND AGREED TO this

date:December 21, 2002

SOUTHWEST AIRLINES CO.

By /s/ Laura Wright

Its VP Finance & Treasurer

Attachments

P.A. No. 1810
K/SWA SA-25


Attachment A to
6-1162-RLL-933R16
Page 1

Model 737-7H4 Aircraft

1. Option Aircraft Description and Changes.

1.1 Aircraft Description. The Option Aircraft is described by Boeing Detail Specification D6-38808-1, Dated October 30 ,1996 and for Block "U" Option Aircraft by Boeing Detail Specification D6-38808-1, Rev. A, Dated February 24, 1998.

1.2 Changes. The Detail Specification will be revised to include:

(1) Changes applicable to the basic Model 737-700 aircraft which are developed by Boeing between the date of the Detail Specification and the signing of a definitive agreement to purchase the Option Aircraft.

(2) Changes mutually agreed upon.

(3) Changes required to obtain a Standard Certificate of Airworthiness.

(4) To provide sufficient Option Aircraft manufacturing and procurement lead time it is necessary for Boeing and Buyer to reach final agreement on the Option Aircraft configuration, including BFE/SPE vendor selection fifteen (15) months prior to delivery of each Option Aircraft. If such items are not resolved by the indicated dates, Boeing reserves the right to amend this letter agreement:

(i) to adjust the scheduled delivery of the Option Aircraft to a later time period and,

(ii) to make such other changes as are appropriate and consistent with the revised Option Aircraft deliveries.

1.3 Effect of Changes. Changes to the Detail Specification incorporated pursuant to the provisions of the clauses above will include the effects of such changes upon Option Aircraft weight, balance, design and performance. Performance guarantees for the Option Aircraft which are mutually acceptable to the parties will be included in the definitive agreement for the Option Aircraft.

P.A. No. 1810
K/SWA SA-25


Attachment A to
6-1162-RLL-933R16
Page 2

2. Price Description

2.1 Price Elements Per Aircraft

                    1               2          3

                AIRCRAFT &
                 ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL             ESTIMATED  BASE PRICE
DELIVERY        FEATURES PRICE    ESTIMATED  ESCALATION (ELEMENTS)
MO. & YR.       (JULY 1999$)     ESCALATION  SHARING     1 + 2 + 3
BLOCK M

June 2004           ***               ***     ***            ***
July 2004           ***               ***     ***            ***
September 2004      ***               ***     ***            ***
October 2004        ***               ***     ***            ***
November 2004       ***               ***     ***            ***
December 2004       ***               ***     ***            ***

BLOCK N

February 2005       ***               ***     ***            ***
March 2005          ***               ***     ***            ***
April 2005          ***               ***     ***            ***
May 2005            ***               ***     ***            ***
June 2005           ***               ***     ***            ***
July 2005           ***               ***     ***            ***
August 2005         ***               ***     ***            ***
September 2005      ***               ***     ***            ***
October 2005        ***               ***     ***            ***
November 2005       ***               ***     ***            ***
December 2005       ***               ***     ***            ***

BLOCK O

January 2006        ***               ***     ***            ***
March 2006          ***               ***     ***            ***
April 2006          ***               ***     ***            ***
May 2006            ***               ***     ***            ***
June 2006           ***               ***     ***            ***
July 2006           ***               ***     ***            ***
August 2006         ***               ***     ***            ***
October 2006        ***               ***     ***            ***
November 2006       ***               ***     ***            ***
December 2006       ***               ***     ***            ***

P.A. No. 1810
K/SWA SA-25


Attachment A to
6-1162-RLL-933R16

Page 3
                 AIRCRAFT &
                 ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL             ESTIMATED  BASE PRICE
DELIVERY        FEATURES PRICE    ESTIMATED  ESCALATION (ELEMENTS)
MO. & YR.       (JULY 1992$)     ESCALATION  SHARING     1 + 2 + 3

BLOCK P
April 2007         ***               ***     ***            ***
May 2007           ***               ***     ***            ***
June 2007          ***               ***     ***            ***
July 2007          ***               ***     ***            ***
August 2007        ***               ***     ***            ***
September 2007     ***               ***     ***            ***
October 2007       ***               ***     ***            ***
November 2007      ***               ***     ***            ***
December 2007      ***               ***     ***            ***

                AIRCRAFT &
                ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL             ESTIMATED  BASE PRICE
DELIVERY        FEATURES PRICE    ESTIMATED  ESCALATION (ELEMENTS)
MO. & YR.       (JULY 1999$)     ESCALATION  SHARING     1 + 2 + 3

BLOCK U
January 2008       ***               ***     ***            ***
February 2008      ***               ***     ***            ***
March 2008         ***               ***     ***            ***
April 2008         ***               ***     ***            ***
May 2008           ***               ***     ***            ***
June 2008          ***               ***     ***            ***
July 2008          ***               ***     ***            ***
August 2008        ***               ***     ***            ***
September 2008     ***               ***     ***            ***
October 2008       ***               ***     ***            ***
November 2008      ***               ***     ***            ***
December 2008      ***               ***     ***            ***

2.2 PriceAdjustments For Option Aircraft Delivering From January 2007 through December 2012.

2.2.1 Special Features. The price for Special Features incorporated in the Option Aircraft Detail Specification will be adjusted to Boeing's then-current prices for such features as of the date of execution of the definitive agreement for the Option Aircraft.

2.2.2 Escalation Adjustments. For escalation provisions applicable to Option Aircraft delivering after 2006, see paragraph 2.2.6 below.

P.A. No. 1810
K/SWA SA-25


Attachment A to
6-1162-RLL-933R16
Page 4

                  2.2.3    Base Price Adjustments for FAA Changes.  The

Aircraft Basic Price of the Option Aircraft will be adjusted for any FAA mandated changes incorporated into the Aircraft.

2.2.4 Price Adjustments for Changes. Boeing may adjust the Aircraft Basic Price and the Advance Payment Base Price for any changes mutually agreed upon subsequent to the date that Buyer and Boeing enter into a definitive agreement for the Option Aircraft.

2.2.5 Base Price Adjustments. The Aircraft Basic Price of the Option Aircraft will be adjusted to Boeing's then-current prices as of the date of execution of the definitive agreement for the Option Aircraft in accordance with the agreement reached below. The Aircraft Basic Price starting point for Option Aircraft delivering in 2003 is *** (July 1992 STE), for Option Aircraft delivering in 2004 is *** (July 1992 STE), for Options delivering in 2005 through 2009 is *** (July 1992 STE) and for Block "U" Option Aircraft is *** (July 1999 STE). Such Aircraft Basic Price may increase in accordance with paragraphs 2.2.1, 2.2.2, 2.2.3 and 2.2.4. For any other changes to the Aircraft Basic Price, Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1992 STE) for Aircraft delivering in 2005; by a maximum of *** (July 1992 STE) per year or portion thereof starting in January 2006 through 2009. For Block "U" Option Aircraft Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1999 STE) per year or portion thereof starting in January 2008.

2.2.6 Prices for Long Lead Time Aircraft. Boeing has not established escalation provisions for Model 737-700 aircraft for delivery 2007 and after. Such escalation provisions (i) will be incorporated into the Option Aircraft definitive agreement when such information is available and
(ii) will be the then-current escalation provisions applicable to the same model aircraft and engines delivering in the same time period as the Option Aircraft. The resulting revisions to the definitive agreement will include but not be limited to, adjustment of the Aircraft Basic Price of the Option Aircraft, the Advance Payment Base Price, the Aircraft escalation provisions and the advance payment amounts due on the Option Aircraft.

2.2.7 BFE to SPE. An estimate of the total price for items of Buyer Furnished Equipment (BFE) changed to Seller Purchased Equipment (SPE) pursuant to the Configuration Specification is included in the Option Aircraft price build-up. The purchase price of the Option Aircraft will be adjusted by the price charged to Boeing for

P.A. No. 1810
K/SWA SA-25


Attachment A to
6-1162-RLL-933R16

Page 5

such items plus 10% of such price. If all BFE except developmental avionics is converted to SPE, Boeing will waive the 10% fee.

3. Advance Payment Schedules, Prices and Adjustments.

3.1 Buyer will pay to Boeing advance payments for the Option Aircraft on the dates and in the amounts determined below.

                                  Amount Due per Aircraft
                                     (Percentage times
Due Date of Payment              Advance Payment Base Price)

Deposit                                 ***(if applicable)
18 months prior to the first            15% (less the
day of the scheduled delivery                Deposit if any)
month of the Aircraft

12 months prior to the first            5%
day of the scheduled delivery
month of the Aircraft

9 months prior to the first             5%
day of the scheduled delivery
month of the Aircraft

6 months prior to the first             5%
day of the scheduled delivery
month of the Aircraft

             Total                      30%

Any advance payments that would be past due as of the date of signing the definitive purchase agreement for the Option Aircraft in accordance with the above schedule are due and payable on such date.

3.2 Option Aircraft advance payment base prices will be increased or decreased, as appropriate, at the time of signing of the definitive purchase agreement for the Option Aircraft, using the then-current forecasted aircraft escalation factors used by Boeing, to determine the amount of the advance payments to be made by Buyer on the Option Aircraft.

P.A. No. 1810
K/SWA SA-25


6-1162-KJJ-055R1


Southwest Airlines Co.
P.O. Box 36611 - Love Field
Dallas, Texas 75235

Subject:    Letter Agreement No. 6-1162-KJJ-055R1 to Purchase
Agreement No. 1810 - Structural Matters

Reference:        Purchase Agreement No. 1099
                  Purchase Agreement No. 1405
                  Purchase Agreement No. 1510

This letter Agreement amends Purchase Agreement No. 1810 dated January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737-7H4 aircraft (the Aircraft).

All terms used herein and in the Agreement, and not defined herein, will have the same meaning as in the Agreement.

1. ***

2. ***

3. ***

P.A. No. 1810 SA-25


Southwest Airlines Co.
6-1162-KJJ-055R1 Page 2

4. Confidential Treatment.

Buyer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without prior written consent of Boeing disclose this Letter Agreement, except as provided in Letter Agreement 6- 1162-RLL-934, as amended.

Very truly yours,

THE BOEING COMPANY

By _/s/ J.A. McGarvey_____________

Its  _Attorney in Fact____________



ACCEPTED AND AGREED TO as of this
Date: December 21, 2002

SOUTHWEST AIRLINES CO.

By _/s/ Laura Wright______________

Its  _VP Finance & Treasurer______

P.A. No. 1810 SA-25


Attachment B-***
Boeing Model 737-300 Aircraft
***

***

Attachment B to Letter Agreement 6-1162-KJJ-055R1 SA-25 P.A. No. 1810


Attachment C-***
Boeing Model 737-500 Aircraft
***

***

Attachment C to Letter Agreement 6-1162-KJJ-055R1 SA-25 P.A. No. 1810


Supplemental Agreement No. 26

to

Purchase Agreement No. 1810

between

THE BOEING COMPANY

and

SOUTHWEST AIRLINES CO.

Relating to Boeing Model 737-7H4 Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of February 26 , 2003, by and between THE BOEING COMPANY, a Delaware corporation with its principal offices in Seattle, Washington, (Boeing) and SOUTHWEST AIRLINES CO., a Texas corporation with its principal offices in Dallas, Texas (Buyer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 1810 dated January 19, 1994, relating to Boeing Model 737-7H4 aircraft (the Agreement) and;

WHEREAS, Buyer has agreed to exercise two (2) June 2004 Block M Option Aircraft (as Block K Aircraft) and;

WHEREAS, Buyer has agreed to accelerate a Block L Option Aircraft from April 2003 to March 2003;

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties agree to amend the Agreement as follows:

1. The Table of Contents of the Agreement is deleted in its entirety and a new Table of Contents is attached hereto and incorporated into the Agreement by this reference.

***Pursuant to 17 CFR 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission.

P.A. No. 1810 SA-26-1
K/SWA


2. Article 2, entitled "Delivery, Title and Risk of Loss," is deleted in its entirety and replaced by a new Article 2. Such new pages 2-1, 2-2, 2-3 and 2-4 are attached hereto and incorporated into the Agreement by this reference.

3. Article 3, entitled "Price of Aircraft", is deleted in its entirety and replaced by a new Article 3. Such new pages 3-1, 3-2, 3-3, 3-4, 3-5 and 3-6 are attached hereto and incorporated into the Agreement by this reference.

4. Letter Agreement No. 6-1162-RLL-933R16 entitled "Option Aircraft," is deleted in its entirety and replaced by a new Letter Agreement No. 6-1162- RLL-933R17 which is attached hereto and is incorporated into the Agreement by this reference. NOTE - Buyer now has eight (8) 'banked' Rollover Option Aircraft as a result of the option exercises covered by Supplemental Agreement No. 21, 23, 24 and 26 that may be converted to Option Aircraft at a future date subject to the terms of Letter Agreement No. 6-1162-RLL-933R17.

5. All references in the Letter Agreements associated with Purchase Agreement No. 1810 shall be deemed to refer to the purchase by Buyer of two hundred forty-four(244) Model 737-7H4 Aircraft, seventy-nine (79) Model 737 -7H4 Option Aircraft and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft, to the extent such reference is not specifically addressed herein.

6. The Advance Payments due upon signing assuming execution of this Supplemental Agreement in February 2003 are:

*** for the June 2004 aircraft
*** for the June 2004 aircraft
*** for the March 2003 aircraft
*** Total

Buyer will pay the *** directly to Boeing upon execution of this agreement.

P.A. No. 1810 SA-26-2
K/SWA


The Agreement will be deemed to be supplemented to the extent herein provided and as so supplemented will continue in full force and effect.

EXECUTED IN DUPLICATE as of the day and year first above written.

THE BOEING COMPANY SOUTHWEST AIRLINES CO.

By:  /s/ J.A. McGarvey              By: /s/ Laura Wright

Its:    Attorney-In-Fact            Its:_VP Finance & Treasurer

P.A. No. 1810 SA-26-3
K/SWA


                                  TABLE OF CONTENTS


                                                             Page         SA
                                                             Number     Number

ARTICLES

1.    Subject Matter of Sale                                 1-1       SA-13

2.    Delivery, Title and Risk
      of Loss                                                2-1       SA-26

3.    Price of Aircraft                                      3-1       SA-26

4.    Taxes                                                  4-1

5.    Payment                                                5-1

6.    Excusable Delay                                        6-1

7.    Changes to the Detail
      Specification                                          7-1        SA-1

8.    Federal Aviation Requirements and
      Certificates and Export License                        8-1

9.    Representatives, Inspection,
      Flights and Test Data                                  9-1

10.   Assignment, Resale or Lease                           10-1

11.   Termination for Certain Events                        11-1

12.   Product Assurance; Disclaimer and
      Release; Exclusion of Liabilities;
      Customer Support; Indemnification
      and Insurance                                         12-1

13.   Buyer Furnished Equipment and
      Spare Parts                                           13-1

14.   Contractual Notices and Requests                      14-1

15.   Miscellaneous                                         15-1

P.A. No. 1810 I
K/SWA SA-26


                         TABLE OF CONTENTS CON'T


                                                                           SA
                                                                       Number

EXHIBITS

A     Aircraft Configuration                                            SA-13

B     Product Assurance Document                                         SA-1

C     Customer Support Document

D     Price Adjustments Due to
      Economic Fluctuations - Aircraft                                  SA-13

E     Buyer Furnished Equipment
      Provisions Document

F     Defined Terms Document

LETTER AGREEMENTS

1810-1 Waiver of Aircraft Demonstration Flight

P.A. No. 1810 ii
K/SWA SA-26


                               TABLE OF CONTENTS CON'T

                                                                            SA
                                                                        Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-932R2  Promotional Support                                  SA-13

6-1162-RLL-933R17 Option Aircraft                                      SA-26

6-1162-RLL-934R3  Disclosure of Confidential                           SA-14
                  Information

6-1162-RLL-935R1  Performance Guarantees                                SA-1

6-1162-RLL-936R4  Certain Contractual Matters                           SA-4

6-1162-RLL-937    Alternate Advance Payment Schedule

6-1162-RLL-938    ***

6-1162-RLL-939R1  Certification Flight Test Aircraft                    SA-1

6-1162-RLL-940R1  Training Matters                                      SA-1

6-1162-RLL-941R2  Other Matters                                        SA-13

6-1162-RLL-942    Open Configuration Matters

6-1162-RLL-943R1  Substitution Rights                                   SA-6

6-1162-RLL-944    Airframe Maintenance Material Cost
                  Protection Program

6-1162-RLL-945    Comparison of 737-7H4 and 737-3H4
                  Block Fuel Burn

6-1162-RLL-1855R3 Additional Contractual Matters                        SA-4

6-1162-RLL-1856   ***                                                   SA-1

6-1162-RLL-1857   Service Ready Validation Program                      SA-1
                  Field Test

6-1162-RLL-1858R1  Escalation Matters                                   SA-4

P.A. No. 1810 iii
K/SWA SA-26


                                TABLE OF CONTENTS CON'T


                                                                            SA
                                                                        Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-2036   Amortization of Costs for
                  Customer Unique Changes                               SA-1

6-1162-RLL-2037   Reconciliation of the Aircraft                        SA-1
                  Basic Price

6-1162-RLL-2073   Maintenance Training Matters                          SA-1

6-1162-KJJ-054    Business Matters                                     SA-13

6-1162-KJJ-055R1  Structural Matters                                   SA-25

6-1162-KJJ-056    Noise and Emission Matters                           SA-13

6-1162-KJJ-057    Product Development Matters                          SA-13

6-1162-KJJ-058    Additional Substitution Rights                       SA-13

6-1162-KJJ-150    Flight Control Computer & Mode                       SA-14
                  Control Panel Spares Matter

6-1162-MSA-185R3  Delivery Change Contractual                          SA-21
                  Matters

P.A. No. 1810 iv
K/SWA SA-26


ARTICLE 2. Delivery, Title and Risk of Loss.

