Exhibit 99.1

Viasat Announces Fourth Quarter and Fiscal Year 2019 Results

CARLSBAD, Calif., May 23, 2019 – Viasat Inc. (NASDAQ: VSAT), a global communications company, today announced financial results for the fiscal fourth quarter ended March 31, 2019.

“Fiscal year 2019 was a pivotal year for Viasat,” said Mark Dankberg, Viasat chairman and CEO. “We entered the year with an ambitious growth agenda, and a commitment to capitalize on prior period investments in ViaSat-2, in-flight connectivity (IFC) mobility and defense products. We executed well, transforming sales backlogs into record revenue and compelling Adjusted EBITDA growth. IFC registered impressive market share gains and global recognition for quality and reliability. Government Systems delivered exceptional growth, record new contract awards and expanding market opportunities fueled by investments in innovative Non-Developmental Item (NDI) products. Satellite Services achieved record revenues with greater vertical and geographic market diversification and solid momentum. We’ve also made good progress on our growth initiatives in new vertical and geographic markets – aided by key agreements with global strategic and regional satellite partners. We are energized by the opportunities before us in fiscal year 2020 that are enabled by our unique, highly-integrated technology and business approach.”

Satellite Services

The Company’s Satellite Services segment achieved another quarter of record revenue performance at $190.0 million in the fourth quarter of fiscal year 2019, with gains of 31% year-over-year and 7% sequentially. In fixed broadband services, the Company’s premium service offerings continued to drive year-over-year revenue growth across both residential and enterprise markets. Mobile broadband service revenues also achieved a new high, as the Company’s commercial aviation IFC business more than doubled in-service aircraft year-over-year, and by 17% sequentially. On the international front, the fourth quarter of fiscal year 2019 included elevated investments in market expansion opportunities for fixed and mobile broadband services across Latin America, Europe and Asia Pacific. Revenues obtained from businesses other than U.S. fixed broadband services rose to approximately 24% of the segment’s revenue for the fourth quarter of fiscal year 2019. Segment Adjusted EBITDA more than doubled compared to the fourth quarter of fiscal year 2018, and rose 17% on a sequential basis, excluding any impacts associated with the Company’s ViaSat-2 insurance claims recorded in the second half of fiscal year 2019. Highlights for the quarter include:

For fiscal year 2019, Satellite Services segment revenues reached a new record as the total ViaSat-2 fixed and mobile service base began to scale. The segment operating loss for fiscal year 2019 reflected the higher depreciation, fixed operating expenses and sales and marketing costs associated with the ViaSat-2 service launch, as well as expenses related to the ramp in IFC aircraft installations. Adjusted EBITDA performance for the segment for fiscal year 2019 improved slightly compared to fiscal year 2018.

Commercial Networks

For the fourth quarter of fiscal year 2019, Viasat’s Commercial Networks segment revenues increased 21% from the prior year, as the Company continued its rapid IFC terminal delivery activities based on strong customer demand. Segment performance also reflected revenue growth across the Company’s antenna systems infrastructure businesses and other satellite networking areas. Segment operating losses and Adjusted EBITDA for the quarter remained relatively flat compared to the prior year period. Research and Development (R&D) expense for the quarter declined by $7.0 million year-over-year, and held flat on a sequential quarter basis, as the Company progressed through final module test and validation for the Company’s first two ViaSat-3 class satellite payloads, and neared final migration to the capital portion of the project. Highlights for the quarter include:

For fiscal year 2019 the Commercial Networks segment saw narrowed segment operating losses and improved Adjusted EBITDA compared to the prior fiscal year.

