Exhibit 5.1

				12670 High Bluff Drive
				San Diego, California 92130
				Tel: +1.858.523.5400 Fax: +1.858.523.5450
				www.lw.com
				FIRM / AFFILIATE OFFICES
				Beijing		Moscow
				Boston		Munich
				Brussels		New York
May 29, 2019				Century City		Orange County
				Chicago		Paris
				Dubai		Riyadh
				Düsseldorf		San Diego
				Frankfurt		San Francisco
				Hamburg		Seoul
				Hong Kong		Shanghai
				Houston		Silicon Valley
				London		Singapore
				Los Angeles		Tokyo
				Madrid		Washington, D.C.
				Milan

Viasat, Inc.

6155 El Camino Real

Carlsbad, California 92009

Ladies and Gentlemen:

We have acted as special counsel to Viasat, Inc., a Delaware corporation (the “ Company ”), in connection with the proposed issuance by the Company of 1,000,000 shares (the “ Shares ”) of common stock of the Company, par value $0.0001 per share, that may be contributed by the Company in satisfaction of the Company’s matching contributions to the 401(k) Profit Sharing Plan of the Company (the “ Plan ”). The Shares are included in the Registration Statement on Form S-8 under the Securities Act of 1933, as amended (the “ Act ”), filed with the Securities and Exchange Commission (the “ Commission ”) on May 29, 2019 (the “ Registration Statement ”). This opinion is being furnished in connection with the requirements of Item 601(b)(5) of Regulation S-K under the Act, and no opinion is expressed herein as to any matter pertaining to the contents of the Registration Statement, other than as expressly stated herein with respect to the issuance of the Shares.

As such counsel, we have examined such matters of fact and questions of law as we have considered appropriate for purposes of this letter. With your consent, we have relied upon certificates and other assurances of officers of the Company and others as to factual matters without having independently verified such factual matters. We are opining herein as to the General Corporation Law of the State of Delaware, and we express no opinion with respect to any other laws.

In our examination, we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals and the conformity to authentic original documents of all documents submitted to us as copies.

May 29, 2019

Page 2

Subject to the foregoing and the other matters set forth herein, it is our opinion that, as of the date hereof, when the Shares shall have been duly registered on the books of the transfer agent and registrar therefor in the name or on behalf of the recipients, or certificates representing the Shares (in the form of the specimen certificate incorporated by reference as an exhibit to the Company’s most recent Annual Report on Form 10-K) have been manually signed by an authorized officer of the transfer agent and registrar therefor, and when the Shares have been issued by the Company in satisfaction of the Company’s matching contributions to the Plan against payment therefor (not less than par value) in the circumstances contemplated by the Plan, the issuance of the Shares will have been duly authorized by all necessary corporate action of the Company, and the Shares will be validly issued, fully paid and nonassessable. In rendering the foregoing opinion, we have assumed that the Company will comply with all applicable notice requirements regarding uncertificated shares provided in the General Corporation Law of the State of Delaware.

This opinion is for your benefit in connection with the Registration Statement and may be relied upon by you and by persons entitled to rely upon it pursuant to the applicable provisions of the Act. We consent to your filing this opinion as an exhibit to the Registration Statement. In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Commission thereunder.

Exhibit 5.2

		DEPARTMENT OF THE TREASURY INTERNAL REVENUE SERVICE WASHINGTON, D.C. 20224

Dear Applicant:

In our opinion, the form of the plan identified above is acceptable under section 401 of the Internal Revenue Code for use by employers for the benefit of their employees. This opinion relates only to the acceptability of the form of the plan under the Internal Revenue Code. It is not an opinion of the effect of other Federal or local statutes.

You must furnish a copy of this letter, a copy of the approved plan, and copies of any subsequent amendments to each employer who adopts this plan. Effective on or after 10/31/2011, interim amendments adopted by the sponsor on behalf of employers must provide the date of adoption by the sponsor.

This letter considers the changes in qualification requirements contained in the 2010 Cumulative List of Notice 2010-90, 2010-52 I.R.B. 909.