2.1 Time of Delivery. The Aircraft will be delivered to Buyer by Boeing, assembled and ready for flight and Buyer will accept delivery of the Aircraft, in accordance with the following schedule:

            Month and Year
            of Delivery                Quantity of Aircraft

                        Block E Aircraft
            December 2000                    Two (2)
            January 2001                     One (1)
            February 2001                    One (1)
            March 2001                       Two (2)
            June 2001                      Three (3)
            September 2001                 Three (1)

                        Block F Aircraft
            October 1998                     One (1)
            November 1998                    Two (2)
            December 1998                    Two (2)

                        Block G Aircraft
            March 1999                       Two (2)

                        Block H Aircraft
            June 1999                        Two (2)
            July 1999                        One (1)
            August 1999                      One (1)
            September 1999                   Two (2)
            October 1999                     One (1)
            March 2000                       One (1)
            April 2000                       Two (2)
            September 2000                   One (1)
            October 2000                     Two (2)
            March 2001                       Two (2)
            April 2001                       One (1)
            October 2001                   Three (3)

                        Block I Aircraft
            November 2001                    Two (2)
            December 2001                    One (1)
            January 2002                     One (1)
            March 2002                      Four (4)
            April 2002                       Two (2)

P.A. No. 1810                             2-1
K/SWA                                                                    SA-26

            December 2002                   Two (2)
            May 2003                        One (1)
            June 2003                       Two (2)
            July 2003                       One (1)
            September 2003                  Two (2)
            October 2003                    Two (2)

                        Block J Aircraft
            November 2002                   One (1)
            December 2002                   One (1)
            November 2003                   Two (2)
            December 2003                   Two (2)
            March 2004                      One (1)

                        Block K Aircraft
            March 2004                      One (1)
            April 2004                    Three (3)
            May 2004                        One (1)
            June 2004                       Two (2)

                        Block L Aircraft
            October 1999                    One (1)
            November 1999                   Two (2)
            December 1999                   One (1)
            June 2000                     Three (3)
            July 2000                     Three (3)
            September 2000                  One (1)
            October 2000                    One (1)
            November 2000                  Four (4)
            December 2000                   One (1)
            January 2001                    One (1)
            February 2001                   One (1)
            July 2001                       One (1)
            September 2001                  One (1)
            October 2001                    One (1)
            March 2003                      Two (2)
            July 2003                       One (1)
            August 2003                     Two (2)

                        Block T Aircraft
            November 2001                   One (1)
            February 2002                   One (1)
            January 2004                    Two (2)
            May 2004                        One (1)
            June 2004                     Three (3)
            July 2004                       One (1)
            August 2004                     Two (2)
            September 2004                Three (3)
            October 2004                    One (1)

P.A. No. 1810                    2-2
K/SWA                                                           SA-26

            November 2004                   One (1)
            December 2004                   One (1)
            January 2005                   Five (5)
            February 2005                   Two (2)
            March 2005                      One (1)
            April 2005                      Two (2)
            May 2005                        One (1)
            June 2005                     Three (3)
            July 2005                       Two (2)
            August 2005                     One (1)
            September 2005                  Two (2)
            October 2005                    One (1)
            November 2005                   Two (2)
            December 2005                   Two (2)
            February 2006                  Four (4)
            May 2006                      Three (3)
            June 2006                      Four (4)
            July 2006                       One (1)
            August 2006                   Three (3)
            September 2006                Three (3)
            November 2006                   Two (2)
            December 2006                   Two (2)
            January 2007                    Two (2)
            February 2007                 Three (3)
            March 2007                      Two (2)
            April 2007                      Two (2)
            May 2007                        Two (2)
            June 2007                       Two (2)
            July 2007                       Two (2)
            August 2007                     Two (2)
            September 2007                  Two (2)
            October 2007                    Two (2)
            November 2007                   Two (2)
            December 2007                   Two (2)
            January 2008                    One (1)
            February 2008                   One (1)
            March 2008                      One (1)
            April 2008                      One (1)
            May 2008                        One (1)
            June 2008                       One (1)

2.2 Notice of Target Delivery Date. Boeing will give Buyer notice of the Target Delivery Date of the Aircraft approximately 30 days prior to the scheduled month of delivery.

2.3 Notice of Delivery Date. If Boeing gives Buyer at least 7 days' notice of the delivery date of the Aircraft, and an Aircraft delivery is delayed beyond such delivery date due to the responsibility of Buyer, Buyer will reimburse Boeing for all costs incurred by Boeing as a result of such delay, including amounts for storage, insurance, Taxes, preservation or

protection of

P.A. No. 1810                       2-3
K/SWA                                                            SA-26

the Aircraft and interest on payments due.

2.4 Place of Delivery. The Aircraft will be delivered at an airport facility selected by Boeing in the State of Washington, unless mutually agreed otherwise.

2.5 Title and Risk of Loss. Title to and risk of loss of an Aircraft will pass from Boeing to Buyer upon delivery of such Aircraft, but not prior thereto.

2.6 Bill of Sale. Upon delivery of an Aircraft Boeing will deliver to Buyer a bill of sale conveying good title to such Aircraft, free of all liens, claims, charges and encumbrances of every kind whatsoever, and such other appropriate documents of title as Buyer may reasonably request.

P.A. No. 1810 2-4
K/SWA SA-26


ARTICLE 3. Price of Aircraft.

3.1 Definitions.

3.1.1 Special Features are the features incorporated in Exhibit A which have been selected by Buyer.

3.1.2 Base Aircraft Price is the Aircraft Basic Price excluding the price of Special Features.

3.1.3 Aircraft Basic Price is comprised of the Base Aircraft Price and the price of the Special Features.

3.1.4 Economic Price Adjustment is the adjustment to the Aircraft Basic Price (Base Aircraft and Special Features) as calculated pursuant to Exhibit D or Exhibit D-1 as applicable.

3.1.5 Aircraft Price is the total amount Buyer is to pay for the Aircraft at the time of delivery.

3.2 Aircraft Basic Price.

The Aircraft Basic Price for Block A through L Aircraft, is expressed in July 1992 dollars; the Aircraft Basic Price for Block T Aircraft, is expressed in July 1999 dollars; as set forth below:

                 Base                    Special              Aircraft
                 Aircraft Price          Features             Basic Price
Block A, B, C,   ***                     ***                  ***
D & E Aircraft
Block F & G      ***                     ***                  ***
Aircraft
Block H          ***                     ***                  ***
Aircraft
Block I          ***                     ***                  ***
Aircraft
Block J          ***                     ***                  ***
Aircraft
Block K          ***                     ***                  ***
Aircraft
Block L          ***                     ***                  ***
Aircraft
Block T          ***                     ***                  ***
Aircraft

P.A. No. 1810 3-1
K/SWA SA-26

3.3 Aircraft Price. The Aircraft Price will be established at the time of delivery of such Aircraft to Buyer and will be the sum of:

3.3.1 the Aircraft Basic Price, which is *** for the Block A, B, C, D and E Aircraft, *** for the Block F and G Aircraft, *** for the Block H Aircraft, *** for the Block I Aircraft, *** for the Block J Aircraft, *** for the Block K Aircraft and *** for the Block L Aircraft; *** for the Block T Aircraft; plus

3.3.2 the Economic Price Adjustments for the Aircraft Basic Price, as calculated pursuant to the formulas set forth in Exhibit D (Price Adjustments Due to Economic Fluctuations - Aircraft) for Aircraft Block A through L, and in Exhibit D-1 (Price Adjustments Due to Economic Fluctuations - Aircraft) for Aircraft Block T; plus

3.3.3 other price adjustments made pursuant to this Agreement or other written agreements executed by Boeing and Buyer.

3.4 Advance Payment Base Price.

3.4.1 Advance Payment Base Price. For advance payment purposes, the following estimated delivery prices of the Aircraft (Advance Payment Base Price) have been established, using currently available forecasts of the escalation factors used by Boeing as of the date of signing this Agreement. The Advance Payment Base Price of each Aircraft is set forth below:

      Month and Year of                 Advance Payment Base
      Scheduled Delivery                Price per Aircraft

                        Block A Aircraft***
      October 1997
      November 1997



                        Block B Aircraft***
      January 1998
      February 1998
      March 1998
      April 1998
      May 1998
      June 1998
      July 1998
      September 1998

P.A. No. 1810                          3-2
K/SWA                                                           SA-26

                        Block C Aircraft***
      February 1999
      May 1999
      July 1999
      August 1999
      September 1999

                        Block D Aircraft***
      November 1999
      December 1999
      January 2000
      March 2000
      July 2000
      August 2000

                        Block E Aircraft***
      December 2000
      January 2001
      February 2001
      March 2001
      June 2001
      September 2001

                        Block F Aircraft***
      October 1998
      November 1998
      December 1998

                        Block G Aircraft***
      March 1999

                        Block H Aircraft***
      June 1999
      July 1999
      August 1999
      September 1999
      October 1999
      March 2000
      April 2000
      September 2000
      October 2000
      March 2001
      April 2001
      October 2001

                        Block I Aircraft***
      November 2001

P.A. No. 1810                               3-3
K/SWA                                                                  SA-26

      December 2001
      January 2002
      March 2002
      April 2002
      December 2002
      May 2003
      June 2003
      July 2003
      September 2003
      October 2003

                        Block J Aircraft***
      November 2002
      December 2002
      November 2003
      December 2003
      March 2004

                        Block K Aircraft***
      March 2004
      April 2004
      May 2004
      June 2004

                        Block L Aircraft***
      October 1999
      November 1999
      December 1999
      June 2000
      July 2000
      September 2000
      October 2000
      November 2000
      December 2000
      January 2001
      February 2001
      July 2001
      September 2001
      October 2001
      March 2003
      July 2003
      August 2003

                        Block T Aircraft***
      November 2001
      January 2004
      February 2002
      May 2004
      June 2004
      July 2004

P.A. No. 1810                          3-4
K/SWA                                                           SA-26

      August 2004
      September 2004
      October 2004
      November 2004
      December 2004
      January 2005
      February 2005
      March 2005
      April 2005
      May 2005
      June 2005
      July 2005
      August 2005
      September 2005
      October 2005
      November 2005
      December 2005
      February 2006
      May 2006
      June 2006
      July 2006
      August 2006
      September 2006
      November 2006
      December 2006
      January 2007
      February 2007
      March 2007
      April 2007
      May 2007
      June 2007
      July 2007
      August 2007
      September 2007
      October 2007
      November 2007
      December 2007
      January 2008
      February 2008
      March 2008
      April 2008
      May 2008
      June 2008

3.4.2 Adjustment of Advance Payment Base Prices - Long-Lead Aircraft. For Aircraft scheduled for delivery 36 months or more after the date of this Agreement, the Advance Payment Base Prices appearing in Article 3.4.1 will be used to determine the amount of the first advance payment to be made by Buyer on the Aircraft. No later than 25 months before the scheduled month of delivery of each affected Aircraft, Boeing will increase or decrease the Advance Payment Base Price of such Aircraft as required to reflect the

P.A. No. 1810 3-5
K/SWA SA-26


effects of (i) any adjustments in the Aircraft Basic Price pursuant to this Agreement and (ii) the then-current forecasted escalation factors used by Boeing. Boeing will provide the adjusted Advance Payment Base Prices for each affected Aircraft to Buyer, and the advance payment schedule will be considered amended to substitute such adjusted Advance Payment Base Prices.

P.A. No. 1810                             3-6
K/SWA                                                                SA-26

6-1162-RLL-933R17


Southwest Airlines Co.
P.O. Box 36611 - Love Field
Dallas, Texas  75235

Subject: Letter Agreement No. 6-1162-RLL-933R17 to Purchase Agreement No. 1810 - Option Aircraft

This Letter Agreement amends Purchase Agreement No. 1810 dated as of January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737-7H4 aircraft (Aircraft).

All terms used and not defined herein will have the same meaning as in the Agreement.

In consideration of the purchase by Buyer of the Aircraft, Boeing hereby agrees to manufacture and sell to Buyer and Buyer shall have the option to purchase (Option or Options) eighty-one (81) additional Model 737-7H4 aircraft as described in paragraph 1 of Attachment A hereto (Option Aircraft) and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft (Rollover Option Aircraft), subject to the terms and conditions set forth below.

1. Delivery of Option Aircraft.

The Option Aircraft will be delivered to Buyer during or before the months set forth in the following schedule:

                              Number of              Option
      Month and Year          Option                 Aircraft
      of Delivery             Aircraft               Block
      July 2004               Two (2)                  M
      September 2004          One (1)                  M
      October 2004            Four (4)                 M
      November 2004           Two (2)                  M
      December 2004           Two (2)                  M




P.A. No. 1810
K/SWA                                                               SA-26

Southwest Airlines Co.
6-1162-Rll-933R17   Page 2
                              Number of              Option
      Month and Year          Option                 Aircraft
      of Delivery             Aircraft               Block
      February 2005           One (1)                  N
      March 2005              Four (4)                 N
      April 2005              Two (2)                  N
      May 2005                One (1)                  N
      June 2005               One (1)                  N
      July 2005               One (1)                  N
      August 2005             One (1)                  N
      September 2005          Three (3)                N
      October 2005            Two (2)                  N
      November 2005           One (1)                  N
      December 2005           One (1)                  N

      January 2006            Two (2)                  O
      March 2006              Three (3)                O
      April 2006              Two (2)                  O
      May 2006                Two (2)                  O
      June 2006               One (1)                  O
      July 2006               Two (2)                  O
      August 2006             One (1)                  O
      October 2006            One (1)                  O
      November 2006           One (1)                  O
      December 2006           One (1)                  O

      April 2007              One (1)                  P
      May 2007                One (1)                  P
      June 2007               One (1)                  P
      July 2007               One (1)                  P
      August 2007             One (1)                  P
      September 2007          One (1)                  P
      October 2007            One (1)                  P
      November 2007           One (1)                  P
      December 2007           One (1)                  P

      January 2008            Two (2)                  U
      February 2008           Three (3)                U
      March 2008              Two (2)                  U
      April 2008              Two (2)                  U
      May 2008                Two (2)                  U
      June 2008               Two (2)                  U
      July 2008               Two (2)                  U
      August 2008             Two (2)                  U
      September 2008          Two (2)                  U
      October 2008            Two (2)                  U
      November 2008           Two (2)                  U
      December 2008           Two (2)                  U

2. Delivery of Rollover Option Aircraft.

2.1 The Rollover Option Aircraft will be delivered to Buyer during or before the years set forth in the following schedule:

                     Number of                Option
Year of                Option                   Aircraft
Delivery               Aircraft                 Block
2007                   Twenty (20)                Q
2008                   Twenty (20)                R
2009                   Six (6)                    S
2009-2012              One hundred seventy one    V
                     (171)

2.2 The two hundred seventeen (217) Rollover Option Aircraft may be converted into Option Aircraft or firm Aircraft, from time to time, in any of the following ways:

2.2.1 Buyer can exercise any Option for an Option Aircraft described in Article 1 above, and will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each Option exercised. Buyer can elect to convert such Rollover Option Aircraft into an Option Aircraft at any time after converting an Option Aircraft to a firm Aircraft subject to the requirements of Article 2.5.

2.2.2 If Buyer elects not to exercise an Option, at the same time of not exercising such Option Buyer may convert one Rollover Option Aircraft to an Option Aircraft; otherwise, one Rollover Option Aircraft will be deleted for each Option not exercised by Buyer.

2.2.3 Buyer may convert Rollover Option Aircraft directly to firm Aircraft. When Buyer converts one or more Rollover Option Aircraft to firm Aircraft, Buyer will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each converted Rollover Option Aircraft. Buyer can elect to convert such Rollover Option Aircraft to Option Aircraft at any time after converting Rollover Option to firm Aircraft subject to the requirements of Article 2.5.

P.A. No. 1810
K/SWA SA-26


Southwest Airlines Co.
6-1162-RLL-933R17 Page 3

2.3 Buyer may not convert Rollover Option Aircraft to Option Aircraft except in accordance with Article 2.2 above.

2.4 Base Price Adjustments for Rollover Option Aircraft which are converted to Option Aircraft or firm Aircraft shall be in accordance with Article 2.2.5 of Attachment A to this Letter Agreement.

2.5 The delivery month offered by Boeing to Buyer for any Option or firm Aircraft resulting from a conversion of a Rollover Option Aircraft will be at least 24 months from the corresponding Option exercise date or firm order.

2.6 Upon conversion of a Rollover Option Aircraft into an Option Aircraft, Buyer shall wire transfer the Deposit of *** to Boeing and Boeing and Buyer shall agree on a delivery position for that aircraft. Section 1 of this Letter Agreement will be amended accordingly. In the event Buyer thereafter exercises its right to purchase such Option Aircraft, application of the Deposit will be in accordance with Article 4.1 herein. If the conversion is a Rollover Option Aircraft to a firm Aircraft, Buyer shall wire transfer any advance payments due under the Agreement.

2.7 Buyer and Boeing will consult on a frequent basis to keep each other informed as to Buyer's fleet plans and Boeing's production plans in order to accommodate to the greatest extent reasonably possible each party's needs in managing the delivery schedule for the Rollover Option Aircraft. Boeing acknowledges Buyer's need for delivery positions in the 2007-2012 time frame, as well as the possibility of a need for delivery positions in earlier years and will use its best reasonable efforts to meet Buyer's needs.

3. Price.

3.1 The advance payment base prices of the Option Aircraft set forth below and in paragraph 2.1 of Attachment A represent the estimated delivery prices of the Option Aircraft. The Option Aircraft pricing elements and associated pricing terms and conditions are given in Attachment A.

3.2 Price and escalation provisions for Model 737-7H4 aircraft delivering after 2006 are not currently available. The estimated Advance Payment Base Prices shown in paragraph 3.3 below and in paragraph 2.1 of

P.A. No. 1810
K/SWA SA-26


Southwest Airlines Co.
6-1162-RLL-933R17 Page 4

Attachment A are based on currently available price and escalation provisions. As price and escalation provisions become available for Model 737-7H4 aircraft delivering after 2006, such price and escalation provisions will be appropriately applied to the applicable Option Aircraft.

For additional information relating to price and escalation provisions applicable to Option Aircraft delivering after 2006 refer to paragraphs 2.2 and 3.2 of Attachment A.

3.3 The Advance Payment Base Prices of the Option Aircraft indicated below do include an amount for special features in addition to those specifically described in Attachment A but do not include any amount for items of Buyer Furnished Equipment (BFE). An estimate for typical special features is *** per Aircraft (expressed in 1992 STE dollars) and for BFE is *** per Aircraft (expressed in delivery year dollars).

      Month and Year                 Advance Payment Base
      of Delivery                    Price per Option Aircraft

                   Block M Aircraft***
      July 2004
      September 2004
      October 2004
      November 2004
      December 2004

                   Block N Aircraft***
      February 2005
      March 2005
      April 2005
      May 2005
      June 2005
      July 2005
      August 2005
      September 2005
      October 2005
      November 2005
      December 2005

                  Block O Aircraft***
      January 2006
      March 2006
      April 2006
      May 2006
      June 2006

P.A. No. 1810
K/SWA                                                          SA-26

Southwest Airlines Co.
6-1162-RLL-933R17   Page 6

      July 2006
      August 2006
      October 2006
      November 2006
      December 2006

                  Block P Aircraft***
      April 2007
      May 2007
      June 2007
      July 2007
      August 2007
      September 2007
      October 2007
      November 2007
      December 2007

                  Block U Aircraft***
      January 2008
      February 2008
      March 2008
      April 2008
      May 2008
      June 2008
      July 2008
      August 2008
      September 2008
      October 2008
      November 2008
      December 2008

3.4 The Option Aircraft purchase price will be the applicable basic price thereof at the time of Option Aircraft delivery adjusted in accordance with Boeing's Aircraft escalation provisions contained in the definitive agreement to purchase the Option Aircraft. The purchase price will include the price for Seller Purchased Equipment (SPE) if Buyer has elected to change Buyer Furnished Equipment (BFE) to SPE.

4. Option Aircraft Payment.

4.1 In consideration of the granting of the Options as set forth herein, on or before the date Boeing and Buyer enter into a definitive agreement to purchase the Aircraft, Buyer will pay a deposit to Boeing of *** for each Option Aircraft (Deposit). In the event Buyer exercises its Options herein, the amount of the Deposit will be credited against the first advance payment due for such Option Aircraft pursuant to the advance payment schedule

P.A. No. 1810
K/SWA SA-26


Southwest Airlines Co.
6-1162-RLL-933R17 Page 7

set forth in paragraph 3 of Attachment A. The Deposits for the Option Aircraft will be refunded to Buyer, without interest, if the parties do not enter into a definitive Agreement for the Aircraft.

In the event that, after the parties enter into a definitive agreement to purchase the Aircraft, Buyer does not exercise its Options to purchase the Option Aircraft pursuant to the terms and conditions set forth herein, Boeing will be entitled to retain the Deposits for the Option Aircraft except as provided in paragraph 6 herein.

4.2 Advance payments in the amount of 30% of the advance payment base price will be payable on the Option Aircraft in accordance with paragraph 3 of Attachment A. The remainder of the Option Aircraft purchase price is due at the time of delivery of the Option Aircraft.

5. Option Exercise.

5.1 To exercise its Option, Buyer will give written or telegraphic notice thereof to Boeing on or before sixteen (16) months prior to the first day of the delivery month of each Option Aircraft.

In such notice Buyer will select the Option Model type, and the applicable delivery positions.

5.2 It is understood and agreed that Boeing may accelerate the Option exercise dates specified above if Boeing must make production decisions which are dependent on Buyer's decision to buy the Option Aircraft. If Boeing elects to accelerate the Option exercise dates, Boeing will do so by giving written or telegraphic notice thereof to Buyer. Such notice will specify the revised Option exercise dates, which will not be earlier than 30 days after the date of transmittal of such notice, and the Option Aircraft delivery positions affected by such revision. If Buyer fails to exercise its Option for any Option Aircraft affected by such revised dates, the Deposit applicable to such Option Aircraft will be promptly refunded, with interest, to Buyer. The interest rate for calculation of the interest associated with such refund is the rate of two percent (2%) below the Citibank base rate in effect from time to time during the period the Option deposit is held by Boeing.

P.A. No. 1810
K/SWA                                                      SA-26
Southwest Airlines Co.

6-1162-RLL-933R17 Page 8


6. Contract Terms.

It is understood that Boeing and Buyer will use their best efforts to enter into a definitive agreement for the Option Aircraft within thirty (30) days after Buyer exercises an Option to purchase Option Aircraft pursuant to paragraph 5 covering the detailed terms and conditions for the sale of such Option Aircraft.

Such definitive agreement will include the terms and conditions contained herein together with the terms and conditions, not inconsistent herewith, contained in Boeing's then-current standard form of purchase agreement for the sale of Model 737-700 aircraft in effect as of the date of Option exercise and such additional terms and conditions as may be mutually agreed upon. In the event the parties have not entered into such an agreement within the time period contemplated herein, either party may, exercisable by written or telegraphic notice given to the other within thirty (30) days after such period, terminate the purchase of such Option Aircraft.

7. Termination of Option to Purchase.

Either Boeing or Buyer may terminate the Options to purchase an Option Aircraft if any of the following events are not accomplished by the respective dates contemplated in this letter agreement, or in the Agreement, as the case may be:

(i) termination of the purchase of the Aircraft under the Agreement for any reason;

(ii) payment by Buyer of the Deposit with respect to an Option Aircraft pursuant to paragraph 4.1 herein;

(iii) exercise of an Option to purchase an Option Aircraft pursuant to the terms hereof.

Any termination of an Option to purchase by Boeing which is based on the termination of the purchase of Aircraft under the Agreement will be on a one -for-one basis, for each Aircraft so terminated.

P.A. No. 1810
K/SWA SA-26


Southwest Airlines Co.
6-1162-RLL-933R17 Page 9

Any cancellation of an Option to purchase which is based on failure to make the required Deposit or to exercise the Option to purchase shall only apply to the Option Aircraft so canceled.

Termination of an Option to purchase provided by this letter agreement will be caused by either party giving written notice to the other within 10 days after the applicable date. Upon receipt of such notice, all rights and obligations of the parties with respect to an Option Aircraft for which the Option to purchase has been terminate will thereupon terminate.

If termination is result of a revision of an Option exercise date by Boeing pursuant to paragraph 5.2, Boeing will promptly refund to Buyer, with interest, any payments received from Buyer, including the Deposit, with respect to the Option Aircraft for which the Option is terminated. If termination is for any other reason, Boeing will promptly refund to Buyer, without interest, any payments received from Buyer with respect to the affected Option Aircraft, except the Deposit, which Buyer may apply to any model Boeing aircraft purchased by Buyer from Boeing at a future date.

P.A. No. 1810
K/SWA SA-26


Southwest Airlines Co.
6-1162-RLL-933R17 Page 10

8. Confidential Treatment. Buyer understands that certain commercial and financial information contained in this Letter Agreement including any attachments hereto is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity except as provided in Letter Agreement No. 6-1162-RLL -934, as amended. Very truly yours,

THE BOEING COMPANY

By /s/ J. A. McGarvey

Its Attorney-In-Fact


ACCEPTED AND AGREED TO this

date:February 26, 2003

SOUTHWEST AIRLINES CO.

By /s/ Laura Wright

Its V.P. Finance & Treasurer

Attachments

P.A. No. 1810
K/SWA SA-26


Attachment A to
6-1162-RLL-933R17

Model 737-7H4 Aircraft

1. Option Aircraft Description and Changes.

1.1 Aircraft Description. The Option Aircraft is described by Boeing Detail Specification D6-38808-1, Dated October 30 ,1996 and for Block "U" Option Aircraft by Boeing Detail Specification D6-38808-1, Rev. A, Dated February 24, 1998.

1.2 Changes. The Detail Specification will be revised to include:

(1) Changes applicable to the basic Model 737-700 aircraft which are developed by Boeing between the date of the Detail Specification and the signing of a definitive agreement to purchase the Option Aircraft.

(2) Changes mutually agreed upon.

(3) Changes required to obtain a Standard Certificate of Airworthiness.

(4) To provide sufficient Option Aircraft manufacturing and procurement lead time it is necessary for Boeing and Buyer to reach final agreement on the Option Aircraft configuration, including BFE/SPE vendor selection fifteen (15) months prior to delivery of each Option Aircraft. If such items are not resolved by the indicated dates, Boeing reserves the right to amend this letter agreement:

(i) to adjust the scheduled delivery of the Option Aircraft to a later time period and,

(ii) to make such other changes as are appropriate and consistent with the revised Option Aircraft deliveries.

1.3 Effect of Changes. Changes to the Detail Specification incorporated pursuant to the provisions of the clauses above will include the effects of such changes upon Option Aircraft weight, balance, design and performance. Performance guarantees for the Option Aircraft which are mutually acceptable to the parties will be included in the definitive agreement for the Option Aircraft.

P.A. No. 1810
K/SWA SA-26


Attachment A to
6-1162-RLL-933R17
Page 2

2. Price Description

2.1 Price Elements Per Aircraft

                     1                 2            3

                AIRCRAFT &
                ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL                ESTIMATED    BASE PRICE
DELIVERY        FEATURES PRICE     ESTIMATED    ESCALATION   (ELEMENTS)
MO. & YR.       (JULY 1999$)      ESCALATION    SHARING       1 + 2 + 3
BLOCK M

June 2004           ***               ***          ***            ***
July 2004           ***               ***          ***            ***
September 2004      ***               ***          ***            ***
October 2004        ***               ***          ***            ***
November 2004       ***               ***          ***            ***
December 2004       ***               ***          ***            ***

BLOCK N

February 2005       ***               ***          ***            ***
March 2005          ***               ***          ***            ***
April 2005          ***               ***          ***            ***
May 2005            ***               ***          ***            ***
June 2005           ***               ***          ***            ***
July 2005           ***               ***          ***            ***
August 2005         ***               ***          ***            ***
September 2005      ***               ***          ***            ***
October 2005        ***               ***          ***            ***
November 2005       ***               ***          ***            ***
December 2005       ***               ***          ***            ***

BLOCK O

January 2006        ***               ***          ***            ***
March 2006          ***               ***          ***            ***
April 2006          ***               ***          ***            ***
May 2006            ***               ***          ***            ***
June 2006           ***               ***          ***            ***
July 2006           ***               ***          ***            ***
August 2006         ***               ***          ***            ***
October 2006        ***               ***          ***            ***
November 2006       ***               ***          ***            ***
December 2006       ***               ***          ***            ***

P.A. No. 1810
K/SWA SA-26


Attachment A to
6-1162-RLL-933R17

Page 3
                AIRCRAFT &
                ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL                ESTIMATED    BASE PRICE
DELIVERY        FEATURES PRICE     ESTIMATED    ESCALATION   (ELEMENTS)
MO. & YR.       (JULY 1992$)      ESCALATION    SHARING       1 + 2 + 3
BLOCK P

April 2007         ***                ***          ***            ***
May 2007           ***                ***          ***            ***
June 2007          ***                ***          ***            ***
July 2007          ***                ***          ***            ***
August 2007        ***                ***          ***            ***
September 2007     ***                ***          ***            ***
October 2007       ***                ***          ***            ***
November 2007      ***                ***          ***            ***
December 2007      ***                ***          ***            ***

                AIRCRAFT &
                ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL                ESTIMATED    BASE PRICE
DELIVERY        FEATURES PRICE     ESTIMATED    ESCALATION   (ELEMENTS)
MO. & YR.       (JULY 1999$)      ESCALATION    SHARING       1 + 2 + 3
BLOCK U

January 2008       ***                ***          ***            ***
February 2008    ***                ***          ***            ***
March 2008             ***                ***          ***            ***
April 2008             ***                ***          ***            ***
May 2008               ***                ***          ***            ***
June 2008              ***                ***          ***            ***
July 2008              ***                ***          ***            ***
August 2008            ***                ***          ***            ***
September 2008   ***                ***          ***            ***
October 2008     ***                ***          ***            ***
November 2008    ***                ***          ***            ***
December 2008      ***                ***          ***            ***

2.2 Price Adjustments For Option Aircraft Delivering From January 2007 through December 2012.

P.A. No. 1810
K/SWA SA-26


Attachment A to
6-1162-RLL-933R17
Page 4

            2.2.1       Special Features.  The price for Special Features

incorporated in the Option Aircraft Detail Specification will be adjusted to Boeing's then-current prices for such features as of the date of execution of the definitive agreement for the Option Aircraft.

2.2.2 Escalation Adjustments. For escalation provisions applicable to Option Aircraft delivering after 2006, see paragraph 2.2.6 below.

2.2.3 Base Price Adjustments for FAA Changes. The Aircraft Basic Price of the Option Aircraft will be adjusted for any FAA mandated changes incorporated into the Aircraft.

2.2.4 Price Adjustments for Changes. Boeing may adjust the Aircraft Basic Price and the Advance Payment Base Price for any changes mutually agreed upon subsequent to the date that Buyer and Boeing enter into a definitive agreement for the Option Aircraft.

2.2.5 Base Price Adjustments. The Aircraft Basic Price of the Option Aircraft will be adjusted to Boeing's then-current prices as of the date of execution of the definitive agreement for the Option Aircraft in accordance with the agreement reached below. The Aircraft Basic Price starting point for Option Aircraft delivering in 2003 is *** (July 1992 STE), for Option Aircraft delivering in 2004 is *** (July 1992 STE), for Optionss delivering in 2005 through 2009 is *** (July 1992 STE) and for Block "U" Option Aircraft is *** (July 1999 STE). Such Aircraft Basic Price may increase in accordance with paragraphs 2.2.1, 2.2.2, 2.2.3 and 2.2.4. For any other changes to the Aircraft Basic Price, Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1992 STE) for Aircraft delivering in 2005; by a maximum of *** (July 1992 STE) per year or portion thereof starting in January 2006 through 2009. For Block "U" Option Aircraft Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1999 STE) per year or portion thereof starting in January 2008.

2.2.6 Prices for Long Lead Time Aircraft. Boeing has not established escalation provisions for Model 737-700 aircraft for delivery 2007 and after. Such escalation provisions (i) will be incorporated into the Option Aircraft definitive agreement when such information is available and
(ii) will be the then-current escalation provisions applicable to the same model aircraft and engines delivering in the same time period as the Option Aircraft. The resulting revisions to the definitive agreement will include but not be limited to, adjustment of the Aircraft Basic Price of the Option Aircraft, the Advance Payment Base Price, the Aircraft escalation provisions and the advance payment amounts due on the Option Aircraft.

2.2.7 BFE to SPE. An estimate of the total price for items of Buyer Furnished Equipment (BFE) changed to Seller Purchased Equipment (SPE) pursuant to the Configuration Specification is included in the Option Aircraft price build-up. The purchase price of the Option Aircraft will be adjusted by the price charged to Boeing for such items plus 10% of such price. If all BFE except developmental avionics is converted to SPE, Boeing will waive the 10% fee.

P.A. No. 1810
K/SWA SA-26


Attachment A to
6-1162-RLL-933R17

Page 5

3. Advance Payment Schedules, Prices and Adjustments.

3.1 Buyer will pay to Boeing advance payments for the Option Aircraft on the dates and in the amounts determined below.

                                             Amount Due per Aircraft
                                                (Percentage times
Due Date of Payment                        Advance Payment Base Price)
Deposit                                         ***(if applicable)

18 months prior to the first                    15% (less the
day of the scheduled delivery                          Deposit if any)
month of the Aircraft

12 months prior to the first                    5%
day of the scheduled delivery
month of the Aircraft

9 months prior to the first                     5%
day of the scheduled delivery
month of the Aircraft

6 months prior to the first                     5%
day of the scheduled delivery
month of the Aircraft

      Total                                    30%

Any advance payments that would be past due as of the date of signing the definitive purchase agreement for the Option Aircraft in accordance with the above schedule are due and payable on such date.

3.2 Option Aircraft advance payment base prices will be increased or decreased, as appropriate, at the time of signing of the definitive purchase agreement for the Option Aircraft, using the then-current forecasted aircraft escalation factors used by Boeing, to determine the amount of the advance payments to be made by Buyer on the Option Aircraft.


Supplemental Agreement No. 27

to

Purchase Agreement No. 1810

between

THE BOEING COMPANY

and

SOUTHWEST AIRLINES CO.

Relating to Boeing Model 737-7H4 Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of March 27, 2003, by and between THE BOEING COMPANY, a Delaware corporation with its principal offices in Seattle, Washington, (Boeing) and SOUTHWEST AIRLINES CO., a Texas corporation with its principal offices in Dallas, Texas (Buyer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 1810 dated January 19, 1994, relating to Boeing Model 737-7H4 aircraft (the Agreement) and;

WHEREAS, Buyer has agreed to exercise two (2) July 2004 Block M Option Aircraft (as Block K Aircraft) and;

WHEREAS, Boeing and Buyer have agreed to revise the language of the third "WHEREAS" found in Supplemental Agreement 26 dated February 26, 2003;

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties agree to amend the Agreement as follows:

1. Revise the language of the third "WHEREAS" found in Supplemental Agreement 26 dated February 26, 2003 by deleting the word Option such that the phrase reads:
"WHEREAS, Buyer has agreed to accelerate a Block L Aircraft from April 2003 to March 2003.

***Pursuant to 17 CFR 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission.

P.A. No. 1810 SA-27-1
K/SWA


2. The Table of Contents of the Agreement is deleted in its entirety and a new Table of Contents is attached hereto and incorporated into the Agreement by this reference.

3. Article 2, entitled "Delivery, Title and Risk of Loss," is deleted in its entirety and replaced by a new Article 2. Such new pages 2-1, 2-2, 2-3 and 2-4 are attached hereto and incorporated into the Agreement by this reference.

4. Article 3, entitled "Price of Aircraft", is deleted in its entirety and replaced by a new Article 3. Such new pages 3-1, 3-2, 3-3, 3-4, 3-5 and 3-6 are attached hereto and incorporated into the Agreement by this reference.

5. Letter Agreement No. 6-1162-RLL-933R17 entitled "Option Aircraft," is deleted in its entirety and replaced by a new Letter Agreement No. 6-1162- RLL-933R18 which is attached hereto and is incorporated into the Agreement by this reference. NOTE - Buyer now has ten (10) 'banked' Rollover Option Aircraft as a result of the option exercises covered by Supplemental Agreement No. 21, 23, 24, 26 and 27 that may be converted to Option Aircraft at a future date subject to the terms of Letter Agreement No. 6-1162-RLL-933R18.

6. All references in the Letter Agreements associated with Purchase Agreement No. 1810 shall be deemed to refer to the purchase by Buyer of two hundred forty-four(246) Model 737-7H4 Aircraft, seventy-seven (77) Model 737-7H4 Option Aircraft and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft, to the extent such reference is not specifically addressed herein.

7. The Advance Payments due upon signing assuming execution of this Supplemental Agreement in March 2003 are:

*** for the July 2004 aircraft
*** for the July 2004 aircraft
*** Total

Buyer will pay the *** directly to Boeing upon execution of this
agreement.

P.A. No. 1810                     SA-27-2

K/SWA


The Agreement will be deemed to be supplemented to the extent herein provided and as so supplemented will continue in full force and effect.

EXECUTED IN DUPLICATE as of the day and year first above written.

THE BOEING COMPANY SOUTHWEST AIRLINES CO.