Our opinion on the acceptability of the form of the plan is not a ruling or determination as to whether an employer’s plan qualifies under Code section 401(a). However, an employer that adopts this plan may rely on this letter with respect to the qualification of its plan under Code section 401(a), as provided for in Rev. Proc. 2011-49, 2011-44 I.R.B. 608, and outlined below. The terms of the plan must be followed in operation.

Except as provided below, our opinion does not apply with respect to the requirements of Code sections 401(a)(4), 401(1), 410(b), and 414(s). Our opinion does not apply for purposes of Code section 401(a)(10)(B) and section 401(a)(16) if an employer ever maintained another qualified plan for one or more employees who are covered by this plan. For this purpose, the employer will not be considered to have maintained another plan merely because the employer has maintained another defined contribution plan(s), provided such other plan(s) has been terminated prior to the effective date of this plan and no annual additions have been credited to the account of any participant under such other plan(s) as of any date within the limitation year of this plan. Also, for this purpose, an employer is considered as maintaining another plan, to the extent that the employer maintains a welfare benefit fund defined in Code section 419(e), which provides postretirement medical benefits allocated to separate accounts for key employees as defined in Code section 419A(d)(3), or an individual medical account as defined in Code section 415(l)(2), which is part of a pension or annuity plan maintained by the employer, or a simplified employee pension plan.

Our opinion does not apply for purposes of the requirement of section 1.401(a)-1 (b)(2) of the regulations applicable to a money purchase plan or target benefit plan where the normal retirement age under the employer’s plan is lower than age 62.

Letter 4334

GREAT-WEST TRUST COMPANY, LLC

FFN: 313A8770711-005

Page: 2

This is not a ruling or determination with respect to any language in the plan that reflects Section 3 of the Defense of Marriage Act, Pub. L. 104-199, 110 Stat. 2419 (DOMA) or U.S. v. Windsor, 133 S. Ct. 2675 (2013), which invalidated that section.

Our opinion applies with respect to the requirements of Code section 410(b) if 100 percent of all nonexcludable employees benefit under the plan. Employers that elect a safe harbor allocation formula and a safe harbor compensation definition can also rely on an opinion letter with respect to the nondiscriminatory amounts requirement under section 401(a)(4). If this plan includes a CODA or otherwise provides for contributions subject to sections 401(k) and/or 401(m), the opinion letter can be relied on with respect to the form of the nondiscrimination tests of 401(k)(3) and 401(m)(2) if the employer uses a safe harbor compensation definition. In the case of plans described in section 401(k)(12) or (13) and/or 401(m)(11) or (12), employers may also rely on the opinion letter with respect to whether the form of the plan satisfies the requirements of those sections unless the plan provides for the safe harbor contribution to be made under another plan.

The employer may request a determination (1) as to whether the plan, considered with all related qualified plans and, if appropriate, welfare benefit funds, individual medical benefit accounts, and simplified employee pension plans, satisfies the requirements of Code section 401(a)(16) as to limitations on benefits and contributions in Code section 415 and the requirements of Code section 401(a)(10)(B) as to the top-heavy plan requirements in Code section 416; (2) with respect to whether a money purchase or target benefit plan’s normal retirement age which is earlier than age 62 satisfies the requirements of section 401(a)-1(b)(2) of the Income Tax Regulations; (3) that the plan is a multiple employer plan; (4) whether there has been a partial termination; and (5) to comply with published procedures of the Service (e.g. minimum funding waiver request). The employer may request a determination letter in these circumstances by filing an application with Employee Plans Determinations on Form 5300, without restating for the Cumulative List in effect when the application is filed.

If you, the master or prototype sponsor, have any questions concerning the IRS processing of this case, please call the above telephone number. This number is only for use of the sponsor. Individual participants and/or adopting employers with questions concerning the plan should contact the master or prototype sponsor. The plan’s adoption agreement must include the sponsor’s address and telephone number for inquiries by adopting employers.

If you write to the IRS regarding this plan, please provide your telephone number and the most convenient time for us to call in case we need more information. Whether you call or write, please refer to the Letter Serial Number and File Folder Number shown in the heading of this letter.

You should keep this letter as a permanent record. Please notify us if you modify or discontinue sponsorship of this plan.

Sincerely Yours,

Andrew E. Zuckerman

Director, Employee Plans Rulings and Agreements

Letter 4334