By:  /s/ J. A. McGarvey             By: /s/ Laura Wright

Its:    Attorney-In-Fact            Its: V.P. Finance &  Treasurer

P.A. No. 1810 SA-27-3
K/SWA


                             TABLE OF CONTENTS


                                                            Page           SA
                                                          Number       Number

ARTICLES

1.                 Subject Matter of Sale................... 1-1        SA-13

2.                 Delivery, Title and Risk of Loss......... 2-1        SA-27

3.                 Price of Aircraft........................ 3-1        SA-27

4.                 Taxes.................................... 4-1

5.                 Payment.................................. 5-1

6.                 Excusable Delay.......................... 6-1

7.                 Changes to the Detail Specification...... 7-1         SA-1

8.                 Federal Aviation Requirements and
                   Certificates and Export License.......... 8-1

9.                 Representatives, Inspection, Flights
                   and Test Data............................ 9-1

10.                Assignment, Resale or Lease............. 10-1

11.                Termination for Certain Events.......... 11-1

12.                Product Assurance; Disclaimer and
                   Release; Exclusion of Liabilities;
                   Customer Support; Indemnification
                   and Insurance........................... 12-1

13.                Buyer Furnished Equipment and
                   Spare Parts............................. 13-1

14.                Contractual Notices and Requests........ 14-1

15.                Miscellaneous........................... 15-1

P.A. No. 1810 i
K/SWA SA-27


                             TABLE OF CONTENTS CON'T


                                                                           SA
                                                                       Number

EXHIBITS

A                  Aircraft Configuration                               SA-13

B                  Product Assurance Document                            SA-1

C                  Customer Support Document

D                  Price Adjustments Due to Economic Fluctuations -
                   Aircraft                                             SA-13

E                  Buyer Furnished Equipment Provisions Document

F                  Defined Terms Document





LETTER AGREEMENTS


1810-1             Waiver of Aircraft Demonstration Flight

P.A. No. 1810 ii
K/SWA SA-27


                             TABLE OF CONTENTS CON'T

                                                                           SA
                                                                       Number
RESTRICTED LETTER AGREEMENTS
6-1162-RLL-932R2        Promotional Support                             SA-13

6-1162-RLL-933R18       Option Aircraft                                 SA-27

6-1162-RLL-934R3        Disclosure of Confidential                      SA-14
                        Information

6-1162-RLL-935R1        Performance Guarantees                           SA-1

6-1162-RLL-936R4        Certain Contractual Matters                      SA-4

6-1162-RLL-937          Alternate Advance Payment Schedule

6-1162-RLL-938          ***

6-1162-RLL-939R1        Certification Flight Test Aircraft               SA-1

6-1162-RLL-940R1        Training Matters                                 SA-1

6-1162-RLL-941R2        Other Matters                                   SA-13

6-1162-RLL-942          Open Configuration Matters

6-1162-RLL-943R1        Substitution Rights                              SA-6

6-1162-RLL-944          Airframe Maintenance Material Cost
                        Protection Program

6-1162-RLL-945          Comparison of 737-7H4 and 737-3H4
                        Block Fuel Burn

6-1162-RLL-1855R3       Additional Contractual Matters                   SA-4

6-1162-RLL-1856         ***                                              SA-1

6-1162-RLL-1857         Service Ready Validation Program                 SA-1
                        Field Test

6-1162-RLL-1858R1       Escalation Matters                               SA-4

P.A. No. 1810 iii
K/SWA SA-27


                             TABLE OF CONTENTS CON'T


                                                                           SA
                                                                       Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-2036    Amortization of Costs for Customer
                   Unique Changes                                        SA-1

6-1162-RLL-2037    Reconciliation of the Aircraft                        SA-1
                   Basic Price

6-1162-RLL-2073    Maintenance Training Matters                          SA-1

6-1162-KJJ-054     Business Matters                                     SA-13

6-1162-KJJ-055R1   Structural Matters                                   SA-25

6-1162-KJJ-056     Noise and Emission Matters                           SA-13

6-1162-KJJ-057     Product Development Matters                          SA-13

6-1162-KJJ-058     Additional Substitution Rights                       SA-13

6-1162-KJJ-150     Flight Control Computer & Mode                       SA-14
                   Control Panel Spares Matter

6-1162-MSA-185R3   Delivery Change Contractual                          SA-21
                   Matters

P.A. No. 1810 iv
K/SWA SA-27


ARTICLE 2. Delivery, Title and Risk of Loss.

2.1 Time of Delivery. The Aircraft will be delivered to Buyer by Boeing, assembled and ready for flight and Buyer will accept delivery of the Aircraft, in accordance with the following schedule:

      Month and Year
        of Delivery                         Quantity of Aircraft

                        Block E Aircraft
      December 2000                         Two (2)
      January 2001                          One (1)
      February 2001                         One (1)
      March 2001                            Two (2)
      June 2001                             Three (3)
      September 2001                        Three (1)

                        Block F Aircraft

      October 1998                          One (1)
      November 1998                         Two (2)
      December 1998                         Two (2)

                        Block G Aircraft

      March 1999                            Two (2)

                        Block H Aircraft

      June 1999                             Two (2)
      July 1999                             One (1)
      August 1999                           One (1)
      September 1999                        Two (2)
      October 1999                          One (1)
      March 2000                            One (1)
      April 2000                            Two (2)
      September 2000                        One (1)
      October 2000                          Two (2)
      March 2001                            Two (2)
      April 2001                            One (1)
      October 2001                          Three (3)

                   Block I Aircraft

      November 2001                         Two (2)
      December 2001                         One (1)
      January 2002                          One (1)
      March 2002                            Four (4)

P.A. No. 1810                      2-1
K/SWA                                                                   SA-27

      April 2002                            Two (2)
      December 2002                         Two (2)
      May 2003                              One (1)
      June 2003                             Two (2)
      July 2003                             One (1)
      September 2003                        Two (2)
      October 2003                          Two (2)

                   Block J Aircraft

      November 2002                         One (1)
      December 2002                         One (1)
      November 2003                         Two (2)
      December 2003                         Two (2)
      March 2004                            One (1)

                   Block K Aircraft

      March 2004                            One (1)
      April 2004                            Three (3)
      May 2004                              One (1)
      June 2004                             Two (2)
      July 2004                             Two (2)

                   Block L Aircraft

      October 1999                          One (1)
      November 1999                         Two (2)
      December 1999                         One (1)
      June 2000                             Three (3)
      July 2000                             Three (3)
      September 2000                        One (1)
      October 2000                          One (1)
      November 2000                         Four (4)
      December 2000                         One (1)
      January 2001                          One (1)
      February 2001                         One (1)
      July 2001                             One (1)
      September 2001                        One (1)
      October 2001                          One (1)
      March 2003                            Two (2)
      July 2003                             One (1)
      August 2003                           Two (2)

                   Block T Aircraft

      November 2001                         One (1)
      February 2002                         One (1)
      January 2004                          Two (2)
      May 2004                              One (1)
      June 2004                             Three (3)
      July 2004                             One (1)
      August 2004                           Two (2)
      September 2004                        Three (3)

P.A. No. 1810                      2-2
K/SWA                                                                   SA-27

      October 2004                          One (1)
      November 2004                         One (1)
      December 2004                         One (1)
      January 2005                          Five (5)
      February 2005                         Two (2)
      March 2005                            One (1)
      April 2005                            Two (2)
      May 2005                              One (1)
      June 2005                             Three (3)
      July 2005                             Two (2)
      August 2005                           One (1)
      September 2005                        Two (2)
      October 2005                          One (1)
      November 2005                         Two (2)
      December 2005                         Two (2)
      February 2006                         Four (4)
      May 2006                              Three (3)
      June 2006                             Four (4)
      July 2006                             One (1)
      August 2006                           Three (3)
      September 2006                        Three (3)
      November 2006                         Two (2)
      December 2006                         Two (2)
      January 2007                          Two (2)
      February 2007                         Three (3)
      March 2007                            Two (2)
      April 2007                            Two (2)
      May 2007                              Two (2)
      June 2007                             Two (2)
      July 2007                             Two (2)
      August 2007                           Two (2)
      September 2007                        Two (2)
      October 2007                          Two (2)
      November 2007                         Two (2)
      December 2007                         Two (2)
      January 2008                          One (1)
      February 2008                         One (1)
      March 2008                            One (1)
      April 2008                            One (1)
      May 2008                              One (1)
      June 2008                             One (1)

2.2 Notice of Target Delivery Date. Boeing will give Buyer notice of the Target Delivery Date of the Aircraft approximately 30 days prior to the scheduled month of delivery.

2.3 Notice of Delivery Date. If Boeing gives Buyer at least 7 days' notice of the delivery date of the Aircraft, and an Aircraft delivery is delayed beyond such delivery date due to the responsibility of Buyer, Buyer will reimburse Boeing for all costs incurred by Boeing as a result of such delay, including amounts for storage, insurance, Taxes, preservation or protection of the Aircraft and interest on payments due.

P.A. No. 1810 2-3
K/SWA SA-27


2.4 Place of Delivery. The Aircraft will be delivered at an airport facility selected by Boeing in the State of Washington, unless mutually agreed otherwise.

2.5 Title and Risk of Loss. Title to and risk of loss of an Aircraft will pass from Boeing to Buyer upon delivery of such Aircraft, but not prior thereto.

2.6 Bill of Sale. Upon delivery of an Aircraft Boeing will deliver to Buyer a bill of sale conveying good title to such Aircraft, free of all liens, claims, charges and encumbrances of every kind whatsoever, and such other appropriate documents of title as Buyer may reasonably request.

P.A. No. 1810 2-4
K/SWA SA-27


ARTICLE 3. Price of Aircraft.

3.1 Definitions.

3.1.1 Special Features are the features incorporated in Exhibit A which have been selected by Buyer.

3.1.2 Base Aircraft Price is the Aircraft Basic Price excluding the price of Special Features.

3.1.3 Aircraft Basic Price is comprised of the Base Aircraft Price and the price of the Special Features.

3.1.4 Economic Price Adjustment is the adjustment to the Aircraft Basic Price (Base Aircraft and Special Features) as calculated pursuant to Exhibit D or Exhibit D-1 as applicable.

3.1.5 Aircraft Price is the total amount Buyer is to pay for the Aircraft at the time of delivery.

3.2 Aircraft Basic Price.

The Aircraft Basic Price for Block A through L Aircraft, is expressed in July 1992 dollars; the Aircraft Basic Price for Block T Aircraft, is expressed in July 1999 dollars; as set forth below:

                        Base                Special             Aircraft
                        Aircraft Price      Features            Basic Price
Block A, B, C,          ***                 ***                 ***
D & E Aircraft
Block F & G             ***                 ***                 ***
Aircraft
Block H                 ***                 ***                 ***
Aircraft
Block I                 ***                 ***                 ***
Aircraft
Block J                 ***                 ***                 ***
Aircraft
Block K                 ***                 ***                 ***
Aircraft
Block L                 ***                 ***                 ***
Aircraft


Block T                 ***                 ***                 ***
Aircraft

P.A. No. 1810 3-1
K/SWA SA-27


3.3 Aircraft Price. The Aircraft Price will be established at the time of delivery of such Aircraft to Buyer and will be the sum of:

3.3.1 the Aircraft Basic Price, which is *** for the Block A, B, C, D and E Aircraft, *** for the Block F and G Aircraft, *** for the Block H Aircraft, *** for the Block I Aircraft, *** for the Block J Aircraft, *** for the Block K Aircraft and *** for the Block L Aircraft; *** for the Block T Aircraft; plus

3.3.2 the Economic Price Adjustments for the Aircraft Basic Price, as calculated pursuant to the formulas set forth in Exhibit D (Price Adjustments Due to Economic Fluctuations - Aircraft) for Aircraft Block A through L, and in Exhibit D-1 (Price Adjustments Due to Economic Fluctuations
- Aircraft) for Aircraft Block T; plus

3.3.3 other price adjustments made pursuant to this Agreement or other written agreements executed by Boeing and Buyer.

3.4 Advance Payment Base Price.

3.4.1 Advance Payment Base Price. For advance payment purposes, the following estimated delivery prices of the Aircraft (Advance Payment Base Price) have been established, using currently available forecasts of the escalation factors used by Boeing as of the date of signing this Agreement. The Advance Payment Base Price of each Aircraft is set forth below:

      Month and Year of                     Advance Payment Base
      Scheduled Delivery                    Price per Aircraft

                        Block A Aircraft***

      October 1997
      November 1997


                        Block B Aircraft***

      January 1998
      February 1998
      March 1998
      April 1998
      May 1998
      June 1998
      July 1998
      September 1998

                        Block C Aircraft***

P.A. No. 1810                      3-2
K/SWA                                                                   SA-27

      February 1999
      May 1999
      July 1999
      August 1999
      September 1999

                        Block D Aircraft***

      November 1999
      December 1999
      January 2000
      March 2000
      July 2000
      August 2000

                        Block E Aircraft***

      December 2000
      January 2001
      February 2001
      March 2001
      June 2001
      September 2001

                        Block F Aircraft***

      October 1998
      November 1998
      December 1998

                        Block G Aircraft***

      March 1999

                        Block H Aircraft***

      June 1999
      July 1999
      August 1999
      September 1999
      October 1999
      March 2000
      April 2000
      September 2000
      October 2000
      March 2001
      April 2001
      October 2001

                        Block I Aircraft***

      November 2001
      December 2001

P.A. No. 1810                      3-3
K/SWA                                                                   SA-27

      January 2002
      March 2002
      April 2002
      December 2002
      May 2003
      June 2003
      July 2003
      September 2003
      October 2003

                        Block J Aircraft***

      November 2002
      December 2002
      November 2003
      December 2003
      March 2004

                        Block K Aircraft***

      March 2004
      April 2004
      May 2004
      June 2004
      July 2004

                        Block L Aircraft***

      October 1999
      November 1999
      December 1999
      June 2000
      July 2000
      September 2000
      October 2000
      November 2000
      December 2000
      January 2001
      February 2001
      July 2001
      September 2001
      October 2001
      March 2003
      July 2003
      August 2003

Block T Aircraft***

      November 2001
      February 2002
      January 2004
      May 2004
      June 2004
      July 2004
      August 2004

P.A. No. 1810                      3-4
K/SWA                                                                   SA-27

      September 2004
      October 2004
      November 2004
      December 2004
      January 2005
      February 2005
      March 2005
      April 2005
      May 2005
      June 2005
      July 2005
      August 2005
      September 2005
      October 2005
      November 2005
      December 2005
      February 2006
      May 2006
      June 2006
      July 2006
      August 2006
      September 2006
      November 2006
      December 2006
      January 2007
      February 2007
      March 2007
      April 2007
      May 2007
      June 2007
      July 2007
      August 2007
      September 2007
      October 2007
      November 2007
      December 2007
      January 2008
      February 2008
      March 2008
      April 2008
      May 2008
      June 2008

3.4.2 Adjustment of Advance Payment Base Prices - Long-Lead Aircraft. For Aircraft scheduled for delivery 36 months or more after the date of this Agreement, the Advance Payment Base Prices appearing in Article 3.4.1 will be used to determine the amount of the first advance payment to be made by Buyer on the Aircraft. No later than 25 months before the scheduled month of delivery of each affected Aircraft, Boeing will increase or decrease the Advance Payment Base Price of such Aircraft as required to reflect the effects of (i) any adjustments in the Aircraft Basic Price pursuant to this

P.A. No. 1810 3-5
K/SWA SA-27


Agreement and (ii) the then-current forecasted escalation factors used by Boeing. Boeing will provide the adjusted Advance Payment Base Prices for each affected Aircraft to Buyer, and the advance payment schedule will be considered amended to substitute such adjusted Advance Payment Base Prices.

P.A. No. 1810                      3-6
K/SWA                                                                   SA-27

6-1162-RLL-933R18


Southwest Airlines Co.
P.O. Box 36611 - Love Field
Dallas, Texas  75235

Subject:      Letter Agreement No. 6-1162-RLL-933R18 to
              Purchase Agreement No. 1810 -
              Option Aircraft

This Letter Agreement amends Purchase Agreement No. 1810 dated as of January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737-7H4 aircraft (Aircraft).

All terms used and not defined herein will have the same meaning as in the Agreement.

In consideration of the purchase by Buyer of the Aircraft, Boeing hereby agrees to manufacture and sell to Buyer and Buyer shall have the option to purchase (Option or Options) seventy-seven (77) additional Model 737-7H4 aircraft as described in paragraph 1 of Attachment A hereto (Option Aircraft) and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft (Rollover Option Aircraft), subject to the terms and conditions set forth below.

1. Delivery of Option Aircraft.

The Option Aircraft will be delivered to Buyer during or before the months set forth in the following schedule:

                                       Number of      Option
      Month and Year                   Option         Aircraft
      of Delivery                      Aircraft       Block
      September 2004                   One (1)           M
      October 2004                     Four (4)          M
      November 2004                    Two (2)           M
      December 2004                    Two (2)           M

P.A. No. 1810
K/SWA                                                                   SA-27

Southwest Airlines Co.
6-1162-RLL-933R18    Page 2
                                       Number of      Option
      Month and Year                   Option         Aircraft
      of Delivery                      Aircraft       Block

      February 2005                    One (1)           N
      March 2005                       Four (4)          N
      April 2005                       Two (2)           N
      May 2005                         One (1)           N
      June 2005                        One (1)           N
      July 2005                        One (1)           N
      August 2005                      One (1)           N
      September 2005                   Three (3)         N
      October 2005                     Two (2)           N
      November 2005                    One (1)           N
      December 2005                    One (1)           N

      January 2006                     Two (2)           O
      March 2006                       Three (3)         O
      April 2006                       Two (2)           O
      May 2006                         Two (2)           O
      June 2006                        One (1)           O
      July 2006                        Two (2)           O
      August 2006                      One (1)           O
      October 2006                     One (1)           O
      November 2006                    One (1)           O
      December 2006                    One (1)           O

      April 2007                       One (1)           P
      May 2007                         One (1)           P
      June 2007                        One (1)           P
      July 2007                        One (1)           P
      August 2007                      One (1)           P
      September 2007                   One (1)           P
      October 2007                     One (1)           P
      November 2007                    One (1)           P
      December 2007                    One (1)           P

      January 2008                     Two (2)           U
      February 2008                    Three (3)         U
      March 2008                       Two (2)           U
      April 2008                       Two (2)           U
      May 2008                         Two (2)           U
      June 2008                        Two (2)           U
      July 2008                        Two (2)           U
      August 2008                      Two (2)           U
      September 2008                   Two (2)           U
      October 2008                     Two (2)           U
      November 2008                    Two (2)           U
      December 2008                    Two (2)           U

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 3

2. Delivery of Rollover Option Aircraft.

2.1 The Rollover Option Aircraft will be delivered to Buyer during or before the years set forth in the following schedule:

                                           Option
Year of           Number of                Aircraft
Delivery          Option Aircraft          Block
2007              Twenty (20)                Q
2008              Twenty (20)                R
2009              Six (6)                    S
2009-2012         One hundred seventy one    V
                  (171)

2.2 The two hundred seventeen (217) Rollover Option Aircraft may be converted into Option Aircraft or firm Aircraft, from time to time, in any of the following ways:

2.2.1 Buyer can exercise any Option for an Option Aircraft described in Article 1 above, and will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each Option exercised. Buyer can elect to convert such Rollover Option Aircraft into an Option Aircraft at any time after converting an Option Aircraft to a firm Aircraft subject to the requirements of Article 2.5.

2.2.2 If Buyer elects not to exercise an Option, at the same time of not exercising such Option Buyer may convert one Rollover Option Aircraft to an Option Aircraft; otherwise, one Rollover Option Aircraft will be deleted for each Option not exercised by Buyer.

2.2.3 Buyer may convert Rollover Option Aircraft directly to firm Aircraft. When Buyer converts one or more Rollover Option Aircraft to firm Aircraft, Buyer will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each converted Rollover Option Aircraft. Buyer can elect to convert such Rollover Option Aircraft to Option Aircraft at any time after converting Rollover Option to firm Aircraft subject to the requirements of Article 2.5.

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 4

2.3 Buyer may not convert Rollover Option Aircraft to Option Aircraft except in accordance with Article 2.2 above.

2.4 Base Price Adjustments for Rollover Option Aircraft which are converted to Option Aircraft or firm Aircraft shall be in accordance with Article 2.2.5 of Attachment A to this Letter Agreement.

2.5 The delivery month offered by Boeing to Buyer for any Option or firm Aircraft resulting from a conversion of a Rollover Option Aircraft will be at least 24 months from the corresponding Option exercise date or firm order.

2.6 Upon conversion of a Rollover Option Aircraft into an Option Aircraft, Buyer shall wire transfer the Deposit of *** to Boeing and Boeing and Buyer shall agree on a delivery position for that aircraft. Section 1 of this Letter Agreement will be amended accordingly. In the event Buyer thereafter exercises its right to purchase such Option Aircraft, application of the Deposit will be in accordance with Article 4.1 herein. If the conversion is a Rollover Option Aircraft to a firm Aircraft, Buyer shall wire transfer any advance payments due under the Agreement.

2.7 Buyer and Boeing will consult on a frequent basis to keep each other informed as to Buyer's fleet plans and Boeing's production plans in order to accommodate to the greatest extent reasonably possible each party's needs in managing the delivery schedule for the Rollover Option Aircraft. Boeing acknowledges Buyer's need for delivery positions in the 2007-2012 time frame, as well as the possibility of a need for delivery positions in earlier years and will use its best reasonable efforts to meet Buyer's needs.

3. Price.

3.1 The advance payment base prices of the Option Aircraft set forth below and in paragraph 2.1 of Attachment A represent the estimated delivery prices of the Option Aircraft. The Option Aircraft pricing elements and associated pricing terms and conditions are given in Attachment A.

3.2 Price and escalation provisions for Model 737-7H4 aircraft delivering after 2006 are not currently available. The estimated Advance Payment Base Prices shown in paragraph 3.3 below and in paragraph 2.1 of

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 5

Attachment A are based on currently available price and escalation provisions. As price and escalation provisions become available for Model 737-7H4 aircraft delivering after 2006, such price and escalation provisions will be appropriately applied to the applicable Option Aircraft. For additional information relating to price and escalation provisions applicable to Option Aircraft delivering after 2006 refer to paragraphs 2.2 and 3.2 of Attachment A.

3.3 The Advance Payment Base Prices of the Option Aircraft indicated below do include an amount for special features in addition to those specifically described in Attachment A but do not include any amount for items of Buyer Furnished Equipment (BFE). An estimate for typical special features is *** per Aircraft (expresssed in 1992 STE dollars) and for BFE is *** per Aircraft (expressed in delivery year dollars).

      Month and Year                        Advance Payment Base
      of Delivery                           Price per Option Aircraft

                        Block M Aircraft***

      September 2004
      October 2004
      November 2004
      December 2004

                        Block N Aircraft***

      February 2005
      March 2005
      April 2005
      May 2005
      June 2005
      July 2005
      August 2005
      September 2005
      October 2005
      November 2005
      December 2005

                        Block O Aircraft***

      January 2006
      March 2006
      April 2006
      May 2006
      June 2006
      July 2006


P.A. No. 1810
K/SWA                                                                   SA-27

Southwest Airlines Co.
6-1162-RLL-933R18    Page 6


      August 2006
      October 2006
      November 2006
      December 2006

                        Block P Aircraft***

      April 2007
      May 2007
      June 2007
      July 2007
      August 2007
      September 2007
      October 2007
      November 2007
      December 2007

                        Block U Aircraft***

      January 2008
      February 2008
      March 2008
      April 2008
      May 2008
      June 2008
      July 2008
      August 2008
      September 2008
      October 2008
      November 2008
      December 2008

3.4 The Option Aircraft purchase price will be the applicable basic price thereof at the time of Option Aircraft delivery adjusted in accordance with Boeing's Aircraft escalation provisions contained in the definitive agreement to purchase the Option Aircraft. The purchase price will include the price for Seller Purchased Equipment (SPE) if Buyer has elected to change Buyer Furnished Equipment (BFE) to SPE.

4. Option Aircraft Payment.

4.1 In consideration of the granting of the Options as set forth herein, on or before the date Boeing and Buyer enter into a definitive agreement to purchase the Aircraft, Buyer will pay a deposit to Boeing of *** for each Option Aircraft (Deposit). In the event Buyer exercises its Options herein, the amount of the Deposit will be credited against the first advance payment due for such Option Aircraft pursuant to the advance payment schedule set forth in paragraph

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 7

3 of Attachment A. The Deposits for the Option Aircraft will be refunded to Buyer, without interest, if the parties do not enter into a definitive Agreement for the Aircraft.

In the event that, after the parties enter into a definitive agreement to purchase the Aircraft, Buyer does not exercise its Options to purchase the Option Aircraft pursuant to the terms and conditions set forth herein, Boeing will be entitled to retain the Deposits for the Option Aiircraft except as provided in paragraph 6 herein.

4.2 Advance payments in the amount of 30% of the advance payment base price will be payable on the Option Aircraft in accordance with paragraph 3 of Attachment A. The remainder of the Option Aircraft purchase price is due at the time of delivery of the Option Aircraft.

5. Option Exercise.

5.1 To exercise its Option, Buyer will give written or telegraphic notice thereof to Boeing on or before sixteen (16) months prior to the first day of the delivery month of each Option Aircraft.

In such notice Buyer will select the Option Model type, and the applicable delivery positions.

5.2 It is understood and agreed that Boeing may accelerate the Option exercise dates specified above if Boeing must make production decisions which are dependent on Buyer's decision to buy the Option Aircraft. If Boeing elects to accelerate the Option exercise dates, Boeing will do so by giving written or telegraphic notice thereof to Buyer. Such notice will specify the revised Option exercise dates, which will not be earlier than 30 days after the date of transmittal of such notice, and the Option Aircraft delivery positions affected by such revision. If Buyer fails to exercise its Option for any Option Aircraft affected by such revised dates, the Deposit applicable to such Option Aircraft will be promptly refunded, with interest, to Buyer. The interest rate for calculation of the interest associated with such refund is the rate of two percent (2%) below the Citibank base rate in effect from time to time during the period the Option deposit is held by Boeing.

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 8

6. Contract Terms.

It is understood that Boeing and Buyer will use their best efforts to enter into a definitive agreement for the Option Aircraft within thirty (30) days after Buyer exercises an Option to purchase Option Aircraft pursuant to paragraph 5 covering the detailed terms and conditions for the sale of such Option Aircraft.

Such definitive agreement will include the terms and conditions contained herein together with the terms and conditions, not inconsistent herewith, contained in Boeing's then-current standard form of purchase agreement for the sale of Model 7737-700 aircraft in effect as of the date of Option exercise and such additional terms and conditions as may be mutually agreed upon. In the event the parties have not entered into such an agreement within the time period contemplated herein, either party may, exercisable by written or telegraphic notice given to the other within thirty (30) days after such period, terminate the purchase of such Option Aircraft.

7. Termination of Option to Purchase.

Either Boeing or Buyer may terminate the Options to purchase an Option Aircraft if any of the following events are not accomplished by the respective dates contemplated in this letter agreement, or in the Agreement, as the case may be:

(i) termination of the purchase of the Aircraft under the Agreement for any reason;

(ii) payment by Buyer of the Deposit with respect to an Option Aircraft pursuant to paragraph 4.1 herein;

(iii) exercise of an Option to purchase an Option Aircraft pursuant to the terms hereof.

Any termination of an Option to purchase by Boeing which is based on the termination of the purchase of Aircraft under the Agreement will be on a one- for-one basis, for each Aircraft so terminated.

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 9

Any cancellation of an Option to purchase which is based on failure to make the required Deposit or to exercise the Option to purchase shall only apply to the Option Aircraft so canceled.

Termination of an Option to purchase provided by this letter agreement will be caused by either party giving written notice to the other within 10 days after the applicable date. Upon receipt of such notice, all rights and obligations of the parties with respect to an Option Aircraft for which the Option to purchase has been terminate will thereupon terminate.

If termination is result of a revision of an Option exercise date by Boeing pursuant to paragraph 5.2, Boeing will promptly refund to Buyer, with interest, any payments received from Buyer, including the Deposit, with respect to the Option Aircraft for which the Option is terminated. If termination is for any other reason, Boeing will promptly refund to Buyer, without interest, any payments received from Buyer with respect to the affected Option Aircraft, except the Deposit, which Buyer may apply to any model Boeing aircraft purchased by Buyer from Boeing at a future date.

P.A. No. 1810
K/SWA SA-27


Southwest Airlines Co.
6-1162-RLL-933R18 Page 10

8. Confidential Treatment. Buyer understands that certain commercial and financial information contained in this Letter Agreement including any attachments hereto is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity except as provided in Letter Agreement No. 6-1162-RLL- 934, as amended. Very truly yours,

THE BOEING COMPANY

By /s/ J. A. McGarvey

Its Attorney-In-Fact


ACCEPTED AND AGREED TO this

date:March 27, 2003

SOUTHWEST AIRLINES CO.

By /s/ Laura Wright

Its V.P. Finance & Treasurer

Attachments


Attachment A to
6-1162-RLL-933R18

Page 1

Model 737-7H4 Aircraft

1. Option Aircraft Description and Changes.

1.1 Aircraft Description. The Option Aircraft is described by Boeing Detail Specification D6-38808-1, Dated October 30 ,1996 and for Block "U" Option Aircraft by Boeing Detail Specification D6-38808-1, Rev. A, Dated February 24, 1998.

1.2 Changes. The Detail Specification will be revised to include:

(1) Changes applicable to the basic Model 737-700 aircraft which are developed by Boeing between the date of the Detail Specification and the signing of a definitive agreement to purchase the Option Aircraft.

(2) Changes mutually agreed upon.

(3) Changes required to obtain a Standard Certificate of Airworthiness.

(4) To provide sufficient Option Aircraft manufacturing and procurement lead time it is necessary for Boeing and Buyer to reach final agreement on the Option Aircraft configuration, including BFE/SPE vendor selection fifteen (15) months prior to delivery of each Option Aircraft. If such items are not resolved by the indicated dates, Boeing reserves the right to amend this letter agreement:

(i) to adjust the scheduled delivery of the Option Aircraft to a later time period and,

(ii) to make such other changes as are appropriate and consistent with the revised Option Aircraft deliveries.

1.3 Effect of Changes. Changes to the Detail Specification incorporated pursuant to the provisions of the clauses above will include the effects of such changes upon Option Aircraft weight, balance, design and performance. Performance guarantees for the Option Aircraft which are mutually acceptable to the parties will be included in the definitive agreement for the Option Aircraft.

P.A. No. 1810
K/SWA SA-27


Attachment A to
6-1162-RLL-933R18

Page 2

2. Price Description

2.1 Price Elements Per Aircraft

                     1                2         3

                  AIRCRAFT &
                  ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL             ESTIMATED  BASE PRICE
DELIVERY        FEATURES PRICE    ESTIMATED  ESCALATION (ELEMENTS)
MO. & YR.       (JULY 1999$)     ESCALATION  SHARING     1 + 2 + 3
BLOCK M

September 2004      ***               ***     ***            ***
October 2004        ***               ***     ***            ***
November 2004       ***               ***     ***            ***
December 2004       ***               ***     ***            ***

BLOCK N

February 2005       ***               ***     ***            ***
March 2005          ***               ***     ***            ***
April 2005          ***               ***     ***            ***
May 2005            ***               ***     ***            ***
June 2005           ***               ***     ***            ***
July 2005           ***               ***     ***            ***
August 2005         ***               ***     ***            ***
September 2005      ***               ***     ***            ***
October 2005        ***               ***     ***            ***
November 2005       ***               ***     ***            ***
December 2005       ***               ***     ***            ***

BLOCK O

January 2006        ***               ***     ***            ***
March 2006          ***               ***     ***            ***
April 2006          ***               ***     ***            ***
May 2006            ***               ***     ***            ***
June 2006           ***               ***     ***            ***
July 2006           ***               ***     ***            ***
August 2006         ***               ***     ***            ***
October 2006        ***               ***     ***            ***
November 2006       ***               ***     ***            ***
December 2006       ***               ***     ***            ***

                  AIRCRAFT &
                  ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL             ESTIMATED  BASE PRICE
DELIVERY        FEATURES PRICE    ESTIMATED  ESCALATION (ELEMENTS)
MO. & YR.       (JULY 1992$)     ESCALATION  SHARING     1 + 2 + 3

P.A. No. 1810
K/SWA                                                           SA-27

Attachment A to
6-1162-RLL-933R18
Page 3

BLOCK P
April 2007          ***               ***     ***            ***
May 2007            ***               ***     ***            ***
June 2007           ***               ***     ***            ***
July 2007           ***               ***     ***            ***
August 2007         ***               ***     ***            ***
September 2007      ***               ***     ***            ***
October 2007        ***               ***     ***            ***
November 2007       ***               ***     ***            ***
December 2007       ***               ***     ***            ***

                  AIRCRAFT &
                  ADV. PMT.
AIRCRAFT       ESTIMATED SPECIAL             ESTIMATED  BASE PRICE
DELIVERY        FEATURES PRICE    ESTIMATED  ESCALATION (ELEMENTS)
MO. & YR.       (JULY 1999$)     ESCALATION  SHARING     1 + 2 + 3

BLOCK U
January 2008        ***               ***     ***            ***
February 2008       ***               ***     ***            ***
March 2008          ***               ***     ***            ***
April 2008          ***               ***     ***            ***
May 2008            ***               ***     ***            ***
June 2008           ***               ***     ***            ***
July 2008           ***               ***     ***            ***
August 2008         ***               ***     ***            ***
September 2008      ***               ***     ***            ***
October 2008        ***               ***     ***            ***
November 2008       ***               ***     ***            ***
December 2008       ***               ***     ***            ***

2.2 Price Adjustments For Option Aircraft Delivering From January 2007 through December 2012.

2.2.1 Special Features. The price for Special Features incorporated in the Option Aircraft Detail Specification will be adjusted to Boeing's then-current prices for such features as of the date of execution of the definitive agreement for the Option Aircraft.

2.2.2 Escalation Adjustments. For escalation provisions applicable to Option Aircraft delivering after 2006, see paragraph 2.2.6 below.

P.A. No. 1810
K/SWA SA-27


Attachment A to
6-1162-RLL-933R18
Page 4

            2.2.3  Base Price Adjustments for FAA Changes.  The Aircraft

Basic Price of the Option Aircraft will be adjusted for any FAA mandated changes incorporated into the Aircraft.

2.2.4 Price Adjustments for Changes. Boeing may adjust the Aircraft Basic Price and the Advance Payment Base Price for any changes mutually agreed upon subsequent to the date that Buyer and Boeing enter into a definitive agreement for the Option Aircraft.

2.2.5 Base Price Adjustments. The Aircraft Basic Price of the Option Aircraft will be adjusted to Boeing's then-current prices as of the date of execution of the definitive agreement for the Option Aircraft in accordance with the agreement reached below. The Aircraft Basic Price starting point for Option Aircraft delivering in 2003 is *** (July 1992 STE), for Option Aircraft delivering in 2004 is *** (July 1992 STE), for Optionss delivering in 2005 through 2009 is *** (July 1992 STE) and for Block "U" Option Aircraft is *** (July 1999 STE). Such Aircraft Basic Price may increase in accordance with paragraphs 2.2.1, 2.2.2, 2.2.3 and 2.2.4. For any other changes to the Aircraft Basic Price, Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1992 STE) for Aircraft delivering in 2005; by a maximum of *** (July 1992 STE) per year or portion thereof starting in January 2006 through 2009. For Block "U" Option Aircraft Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1999 STE) per year or portion thereof starting in January 2008.

2.2.6 Prices for Long Lead Time Aircraft. Boeing has not established escalation provisions for Model 737-700 aircraft for delivery 2007 and after. Such escalation provisions (i) will be incorporated into the Option Aircraft definitive agreement when such information is available and
(ii) will be the then-current escalation provisions applicable to the same model aircraft and engines delivering in the same time period as the Option Aircraft. The resulting revisions to the definitive agreement will include but not be limited to, adjustment of the Aircraft Basic Price of the Option Aircraft, the Advance Payment Base Price, the Aircraft escalation provisions and the advance payment amounts due on the Option Aircraft.

2.2.7 BFE to SPE. An estimate of the total price for items of Buyer Furnished Equipment (BFE) changed to Seller Purchased Equipment (SPE) pursuant to the Configuration Specification is included in the Option Aircraft price build-up. The purchase price of the Option Aircraft will be adjusted by the price charged to Boeing for such items plus 10% of such price. If all BFE except developmental avionics is converted to SPE, Boeing will waive the 10% fee.

P.A. No. 1810
K/SWA SA-27


Attachment A to
6-1162-RLL-933R18
Page 5

3. Advance Payment Schedules, Prices and Adjustments.

3.1 Buyer will pay to Boeing advance payments for the Option Aircraft on the dates and in the amounts determined below.

                                            Amount Due per Aircraft
                                              (Percentage times
Due Date of Payment                       Advance Payment Base Price)

Deposit                                          ***(if applicable)
18 months prior to the first                     15% (less the
day of the scheduled delivery                    Deposit if any)
month of the Aircraft

12 months prior to the first                     5%
day of the scheduled delivery
month of the Aircraft

9 months prior to the first                      5%
day of the scheduled delivery
month of the Aircraft

6 months prior to the first                      5%
day of the scheduled delivery
month of the Aircraft

              Total                             30%

Any advance payments that would be past due as of the date of signing the definitive purchase agreement for the Option Aircraft in accordance with the above schedule are due and payable on such date.

3.2 Option Aircraft advance payment base prices will be increased or decreased, as appropriate, at the time of signing of the definitive purchase agreement for the Option Aircraft, using the then-current forecasted aircraft escalation factors used by Boeing, to determine the amount of the advance payments to be made by Buyer on the Option Aircraft.

P.A. No. 1810
K/SWA SA-27


Supplemental Agreement No. 28

to

Purchase Agreement No. 1810

between

THE BOEING COMPANY

and

SOUTHWEST AIRLINES CO.

Relating to Boeing Model 737-7H4 Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of June 6, 2003, by and between THE BOEING COMPANY, a Delaware corporation with its principal offices in Seattle, Washington, (Boeing) and SOUTHWEST AIRLINES CO., a Texas corporation with its principal offices in Dallas, Texas (Buyer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 1810 dated January 19, 1994, relating to Boeing Model 737-7H4 aircraft (the Agreement) and;

WHEREAS, Buyer has agreed to exercise one (1) September 2004 Block M Option Aircraft (as Block K Aircraft) and;

WHEREAS, Buyer has agreed to accelerate Block I Aircraft, one (1) September 2003 to August 2003 and two (2) October 2003 to September 2003 and;

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties agree to amend the Agreement as follows:

1. The Table of Contents of the Agreement is deleted in its entirety and a new Table of Contents is attached hereto and incorporated into the Agreement by this reference.

***Pursuant to 17 CFR 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission.

P.A. No.1810 SA-28-1
K/SWA


2. Article 2, entitled "Delivery, Title and Risk of Loss," is deleted in its entirety and replaced by a new Article 2. Such new pages 2-1, 2-2, 2-3 and 2-4 are attached hereto and incorporated into the Agreement by this reference.

3. Article 3, entitled "Price of Aircraft", is deleted in its entirety and replaced by a new Article 3. Such new pages 3-1, 3-2, 3-3, 3-4, 3-5 and 3-6 are attached hereto and incorporated into the Agreement by this reference.

4. Letter Agreement No. 6-1162-RLL-933R18 entitled "Option Aircraft," is deleted in its entirety and replaced by a new Letter Agreement No. 6-1162- RLL-933R19 which is attached hereto and is incorporated into the Agreement by this reference. NOTE - Buyer now has eleven (11) 'banked' Rollover Option Aircraft as a result of the option exercises covered by Supplemental Agreement No. 21, 23, 24, 26, 27 and 28 that may be converted to Option Aircraft at a future date subject to the terms of Letter Agreement No. 6-1162-RLL-933R19.

5. The Agreement is amended by adding Table 1 and Table 2 to the Agreement, attached hereto and incorporated herein by this reference.

6. All references in the Letter Agreements associated with Purchase Agreement No. 1810 shall be deemed to refer to the purchase by Buyer of two hundred forty-four(247) Model 737-7H4 Aircraft, seventy-six (76) Model 737- 7H4 Option Aircraft and two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft, to the extent such reference is not specifically addressed herein.

7. The Advance Payments due upon signing assuming execution of this Supplemental Agreement in May 2003 are:

***for the September 2004 aircraft

Buyer will pay the *** directly to Boeing upon execution of this agreement.

The Agreement will be deemed to be supplemented to the extent herein provided and as so supplemented will continue in full force and effect.

EXECUTED IN DUPLICATE as of the day and year first above written.

P.A. No.1810                      SA-28-2
K/SWA

THE BOEING COMPANY                      SOUTHWEST AIRLINES CO.



By:  /s/ J. A. McGarvey                 By: /s/ Laura Wright

Its:    Attorney-In-Fact                Its:_V.P. Finance & Treasurer

P.A. No.1810 SA-28-3
K/SWA


                                  TABLE OF CONTENTS

                                                             Page         SA
                                                           Number     Number

ARTICLES

1.      Subject Matter of Sale............................... 1-1      SA-13

2.      Delivery, Title and Risk of Loss                      2-1      SA-28

3.      Price of Aircraft                                     3-1      SA-28

4.      Taxes                                                 4-1

5.      Payment                                               5-1

6.      Excusable Delay                                       6-1

7.      Changes to the Detail Specification                   7-1      SA-1

8.      Federal Aviation Requirements and
        Certificates and Export License                       8-1

9.      Representatives, Inspection, Flights and Test Data... 9-1

10.      Assignment, Resale or Lease........................ 10-1

11.      Termination for Certain Events..................... 11-1

12.      Product Assurance; Disclaimer and Release;
         Exclusion of Liabilities; Customer Support;
         Indemnification and Insurance....................... 12-1

13.      Buyer Furnished Equipment and Spare Parts........... 13-1

14.      Contractual Notices and Requests.................... 14-1

15.      Miscellaneous....................................... 15-1

P.A. No. 1810 i
K/SWA SA-28


TABLE OF CONTENTS CON'T


                                                                SA
                                                            Number

TABLE
1.            Aircraft Information Table                     SA-28

2.            Option Aircraft Information Table              SA-28

EXHIBITS


A             Aircraft Configuration                         SA-13

B             Product Assurance Document                     SA-1

C             Customer Support Document

D             Price Adjustments Due to
              Economic Fluctuations - Aircraft               SA-13

E             Buyer Furnished Equipment
              Provisions Document

F             Defined Terms Document





LETTER AGREEMENTS


1810-1        Waiver of Aircraft Demonstration Flight

P.A. No. 1810 ii
K/SWA SA-28


TABLE OF CONTENTS CON'T

                                                                SA
                                                            Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-932R2       Promotional Support                  SA-13

6-1162-RLL-933R19      Option Aircraft                      SA-28

6-1162-RLL-934R3       Disclosure of Confidential           SA-14
                       Information

6-1162-RLL-935R1       Performance Guarantees               SA-1

6-1162-RLL-936R4       Certain Contractual Matters          SA-4

6-1162-RLL-937         Alternate Advance Payment Schedule

6-1162-RLL-938         ***

6-1162-RLL-939R1      Certification Flight Test Aircraft    SA-1

6-1162-RLL-940R1      Training Matters                      SA-1

6-1162-RLL-941R2      Other Matters                         SA-13

6-1162-RLL-942        Open Configuration Matters

6-1162-RLL-943R1      Substitution Rights                   SA-6

6-1162-RLL-944        Airframe Maintenance Material Cost
                      Protection Program

6-1162-RLL-945        Comparison of 737-7H4 and 737-3H4
                      Block Fuel Burn

6-1162-RLL-1855R3     Additional Contractual Matters        SA-4

6-1162-RLL-1856       ***                                   SA-1

6-1162-RLL-1857       Service Ready Validation Program      SA-1
                      Field Test

6-1162-RLL-1858R1     Escalation Matters                    SA-4

P.A. No. 1810 iii
K/SWA SA-28


                                  TABLE OF CONTENTS CON'T


                                                                SA
                                                            Number
RESTRICTED LETTER AGREEMENTS

6-1162-RLL-2036       Amortization of Costs for
                      Customer Unique Changes               SA-1

6-1162-RLL-2037       Reconciliation of the Aircraft
                      Basic Price                           SA-1

6-1162-RLL-2073       Maintenance Training Matters          SA-1

6-1162-KJJ-054        Business Matters                      SA-13

6-1162-KJJ-055R1      Structural Matters                    SA-25

6-1162-KJJ-056        Noise and Emission Matters            SA-13

6-1162-KJJ-057        Product Development Matters           SA-13

6-1162-KJJ-058        Additional Substitution Rights        SA-13

6-1162-KJJ-150        Flight Control Computer & Mode        SA-14
                      Control Panel Spares Matter

6-1162-MSA-185R3      Delivery Change Contractual           SA-21
                      Matters

P.A. No. 1810 iv
K/SWA SA-28


ARTICLE 2. Delivery, Title and Risk of Loss.

2.1 Time of Delivery. The Aircraft will be delivered to Buyer by Boeing, assembled and ready for flight and Buyer will accept delivery of the Aircraft, in accordance with the schedule contained in Table 1.

2.2 Notice of Target Delivery Date. Boeing will give Buyer notice of the Target Delivery Date of the Aircraft approximately 30 days prior to the scheduled month of delivery.

2.3 Notice of Delivery Date. If Boeing gives Buyer at least 7 days' notice of the delivery date of the Aircraft, and an Aircraft delivery is delayed beyond such delivery date due to the responsibility of Buyer, Buyer will reimburse Boeing for all costs incurred by Boeing as a result of such delay, including amounts for storage, insurance, Taxes, preservation or protection of the Aircraft and interest on payments due.

2.4 Place of Delivery. The Aircraft will be delivered at an airport facility selected by Boeing in the State of Washington, unless mutually agreed otherwise.

2.5 Title and Risk of Loss. Title to and risk of loss of an Aircraft will pass from Boeing to Buyer upon delivery of such Aircraft, but not prior thereto.

2.6 Bill of Sale. Upon delivery of an Aircraft Boeing will deliver to Buyer a bill of sale conveying good title to such Aircraft, free of all liens, claims, charges and encumbrances of every kind whatsoever, and such other appropriate documents of title as Buyer may reasonably request.

P.A. No. 1810 2-1
K/SWA SA-28


ARTICLE 3. Price of Aircraft.

3.1 Definitions.

3.1.1 Special Features are the features incorporated in Exhibit A which have been selected by Buyer.

3.1.2 Base Aircraft Price is the Aircraft Basic Price excluding the price of Special Features.

3.1.3 Aircraft Basic Price is comprised of the Base Aircraft Price and the price of the Special Features.

3.1.4 Economic Price Adjustment is the adjustment to the Aircraft Basic Price (Base Aircraft and Special Features) as calculated pursuant to Exhibit D or Exhibit D-1 as applicable.

3.1.5 Aircraft Price is the total amount Buyer is to pay for the Aircraft at the time of delivery.

3.2 Aircraft Basic Price.

The Aircraft Basic Price for Block A through L Aircraft, is expressed in July 1992 dollars; the Aircraft Basic Price for Block T Aircraft, is expressed in July 1999 dollars; as set forth in Table 1 of the Agreement.

3.3 Aircraft Price. The Aircraft Price will be established at the time of delivery of such Aircraft to Buyer and will be the sum of:

3.3.1 the Aircraft Basic Price, which is *** for the Block A, B, C, D and E Aircraft, *** for the Block F and G Aircraft, *** for the Block H Aircraft, *** for the Block I Aircraft, *** for the Block J Aircraft, *** for the Block K Aircraft and *** for the Block L Aircraft; *** for the Block T Aircraft; plus

3.3.2 the Economic Price Adjustments for the Aircraft Basic Price, as calculated pursuant to the formulas set forth in Exhibit D (Price Adjustments Due to Economic Fluctuations - Aircraft) for Aircraft Block A through L, and in Exhibit D-1 (Price Adjustments Due to Economic Fluctuations
- Aircraft) for Aircraft Block T; plus

3.3.3 other price adjustments made pursuant to this Agreement or other written agreements executed by Boeing and Buyer.

3.4 Advance Payment Base Price.

P.A. No. 1810 3-1
K/SWA SA-28


3.4.1 Advance Payment Base Price. For advance payment purposes, the following estimated delivery prices of the Aircraft (Advance Payment Base Price) have been established, using currently available forecasts of the escalation factors used by Boeing as of the date of signing this Agreement. The Advance Payment Base Price of each Aircraft is set forth in Table 1.

3.4.2 Adjustment of Advance Payment Base Prices - Long-Lead Aircraft. For Aircraft scheduled for delivery 36 months or more after the date of this Agreement, the Advance Payment Base Prices appearing in Table 1 will be used to determine the amount of the first advance payment to be made by Buyer on the Aircraft. No later than 25 months before the scheduled month of delivery of each affected Aircraft, Boeing will increase or decrease the Advance Payment Base Price of such Aircraft as required to reflect the effects of (i) any adjustments in the Aircraft Basic Price pursuant to this Agreement and
(ii) the then-current forecasted escalation factors used by Boeing. Boeing will provide the adjusted Advance Payment Base Prices for each affected Aircraft to Buyer, and the advance payment schedule will be considered amended to substitute such adjusted Advance Payment Base Prices.

P.A. No. 1810 3-2
K/SWA SA-28


6-1162-RLL-933R19


Southwest Airlines Co.
P.O. Box 36611 - Love Field
Dallas, Texas  75235

Subject:      Letter Agreement No. 6-1162-RLL-933R19 to
              Purchase Agreement No. 1810 -
              Option Aircraft

This Letter Agreement amends Purchase Agreement No. 1810 dated as of January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737-7H4 aircraft (Aircraft).

All terms used and not defined herein will have the same meaning as in the Agreement.

In consideration of the purchase by Buyer of the Aircraft, Boeing hereby agrees to manufacture and sell to Buyer and Buyer shall have the option to purchase (Option or Options) the additional Model 737-7H4 aircraft as described in paragraph 1 of Attachment A hereto and listed in Table 2 of the Agreement(Option Aircraft) and Model 737-7H4 Rollover Option Aircraft summarized in Table 2 of the Agreement (Rollover Option Aircraft), subject to the terms and conditions set forth below.

1. Delivery of Option Aircraft.

The Option Aircraft will be delivered to Buyer during or before the months set forth in Table 2 of the Agreement.

2. Delivery of Rollover Option Aircraft.

2.1 The Rollover Option Aircraft will be delivered to Buyer during or before the years set forth in Table 2 of the Agreement.

2.2 The Rollover Option Aircraft may be converted into Option Aircraft or firm Aircraft, from time to time, in any of the following ways:

2.2.1 Buyer can exercise any Option for an Option Aircraft described in Article 1 above, and will be offered the right to convert one

P.A. No. 1810
K/SWA SA-28


Southwest Airlines Co.
6-1162-RLL-933R19 Page 2

Rollover Option Aircraft into an Option Aircraft for each Option exercised. Buyer can elect to convert such Rollover Option Aircraft into an Option Aircraft at any time after converting an Option Aircraft to a firm Aircraft subject to the requirements of Article 2.5.

2.2.2 If Buyer elects not to exercise an Option, at the same time of not exercising such Option Buyer may convert one Rollover Option Aircraft to an Option Aircraft; otherwise, one Rollover Option Aircraft will be deleted for each Option not exercised by Buyer.

2.2.3 Buyer may convert Rollover Option Aircraft directly to firm Aircraft. When Buyer converts one or more Rollover Option Aircraft to firm Aircraft, Buyer will be offered the right to convert one Rollover Option Aircraft into an Option Aircraft for each converted Rollover Option Aircraft. Buyer can elect to convert such Rollover Option Aircraft to Option Aircraft at any time after converting Rollover Option to firm Aircraft subject to the requirements of Article 2.5.

2.3 Buyer may not convert Rollover Option Aircraft to Option Aircraft except in accordance with Article 2.2 above.

2.4 Base Price Adjustments for Rollover Option Aircraft which are converted to Option Aircraft or firm Aircraft shall be in accordance with Article 2.2.5 of Attachment A to this Letter Agreement.

2.5 The delivery month offered by Boeing to Buyer for any Option or firm Aircraft resuulting from a conversion of a Rollover Option Aircraft will be at least 24 months from the corresponding Option exercise date or firm order.

2.6 Upon conversion of a Rollover Option Aircraft into an Option Aircraft, Buyer shall wire transfer the Deposit of *** to Boeing and Boeing and Buyer shall agree on a delivery position for that aircraft. Section 1 of this Letter Agreement will be amended accordingly. In the event Buyer thereafter exercises its right to purchase such Option Aircraft, application of the Deposit will be in accordance with Article 4.1 herein. If the conversion is a Rollover Option Aircraft to a firm Aircraft, Buyer shall wire transfer any advance payments due under the Agreement.

P.A. No. 1810
K/SWA SA-28


Southwest Airlines Co.
6-1162-RLL-933R19 Page 3

2.7 Buyer and Boeing will consult on a frequent basis to keep each other informed as to Buyer's fleet plans and Boeing's production plans in order to accommodate to the greatest extent reasonably possible each party's needs in managing the delivery schedule for the Rollover Option Aircraft. Boeing acknowledges Buyer's need for delivery positions in the 2007-2012 time frame, as well as the possibility of a need for delivery positions in earlier years and will use its best reasonable efforts to meet Buyer's needs.

3. Price.

3.1 The advance payment base prices of the Option Aircraft set forth below and in paragraph 2.1 of Attachment A represent the estimated delivery prices of the Option Aircraft. The Option Aircraft pricing elements and associated pricing terms and conditions are given in Attachment A.

3.2 Price and escalation provisions for Model 737-7H4 aircraft delivering after 2006 are not currently available. The estimated Advance Payment Base Prices shown in paragraph 3.3 below and in paragraph 2.1 of Attachment A are based on currently available price and escalation provisions. As price and escalation provisions become available for Model 737-7H4 aircraft delivering after 2006, such price and escalation provisions will be appropriately applied to the applicable Option Aircraft.

For additional information relating to price and escalation provisions applicable to Option Aircraft delivering after 2006 refer to paragraphs 2.2 and 3.2 of Attachment A.

3.3 The Advance Payment Base Prices of the Option Aircraft indicated below do include an amount for special features in addition to those specifically described in Attachment A but do not include any amount for items of Buyer Furnished Equipment (BFE). An estimate for typical special features is *** per Aircraft (expressed in 1992 STE dollars) or *** per Aircraft (expressed in 1999 STE dollars) and for BFE is *** per Aircraft (expressed in delivery year dollars). Table 2 in the Agreement lists the Advance Payment Base Price per Option Aircraft.

3.4 The Option Aircraft purchase price will be the applicable basic price thereof at the time of Option Aircraft delivery adjusted in accordance

P.A. No. 1810
K/SWA SA-28


Southwest Airlines Co.
6-1162-RLL-933R19 Page 4

with Boeing's Aircraft escalation provisions contained in the definitive agreement to purchase the Option Aircraft. The purchase price will include the price for Seller Purchased Equipment (SPE) if Buyer has elected to change Buyer Furnished Equipment (BFE) to SPE.

4. Option Aircraft Payment.

4.1 In consideration of the granting of the Options as set forth herein, on or before the date Boeing and Buyer enter into a definitive agreement to purchase the Aircraft, Buyer will pay a deposit to Boeing of *** for each Option Aircraft (Deposit). In the event Buyer exercises its Options herein, the amount of the Deposit will be credited against the first advance payment due for such Option Aircraft pursuant to the advance payment schedule set forth in paragraph 3 of Attachment A. The Deposits for the Option Aircraft will be refunded to Buyer, without interest, if the parties do not enter into a definitive Agreement for the Aircraft.

In the event that, after the parties enter into a definitive agreement to purchase the Aircraft, Buyer does not exercise its Options to purchase the Option Aircraft pursuant to the terms and conditions set forth herein, Boeing will be entitled to retain the Deposits for the Option Aircraft except as provided in paragraph 6 herein.

4.2 Advance payments in the amount of 30% of the advance payment base price will be payable on the Option Aircraft in accordance with paragraph 3 of Attachment A. The remainder of the Option Aircraft purchase price is due at the time of delivery of the Option Aircraft.

5. Option Exercise.

5.1 To exercise its Option, Buyer will give written or telegraphic notice thereof to Boeing on or before sixteen (16) months prior to the first day of the delivery month of each Option Aircraft.

In such notice Buyer will select the Option Model type, and the applicable delivery positions. Table 2 of the Agreement lists the Option Exercise dates.

5.2 It is understood and agreed that Boeing may accelerate the Option exercise dates specified above if Boeing must make production decisions which are dependent on Buyer's decision to buy the Option Aircraft. If Boeing elects to accelerate the Option exercise dates, Boeing will do so by giving written or

P.A. No. 1810
K/SWA SA-28


Southwest Airlines Co.
6-1162-RLL-933R19 Page 5

telegraphic notice thereof to Buyer. Such notice will specify the revised Option exercise dates, which will not be earlier than 30 days after the date of transmittal of such notice, and the Option Aircraft delivery positions affected by such revision. If Buyer fails to exercise its Option for any Option Aircraft affected by such revised dates, the Deposit applicable to such Option Aircraft will be promptly refunded, with interest, to Buyer. The interest rate for calculation of the interest associated with such refund is the rate of two percent (2%) below the Citibank base rate in effect from time to time during the period the Option deposit is held by Boeing.

6. Contract Terms.

It is understood that Boeing and Buyer will use their best efforts to enter into a definittive agreement for the Option Aircraft within thirty (30) days after Buyer exercises an Option to purchase Option Aircraft pursuant to paragraph 5 covering the detailed terms and conditions for the sale of such Option Aircraft.

Such definitive agreement will include the terms and conditions contained herein together with the terms and conditions, not inconsistent herewith, contained in Boeing's then-current standard form of purchase agreement for the sale of Model 737-700 aircraft in effect as of the date of Option exercise and such additional terms and conditions as may be mutually agreed upon. In the event the parties have not entered into such an agreement within the time period contemplated herein, either party may, exercisable by written or telegraphic notice given to the other within thirty (30) days after such period, terminate the purchase of such Option Aircraft.

7. Termination of Option to Purchase.

Either Boeing or Buyer may terminate the Options to purchase an Option Aircraft if any of the following events are not accomplished by the respective dates contemplated in this letter agreement, or in the Agreement, as the case may be:

(i) termination of the purchase of the Aircraft under the Agreement for any reason;

(ii) payment by Buyer of the Deposit with respect to an Option Aircraft pursuant to paragraph 4.1 herein;

P.A. No. 1810
K/SWA SA-28


Southwest Airlines Co.
6-1162-RLL-933R19 Page 6

(iii) exercise of an Option to purchase an Option Aircraft pursuant to the terms hereof.

Any termination of an Option to purchase by Boeing which is based on the termination of the purchase of Aircraft under the Agreement will be on a one- for-one basis, for each Aircraft so terminated.

Any cancellation of an Option to purchase which is based on failure to make the required Deposit or to exercise the Option to purchase shall only apply to the Option Aircraft so canceled.

Termination of an Option to purchase provided by this letter agreement will be caused by either party giving written notice to the other within 10 days after the applicable date. Upon receipt of such notice, all rights and obligations of the parties with respect to an Option Aircraft for which the Option to purchase has been terminate will thereupon terminate. If termination is result of a revision of an Option exercise date by Boeing pursuant to paragraph 5.2, Boeing will promptly refund to Buyer, with interest, any payments received from Buyer, including the Deposit, with respect to the Option Aircraft for which the Option is terminated. If termination is for any other reason, Boeing will promptly refund to Buyer, without interest, any payments received from Buyer with respect to the affected Option Aircraft, except the Deposit, which Buyer may apply to any model Boeing aircraft purchased by Buyer from Boeing at a future date.

P.A. No. 1810
K/SWA SA-28


Southwest Airlines Co.
6-1162-RLL-933R19 Page 7

8. Confidential Treatment. Buyer understands that certain commercial and financial information contained in this Letter Agreement including any attachments hereto is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity except as provided in Letter Agreement No. 6-1162-RLL- 934, as amended.

Very truly yours,

THE BOEING COMPANY

By /s/ J. A. McGarvey

Its Attorney-In-Fact


ACCEPTED AND AGREED TO this

date:June 6, 2003

SOUTHWEST AIRLINES CO.

By /s/ Laura Wright

Its V.P. Finance & Treasurer

Attachments

P.A. No. 1810
K/SWA SA-28


Attachment to
6-1162-RLL-933R19
Page 1

Model 737-7H4 Aircraft

1. Option Aircraft Description and Changes.

1.1 Aircraft Description. The Option Aircraft is described by Boeing Detail Specification D6-38808-1, Dated October 30 ,1996 and for Block "U" Option Aircraft by Boeing Detail Specification D6-38808-1, Rev. A, Dated February 24, 1998.

1.2 Changes. The Detail Specification will be revised to include:

(1) Changes applicable to the basic Model 737-700 aircraft which are developed by Boeing between the date of the Detail Specification and the signing of a definitive agreement to purchase the Option Aircraft.

(2) Changes mutually agreed upon.

(3) Changes required to obtain a Standard Certificate of Airworthiness.

(4) To provide sufficient Option Aircraft manufacturing and procurement lead time it is necessary for Boeing and Buyer to reach final agreement on the Option Aircraft configuration, including BFE/SPE vendor selection fifteen (15) months prior to delivery of each Option Aircraft. If such items are not resolved by the indicated dates, Boeing reserves the right to amend this letter agreement:

(i) to adjust the scheduled delivery of the Option Aircraft to a later time period and,

(ii) to make such other changes as are appropriate and consistent with the revised Option Aircraft deliveries.

1.3 Effect of Changes. Changes to the Detail Specification incorporated pursuant to the provisions of the clauses above will include the effects of such changes upon Option Aircraft weight, balance, design and performance. Performance guarantees for the Option Aircraft which are mutually acceptable to the parties will be included in the definitive agreement for the Option Aircraft.

P.A. No. 1810
K/SWA SA-28


Attachment to
6-1162-RLL-933R19
Page 2

2. Price Description

2.1 Price Elements Per Aircraft. The Aircraft Basic Price detailed in Table 2 of the Agreement is added to the Estimated Escalation and Estimated Escalation Sharing to determine the Advance Payment Base Price of the Option Aircraft (also listed in Table 2 of the Agreement). At the signing of this Letter Agreement, the Estimated Escalation Sharing is zero for all Option Aircraft.

2.2 Price Adjustments For Option Aircraft Delivering From January 2007 through December 2012.

2.2.1 Special Features. The price for Special Features incorporated in the Option Aircraft Detail Specification will be adjusted to Boeing's then-current prices for such features as of the date of execution of the definitive agreement for the Option Aircraft.

2.2.2 Escalation Adjustments. For escalation provisions applicable to Option Aircraft delivering after 2006, see paragraph 2.2.6 below.

2.2.3 Base Price Adjustments for FAA Changes. The Aircraft Basic Price of the Option Aircraft will be adjusted for any FAA mandated changes incorporated into the Aircraft.

2.2.4 Price Adjustments for Changes. Boeing may adjust the Aircraft Basic Price and the Advance Payment Base Price for any changes mutually agreed upon subsequent to the date that Buyer and Boeing enter into a definitive agreement for the Option Aircraft.

2.2.5 Base Price Adjustments. The Aircraft Basic Price of the Option Aircraft will be adjusted to Boeing's then-current prices as of the date of execution of the definitive agreement for the Option Aircraft in accordance with the agreement reached below. The Aircraft Basic Price starting point for Option Aircraft delivering in 2003 is *** (July 1992 STE), for Option Aircraft delivering in 2004 is *** (July 1992 STE), for Optionss delivering in 2005 through 2009 is *** (July 1992 STE) and for Block "U" Option Aircraft is *** (July 1999 STE). Such Aircraft Basic Price may increase in accordance with paragraphs 2.2.1, 2.2.2, 2.2.3 and 2.2.4. For any other changes to the Aircraft Basic Price, Boeing may increase the Aircraft Basic Price by a maximum of *** (July 1992 STE) for Aircraft delivering in 2005; by a maximum of *** (July 1992 STE) per year or portion thereof starting in January 2006 through 2009. For Block "U" Option Aircraft Boeing may increase the Aircraft Basic Price by a maximum of $38,900 (July 1999 STE) per year or portion thereof starting in January 2008.

P.A. No. 1810
K/SWA SA-28


Attachment to
6-1162-RLL-933R19
Page 3

            2.2.6  Prices for Long Lead Time Aircraft.  Boeing has not

established escalation provisions for Model 737-700 aircraft for delivery 2007 and after. Such escalation provisions (i) will be incorporated into the Option Aircraft definitive agreement when such information is available and
(ii) will be the then-current escalation provisions applicable to the same model aircraft and engines delivering in the same time period as the Option Aircraft. The resulting revisions to the definitive agreement will include but not be limited to, adjustment of the Aircraft Basic Price of the Option Aircraft, the Advance Payment Base Price, the Aircraft escalation provisions and the advance payment amounts due on the Option Aircraft.

2.2.7 BFE to SPE. An estimate of the total price for items of Buyer Furnished Equipment (BFE) changed to Seller Purchased Equipment (SPE) pursuant to the Configuration Specification is included in the Option Aircraft price build-up. The purchase price of the Option Aircraft will be adjusted by the price charged to Boeing for such items plus 10% of such price. If all BFE except developmental avionics is converted to SPE, Boeing will waive the 10% fee.

P.A. No. 1810
K/SWA SA-28


Attachment to
6-1162-RLL-933R19
Page 4

3. Advance Payment Schedules, Prices and Adjustments.

3.1 Buyer will pay to Boeing advance payments for the Option Aircraft on the dates and in the amounts determined below.

                                            Amount Due per Aircraft
                                              (Percentage times
Due Date of Payment                       Advance Payment Base Price)

Deposit                                          ***(if applicable)
18 months prior to the first                     15% (less the
day of the scheduled delivery                    Deposit if any)
month of the Aircraft

12 months prior to the first                     5%
day of the scheduled delivery
month of the Aircraft

9 months prior to the first                      5%
day of the scheduled delivery
month of the Aircraft

6 months prior to the first                      5%
day of the scheduled delivery
month of the Aircraft

              Total                             30%

Any advance payments that would be past due as of the date of signing the definitive purchase agreement for the Option Aircraft in accordance with the above schedule are due and payable on such date.

3.2 Option Aircraft advance payment base prices will be increased or decreased, as appropriate, at the time of signing of the definitive purchase agreement for the Option Aircraft, using the then-current forecasted aircraft escalation factors used by Boeing, to determine the amount of the advance payments to be made by Buyer on the Option Aircraft.


Table 1 to
Purchase Agreement No. 1810 Aircraft Information Table

                       Base Aircraft     Special     Aircraft Basic     Base
                          Price         Features         Price          Year
                                                                       Dollars
Block A, B, C, D & E       ***            ***           ***         July 1992
Aircraft
Block F & G Aircraft       ***            ***           ***         July 1992
Block H Aircraft           ***            ***           ***         July 1992
Block I Aircraft           ***            ***           ***         July 1992
Block J Aircraft           ***            ***           ***         July 1992
Block K Aircraft           ***            ***           ***         July 1992
Block L Aircraft           ***            ***           ***         July 1992
Block T Aircraft           ***            ***           ***         July 1999

                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Dec-2000         2            E             ***
Jan-2001         1            E             ***
Feb-2001         1            E             ***
Mar-2001         2            E             ***
Jun-2001         3            E             ***
Sep-2001         3            E             ***
Oct-1998         1            F             ***
Nov-1998         2            F             ***
Dec-1998         2            F             ***
Mar-1999         2            G             ***
Jun-1999         2            H             ***
Jul-1999         1            H             ***
Aug-1999         1            H             ***
Sep-1999         2            H             ***
Oct-1999         1            H             ***
Mar-2000         1            H             ***
Apr-2000         2            H             ***
Sep-2000         1            H             ***
Oct-2000         2            H             ***
Mar-2001         2            H             ***
Apr-2001         1            H             ***
Oct-2001         3            H             ***
Nov-2001         2            I             ***
Dec-2001         1            I             ***
Jan-2002         1            I             ***
Mar-2002         4            I             ***
Apr-2002         2            I             ***
Dec-2002         2            I             ***
May-2003         1            I             ***

SWA Page 1 SA-28


        Table 1 to
Purchase Agreement No. 1810
 Aircraft Information Table

                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Jun-2003         2            I             ***
Jul-2003         1            I             ***
Aug-2003         1            I             ***
Sep-2003         3            I             ***
Nov-2002         1            J             ***
Dec-2002         1            J             ***
Nov-2003         2            J             ***
Dec-2003         2            J             ***
Mar-2004         1            I             ***
Mar-2004         1            K             ***
Apr-2004         3            K             ***
May-2004         1            K             ***
Jun-2004         2            K             ***
Jul-2004         2            K             ***
Sep-2004         1            K             ***
Oct-1999         1            L             ***
Nov-1999         2            L             ***
Dec-1999         1            L             ***
Jun-2000         3            L             ***
Jul-2000         3            L             ***
Sep-2000         1            L             ***
Oct-2000         1            L             ***
Nov-2000         4            L             ***
Dec-2000         1            L             ***
Jan-2001         1            L             ***
Feb-2001         1            L             ***
Jul-2001         1            L             ***
Sep-2001         1            L             ***
Oct-2001         1            L             ***
Mar-2003         2            L             ***
Jul-2003         1            L             ***
Aug-2003         2            L             ***
Nov-2001         1            T             ***
Feb-2002         1            T             ***
Jan-2004         2            T             ***
May-2004         1            T             ***
Jun-2004         3            T             ***
Jul-2004         1            T             ***
Aug-2004         2            T             ***
Sep-2004         3            T             ***
Oct-2004         1            T             ***
Nov-2004         1            T             ***
Dec-2004         1            T             ***
Jan-2005         5            T             ***
Feb-2005         2            T             ***
Mar-2005         1            T             ***
Apr-2005         2            T             ***
May-2005         1            T             ***

SWA Page 2 SA-28


        Table 1 to
Purchase Agreement No. 1810
 Aircraft Information Table

                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Jun-2005         3            T             ***
Jul-2005         2            T             ***
Aug-2005         1            T             ***
Sep-2005         2            T             ***
Oct-2005         1            T             ***
Nov-2005         2            T             ***
Dec-2005         2            T             ***
Feb-2006         4            T             ***
May-2006         3            T             ***
Jun-2006         4            T             ***
Jul-2006         1            T             ***
Aug-2006         3            T             ***
Sep-2006         3            T             ***
Nov-2006         2            T             ***
Dec-2006         2            T             ***
Jan-2007         2            T             ***
Feb-2007         3            T             ***
Mar-2007         2            T             ***
Apr-2007         2            T             ***
May-2007         2            T             ***
Jun-2007         2            T             ***
Jul-2007         2            T             ***
Aug-2007         2            T             ***
Sep-2007         2            T             ***
Oct-2007         2            T             ***
Nov-2007         2            T             ***
Dec-2007         2            T             ***
Jan-2008         1            T             ***
Feb-2008         1            T             ***
Mar-2008         1            T             ***
Apr-2008         1            T             ***
May-2008         1            T             ***
Jun-2008         1            T             ***

SWA Page 3 SA-28


Table 2 to Purchase Agreement No. 1810
(Letter Agreement No. 6-112-RLL-933R19)
   Option Aircraft Information Table

Price Description of Option Aircraft:

                    Base Aircraft      Special     Aircraft Basic     Base Year
                        Price          Features         Price          Dollars
Block M Option                ***             ***          ***      July 1992
Aircraft
Block N Option                ***             ***          ***      July 1992
Aircraft
Block O Option                ***             ***          ***      July 1992
Aircraft
Block P Option                ***             ***          ***      July 1992
Aircraft
Block U Option                ***             ***          ***      July 1999
Aircraft

Delivery of Rollover Option Aircraft:

Year of    Number of    Option Aircraft Block
Delivery    Option
           Aircraft
2007       Twenty (20)            Q
2008       Twenty (20)            R
2009         Six (6)              S
2009-      One Hundred            V
2012       Seventy-One
             (171)

Aircraft       Number of        Option      Adv Payment Base
Delivery        Option          Aircraft       Price Per
Mo. & Yr.      Aircraft          Block       Option Aircraft    Option Exercise
Oct-2004          4               M              ***            June 1, 2003
Nov-2004          2               M              ***            July 1, 2003
Dec-2004          2               M              ***          August 1, 2003
Feb-2005          1               N              ***         October 1, 2003
Mar-2005          4               N              ***        November 1, 2003
Apr-2005          2               N              ***        December 1, 2003
May-2005          1               N              ***         January 1, 2004
Jun-2005          1               N              ***        February 1, 2004
Jul-2005          1               N              ***           March 1, 2004
Aug-2005          1               N              ***           April 1, 2004
Sep-2005          3               N              ***             May 1, 2004
Oct-2005          2               N              ***            June 1, 2004
Nov-2005          1               N              ***            July 1, 2004

SWA Page 1 SA-28


Table 2 to Purchase Agreement No. 1810
(Letter Agreement No. 6-112-RLL-933R19)
   Option Aircraft Information Table

Aircraft       Number of        Option              Adv Payment Base
Delivery        Option          Aircraft       Price Per
Mo. & Yr.      Aircraft          Block      Option Aircraft   Option Exercise
Dec-2005          1               N             ***            August 1, 2004
Jan-2006          2               O             ***         September 1, 2004
Mar-2006          3               O             ***          November 1, 2004
Apr-2006          2               O             ***          December 1, 2004
May-2006          2               O             ***           January 1, 2005
Jun-2006          1               O             ***          February 1, 2005
Jul-2006          2               O             ***             March 1, 2005
Aug-2006          1               O             ***             April 1, 2005
Oct-2006          1               O             ***              June 1, 2005
Nov-2006          1               O             ***              July 1, 2005
Dec-2006          1               O             ***            August 1, 2005
Apr-2007          1               P             ***          December 1, 2005
May-2007          1               P             ***           January 1, 2006
Jun-2007          1               P             ***          February 1, 2006
Jul-2007          1               P             ***             March 1, 2006
Aug-2007          1               P             ***             April 1, 2006
Sep-2007          1               P             ***               May 1, 2006
Oct-2007          1               P             ***              June 1, 2006
Nov-2007          1               P             ***              July 1, 2006
Dec-2007          1               P             ***            August 1, 2006
Jan-2008          2               U             ***         September 1, 2006
Feb-2008          3               U             ***           October 1, 2006
Mar-2008          2               U             ***          November 1, 2006
Apr-2008          2               U             ***          December 1, 2006
May-2008          2               U             ***           January 1, 2007
Jun-2008          2               U             ***          February 1, 2007
Jul-2008          2               U             ***             March 1, 2007
Aug-2008          2               U             ***             April 1, 2007
Sep-2008          2               U             ***               May 1, 2007
Oct-2008          2               U             ***              June 1, 2007
Nov-2008          2               U             ***              July 1, 2007
Dec-2008          2               U             ***            August 1, 2007

SWA Page 2 SA-28


Supplemental Agreement No. 29

to

Purchase Agreement No. 1810

between

THE BOEING COMPANY

and

SOUTHWEST AIRLINES CO.

Relating to Boeing Model 737-7H4 Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of June 30, 2003, by and between THE BOEING COMPANY, a Delaware corporation with its principal offices in Seattle, Washington, (Boeing) and SOUTHWEST AIRLINES CO., a Texas corporation with its principal offices in Dallas, Texas (Buyer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 1810 dated January 19, 1994, relating to Boeing Model 737-7H4 aircraft (the Agreement) and;

WHEREAS, Buyer has agreed to exercise the following Option Aircraft in the following delivery positions as the following blocks and;

Quantity         Option Aircraft         Exercised          Delivery
                                          Delivery            Block
Four (4)         October 2004            October 2004           K
Two (2)          November 2004           November 2004          T
Two (2)          December 2004           December 2004          T
One (1)          March 2005              April 2004             T
One (1)          July 2005               April 2004             T
Two (2)          September 2005          June 2004              T
One (1)          October 2005            June 2004              T
One (1)          December 2005           July 2004              T

***Pursuant to 17 CFR 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission.

P.A. No. 1810 SA-29-1
K/SWA


WHEREAS, Buyer has agreed to accelerate Block T Aircraft, one (1) November 2005 to February 2004 and one (1) December 2005 to April 2004 and;

WHEREAS, Boeing and Buyer have agreed to convert all remaining Block M, N, O, and P Option Aircraft to Block U type pricing and escalation and similarly for all Rollover Option Aircraft and;

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties agree to amend the Agreement as follows:

1. The Table of Contents of the Agreement is deleted in its entirety and a new Table of Contents is attached hereto and incorporated into the Agreement by this reference.

2. Table 1 is deleted in its entirety and replaced by a new Table 1 which is attached hereto and is incorporated into the Agreement by this reference.

3. Table 2 is deleted in its entirety and replaced by a new Table 2 which is attached hereto and is incorporated into the Agreement by this reference. NOTE - Buyer now has twenty-five (25) 'banked' Rollover Option Aircraft as a result of the option exercises covered by Supplemental Agreement No. 21, 23, 24, 26, 27, 28 and 29 that may be converted to Option Aircraft at a future date subject to the terms of Letter Agreement No. 6-1162-RLL-933R19.

4. Letter Agreement No. 6-1162-JMG-669 entitled "Special Matters," is attached hereto and is hereby incorporated into the Agreement by this reference.

5. All references in the Letter Agreements associated with Purchase Agreement No. 1810 shall be deemed to refer to the purchase by Buyer of two hundred sixty-one (261) Model 737-7H4 Aircraft, sixty-two (62) Model 737-7H4 Option Aircraft andd two hundred seventeen (217) Model 737-7H4 Rollover Option Aircraft, to the extent such reference is not specifically addressed herein.

6. The Advance Payments due upon signing assuming execution of this Supplemental Agreement in June 2003 are:

*** for the October 2004 aircraft
*** for the April 2004 aircraft
*** for the June 2004 aircraft
*** for the July 2004 aircraft
*** for the November 2004 aircraft
P.A. No. 1810 SA-29-2
K/SWA


*** for the December 2004 aircraft
*** Total

Buyer will pay the *** directly to Boeing upon execution of this agreement.

P.A. No. 1810 SA-29-3
K/SWA


The Agreement will be deemed to be supplemented to the extent herein provided and as so supplemented will continue in full force and effect.

EXECUTED IN DUPLICATE as of the day and year first above written.

THE BOEING COMPANY                   SOUTHWEST AIRLINES CO.



By:  /s/ Michael S. Anderson        By: /s/ Deborah Ackerman

Its:    Attorney-In-Fact            Its:   VP-General Counsel
P.A. No. 1810                          SA-29-4
K/SWA



                             TABLE OF CONTENTS


                                                              Page      SA
                                                            Number   Number


ARTICLES

1.                    Subject Matter of Sale                 1-1     SA-13

2.                    Delivery, Title and Risk of Loss       2-1     SA-28

3.                    Price of Aircraft                      3-1     SA-28

4.                    Taxes                                  4-1

5.                    Payment                                5-1

6.                    Excusable Delay                        6-1

7.                    Changes to the Detail
                      Specification                          7-1      SA-1

8.                    Federal Aviation Requirements and
                      Certificates and Export License        8-1

9.                    Representatives, Inspection,
                      Flights and Test Data                  9-1

10.                   Assignment, Resale or Lease            10-1

11.                   Termination for Certain Events         11-1

12.                   Product Assurance; Disclaimer and
                      Release; Exclusion of Liabilities;
                      Customer Support; Indemnification
                      and Insurance                          12-1

13.                   Buyer Furnished Equipment and
                      Spare Parts                            13-1

14.                   Contractual Notices and Requests       14-1

15.                   Miscellaneous                          15-1

P.A. No. 1810 i SA-29
K/SWA


TABLE OF CONTENTS

Page SA
Number Number

TABLE

1.                    Aircraft Information Table                     SA-29

2.                    Option Aircraft Information Table              SA-29

EXHIBITS

A                     Aircraft Configuration                         SA-13

B                     Product Assurance Document                      SA-1

C                     Customer Support Document

D                     Price Adjustments Due to
                      Economic Fluctuations - Aircraft               SA-13

E                     Buyer Furnished Equipment
                      Provisions Document

F                     Defined Terms Document


LETTER AGREEMENTS

1810-1                Waiver of Aircraft Demonstration Flight

P.A. No. 1810 ii SA-29
K/SWA


                                      TABLE OF CONTENTS


                                                              Page      SA
                                                            Number   Number

RESTRICTED LETTER AGREEMENTS

6-1162-RLL-932R2      Promotional Support                            SA-13

6-1162-RLL-933R19     Option Aircraft                                SA-28

6-1162-RLL-934R3      Disclosure of Confidential                     SA-14
                      Information

6-1162-RLL-935R1      Performance Guarantees                          SA-1

6-1162-RLL-936R4      Certain Contractual Matters                     SA-4

6-1162-RLL-937        Alternate Advance Payment Schedule

6-1162-RLL-938        ***

6-1162-RLL-939R1      Certification Flight Test Aircraft              SA-1

6-1162-RLL-940R1      Training Matters                                SA-1

6-1162-RLL-941R2      Other Matters                                  SA-13

6-1162-RLL-942        Open Configuration Matters

6-1162-RLL-943R1      Substitution Rights                             SA-6

6-1162-RLL-944        Airframe Maintenance Material Cost
                      Protection Program

6-1162-RLL-945        Comparison of 737-7H4 and 737-3H4
                      Block Fuel Burn

6-1162-RLL-1855R3     Additional Contractual Matters                  SA-4

6-1162-RLL-1856       ***                                             SA-1

6-1162-RLL-1857       Service Ready Validation Program                SA-1
                      Field Test

6-1162-RLL-1858R1     Escalation Matters                              SA-4

P.A. No. 1810 iii SA-29
K/SWA


                                      TABLE OF CONTENTS


                                                              Page      SA
                                                            Number   Number


RESTRICTED LETTER AGREEMENTS

6-1162-RLL-2036       Amortization of Costs for
                      Customer Unique Changes                         SA-1

6-1162-RLL-2037       Reconciliation of the Aircraft                  SA-1
                      Basic Price

6-1162-RLL-2073       Maintenance Training Matters                    SA-1

6-1162-KJJ-054        Business Matters                               SA-13

6-1162-KJJ-055R1      Structural Matters                             SA-25

6-1162-KJJ-056        Noise and Emission Matters                     SA-13

6-1162-KJJ-057        Product Development Matters                    SA-13

6-1162-KJJ-058        Additional Substitution Rights                 SA-13

6-1162-KJJ-150        Flight Control Computer & Mode                 SA-14
                      Control Panel Spares Matter

6-1162-MSA-185R3      Delivery Change Contractual                    SA-21
                      Matters

6-1162-JMG-669        Special Matters                                SA-29

P.A. No. 1810 iv SA-29
K/SWA


Table 1 to Purchase Agreement No. 1810 Aircraft Information Table

                       Base Aircraft     Special     Aircraft Basic     Base
                          Price         Features         Price          Year
                                                                       Dollars
Block A, B, C, D & E       ***            ***           ***         July 1992
Aircraft
Block F & G Aircraft       ***            ***           ***         July 1992
Block H Aircraft           ***            ***           ***         July 1992
Block I Aircraft           ***            ***           ***         July 1992
Block J Aircraft           ***            ***           ***         July 1992
Block K Aircraft           ***            ***           ***         July 1992
Block L Aircraft           ***            ***           ***         July 1992
Block T Aircraft           ***            ***           ***         July 1999

                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Dec-2000         2            E             ***
Jan-2001         1            E             ***
Feb-2001         1            E             ***
Mar-2001         2            E             ***
Jun-2001         3            E             ***
Sep-2001         3            E             ***
Oct-1998         1            F             ***
Nov-1998         2            F             ***
Dec-1998         2            F             ***
Mar-1999         2            G             ***
Jun-1999         2            H             ***
Jul-1999         1            H             ***
Aug-1999         1            H             ***
Sep-1999         2            H             ***
Oct-1999         1            H             ***
Mar-2000         1            H             ***
Apr-2000         2            H             ***
Sep-2000         1            H             ***
Oct-2000         2            H             ***
Mar-2001         2            H             ***


                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Oct-2001         3            H             ***
Nov-2001         2            I             ***
Dec-2001         1            I             ***
Jan-2002         1            I             ***
Mar-2002         4            I             ***
Apr-2002         2            I             ***
Dec-2002         2            I             ***
May-2003         1            I             ***
Jun-2003         2            I             ***
Jul-2003         1            I             ***
Aug-2003         1            I             ***
Sep-2003         3            I             ***
Nov-2002         1            J             ***
Dec-2002         1            J             ***
Nov-2003         2            J             ***
Dec-2003         2            J             ***
Mar-2004         1            I             ***
Mar-2004         1            K             ***
Apr-2004         3            K             ***
May-2004         1            K             ***
Jun-2004         2            K             ***
Jul-2004         2            K             ***
Sep-2004         1            K             ***
Oct 2004         4            K             ***
Oct-1999         1            L             ***
Nov-1999         2            L             ***
Dec-1999         1            L             ***
Jun-2000         3            L             ***
Jul-2000         3            L             ***
Sep-2000         1            L             ***
Oct-2000         1            L             ***
Nov-2000         4            L             ***
Dec-2000         1            L             ***
Jan-2001         1            L             ***
Feb-2001         1            L             ***
Jul-2001         1            L             ***
Sep-2001         1            L             ***
Oct-2001         1            L             ***
Mar-2003         2            L             ***


                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Jul-2003         1            L             ***
Aug-2003         2            L             ***
Nov-2001         1            T             ***
Feb-2002         1            T             ***
Jan-2004         2            T             ***
Feb-2004         1            T             ***
Apr-2004         3            T             ***
May-2004         1            T             ***
Jun-2004         3            T             ***
Jul-2004         1            T             ***
Aug-2004         2            T             ***
Sep-2004         3            T             ***
Oct-2004         1            T             ***
Nov-2004         1            T             ***
Dec-2004         1            T             ***
Jan-2005         5            T             ***
Feb-2005         2            T             ***
Mar-2005         1            T             ***
Apr-2005         2            T             ***
May-2005         1            T             ***
Jun-2005         3            T             ***
Jul-2005         2            T             ***
Aug-2005         1            T             ***
Sep-2005         2            T             ***
Oct-2005         1            T             ***
Nov-2005         2            T             ***
Dec-2005         2            T             ***
Feb-2006         4            T             ***
May-2006         3            T             ***
Jun-2006         4            T             ***
Jul-2006         1            T             ***
Aug-2006         3            T             ***
Sep-2006         3            T             ***
Nov-2006         2            T             ***
Dec-2006         2            T             ***
Jan-2007         2            T             ***
Feb-2007         3            T             ***
Mar-2007         2            T             ***
Apr-2007         2            T             ***


                                        Escalation
                                         Estimate
Delivery     Number of     Aircraft     Adv Payment
                                           Base
Date         Aircraft       Block      Price Per A/P
Jul-2007         2            T             ***
Aug-2007         2            T             ***
Sep-2007         2            T             ***
Oct-2007         2            T             ***
Nov-2007         2            T             ***
Dec-2007         2            T             ***
Jan-2008         1            T             ***
Feb-2008         1            T             ***
Mar-2008         1            T             ***
Apr-2008         1            T             ***
May-2008         1            T             ***
Jun-2008         1            T             ***

                                  Table 2 to Purchase Agreement No. 1810
                         (Letter Agreement No. 6-1162-RLL-933R19)
                            Option Aircraft Information Table

Price Desctiption of Option Aircraft:

                    Base Aircraft     Special    Aircraft Basic     Base Year
                        Price         Features        Price          Dollars
Block U Option           ***            ***            ***          July 1999
Aircraft

Delivery of Rollover Option Aircraft:

Year of    Number of     Option Aircraft Block
Delivery    Option
           Aircraft
2007        Twenty (20)     Q
2008        Twenty (20)     R
2009          Six (6)       S
2009-       One Hundred     V
2012        Seventy-One
              (171)
<F1>
Remaining Option Aircraft:                      62

Aircraft       Number of        Option              Adv Payment Base
Delivery        Option          Aircraft       Price Per
Mo. & Yr.      Aircraft          Block      Option Aircraft   Option Exercise
Feb-2005          1               U             ***         October 1, 2003
Mar-2005          3               U             ***        November 1, 2003
Apr-2005          2               U             ***        December 1, 2003
May-2005          1               U             ***         January 1, 2004
Jun-2005          1               U             ***        February 1, 2004
Aug-2005          1               U             ***           April 1, 2004
Sep-2005          1               U             ***             May 1, 2004
Oct-2005          1               U             ***            June 1, 2004
Nov-2005          1               U             ***            July 1, 2004
Jan-2006          2               U             ***       September 1, 2004
Mar-2006          3               U             ***        November 1, 2004
Apr-2006          2               U             ***        December 1, 2004
May-2006          2               U             ***         January 1, 2005
Jun-2006          1               U             ***        February 1, 2005
Jul-2006          2               U             ***           March 1, 2005


Aircraft       Number of        Option              Adv Payment Base
Delivery        Option          Aircraft       Price Per
Mo. & Yr.      Aircraft          Block      Option Aircraft   Option Exercise
Nov-2006          1               U             ***            July 1, 2005
Dec-2006          1               U             ***          August 1, 2005
Apr-2007          1               U             ***        December 1, 2005
May-2007          1               U             ***         January 1, 2006
Jun-2007          1               U             ***        February 1, 2006
Jul-2007          1               U             ***           March 1, 2006
Aug-2007          1               U             ***           April 1, 2006
Sep-2007          1               U             ***             May 1, 2006
Oct-2007          1               U             ***            June 1, 2006
Nov-2007          1               U             ***            July 1, 2006
Dec-2007          1               U             ***          August 1, 2006
Jan-2008          2               U             ***       September 1, 2006
Feb-2008          3               U             ***         October 1, 2006
Mar-2008          2               U             ***        November 1, 2006
Apr-2008          2               U             ***        December 1, 2006
May-2008          2               U             ***         January 1, 2007
Jun-2008          2               U             ***        February 1, 2007
Jul-2008          2               U             ***           March 1, 2007
Aug-2008          2               U             ***           April 1, 2007
Sep-2008          2               U             ***             May 1, 2007
Oct-2008          2               U             ***            June 1, 2007
Nov-2008          2               U             ***            July 1, 2007
Dec-2008          2               U             ***          August 1, 2007


6-1162-JMG-669

Southwest Airlines Co.
P.O. Box 36611 - Love Field
Dallas, Texas 75235

Subject: Special Matters

This Letter Agreement amends Purchase Agreement No. 1810 dated as of January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737 aircraft:

***

All terms used and not defined herein will have the same meaning as in the Agreement.

1. ***

2. ***

3. ***

4. ***

5. ***

Letter agreement no. 6-1162-DSF-483/737-7H4 dated August 19, 1998 is amended to ***

6. Confidential Treatment.

Buyer understands that certain commercial and financial information contained in this Letter Agreement including any attachments hereto is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity except as provided in Letter Agreement No. 6-1162-RLL-934, as amended.


Southwest Airlines Co.
6-1162-JMG-669

Page 2

Very truly yours,

THE BOEING COMPANY

By /s/ Michael S. Anderson

Its Attorney-In-Fact


ACCEPTED AND AGREED TO this

date:June 30, 2003

SOUTHWEST AIRLINES CO.

By /s/ Deborah Ackerman

Its VP-General Counsel

P.A. No. 1810 SA-29
K/SWA


Exhibit 99.1

CERTIFICATION

I, Gary C. Kelly, Executive Vice President and Chief Financial Officer of Southwest Airlines Co., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southwest Airlines Co.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation ; and

(c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: July 22, 2003                         By:   /s/ Gary C. Kelly
                                                      Gary C. Kelly
                                                      Executive Vice President
                                                      and Chief Financial
                                                      Officer

CERTIFICATION

I, James F. Parker, Chief Executive Officer of Southwest Airlines Co., certify
that:

1. I have reviewed this quarterly report on Form 10-Q of Southwest Airlines Co.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation ; and

(c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: July 22, 2003                         By:   /s/ James F. Parker
                                                      James F. Parker
                                                      Chief Executive Officer


Exhibit 99.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Southwest Airlines Co. (the "Company") for the period ended June 30, 2003 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Gary C. Kelly, Executive Vice President and Chief Financial Officer of the Company, certify pursuant to 18 U.SS.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1). The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2). The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:  July 22, 2003                        By  /s/ Gary C. Kelly
                                                    Gary C. Kelly
                                                    Executive Vice President -
                                                    Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Southwest Airlines Co. and will be retained by Southwest Airlines Co. and furnished to the Securities and Exchhange Commission or its staff upon request.


CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Southwest Airlines Co. (the "Company") for the period ended June 30, 2003 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, James F. Parker, Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1). The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2). The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:  July 22, 2003                        By  /s/ James F. Parker
                                                    James F. Parker
                                                    Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to Southwest Airlines Co. and will be retained by Southwest Airlines Co. and furnished to the Securities and Exchange Commission or its staff upon request.