Government Systems

Viasat’s Government Systems segment achieved another quarter of record performance, setting new highs for revenues, operating profit and Adjusted EBITDA. Fourth quarter fiscal year 2019 also marked the close of the segment’s first ever $1 billion contract win year, with fiscal year 2019 segment new contract awards totaling over $1.2 billion, up 50% compared to the prior fiscal year, representing a book-to-bill ratio of 1:3:1. For the quarter, compared to the prior year period, revenues increased by 26%, to $275.3 million; operating profit increased by 48%, to $60.2 million; and Adjusted EBITDA grew by 32%, to $77.3 million. Operating results reflected strong performance across multiple business units, including additional year-over-year operating profit and Adjusted EBITDA contributions from sales of government satellite communication products, government mobile broadband solutions and network security platforms. Highlights for the quarter include:

For fiscal year 2019, Viasat’s Government Systems segment’s record performance continued with revenue growth of 24% to $955.6 million, an operating profit increase of 31% to $180.0 million and an Adjusted EBITDA increase of 22% to $252.0 million, compared to the prior fiscal year.

Conference Call

Viasat will host a conference call to discuss the fourth quarter and fiscal year 2019 results. Details follow:

About Viasat

Viasat is a global communications company that believes everyone and everything in the world can be connected. For more than 30 years, Viasat has helped shape how consumers, businesses, governments and militaries around the world communicate. Today, the Company is developing the ultimate global communications network to power high-quality, secure, affordable, fast connections to impact people’s lives anywhere they are—on the ground, in the air or at sea. To learn more about Viasat, visit: www.viasat.com, go to Viasat’s Corporate Blog, or follow the Company on social media at: Facebook, Instagram, LinkedIn, Twitter or YouTube.

Forward-Looking Statements

This press release contains forward-looking statements that are subject to the safe harbors created under the Securities Act of 1933 and the Securities Exchange Act of 1934. Forward-looking statements include, among others, statements that refer to opportunities, growth and outlook for fiscal year 2020 and beyond; satellite construction and launch activities; the expected completion, performance, capacity, service, coverage, service speeds, availability and other features of our satellites, and the timing, cost, economics and other benefits associated therewith; domestic and international expansion plans, including with respect to the expansion of our footprint and service offerings in Mexico and collaboration with Facebook; the number of IFC systems expected to be installed under existing contracts with commercial airlines; and the impacts of new contracts entered into with, and the roll-out, ramp-up and uptake of products and services by, and services to be offered by, our airline partners and other customers. Readers are cautioned that actual results could differ materially and adversely from those expressed in any forward-looking statements. Factors that could cause actual results to differ include: our ability to realize the anticipated benefits of the ViaSat-2 and ViaSat-3 class satellites; unexpected expenses related to our satellite projects; our ability to successfully implement our business plan for our broadband satellite services on our anticipated timeline or at all; risks associated with the construction, launch and operation of our satellites, including the effect of any anomaly, operational failure or degradation in satellite performance; our ability to realize the anticipated benefits of our acquisitions or strategic partnering arrangements; our ability to successfully develop, introduce and sell new technologies, products and services; the number of purchase orders that are submitted and accepted for the installation of IFC systems with respect to aircraft under contract; audits by the U.S. government; changes in the global business environment and economic conditions; delays in approving U.S. government budgets and cuts in government defense expenditures; our reliance on U.S. government contracts, and on a small number of contracts which account for a significant percentage of our revenues; reduced demand for products and services as a result of continued constraints on capital spending by customers; changes in relationships with, or the financial condition of, key customers or suppliers; our reliance on a limited number of third parties to manufacture and supply our products; increased competition; introduction of new technologies and other factors affecting the communications and defense industries generally; the effect of adverse regulatory changes (including changes affecting spectrum availability or permitted uses) on our ability to sell products and services; orbital arc congestion affecting availability of Ka-band spectrum; the effect of changes in the way Ka-band spectrum is used by others; our level of indebtedness and ability to comply with applicable debt covenants; our involvement in litigation, including intellectual property claims and litigation to protect our proprietary technology; and our dependence on a limited number of key employees. In addition, please refer to the risk factors contained in our SEC filings available at www.sec.gov, including our most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q. Readers are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date on which they are made. We undertake no obligation to update or revise any forward-looking statements for any reason.

Use of Non-GAAP Financial Information

To supplement Viasat’s consolidated financial statements presented in accordance with generally accepted accounting principles (GAAP), ViaSat uses non-GAAP net income (loss) attributable to Viasat Inc. and Adjusted EBITDA, measures Viasat believes are appropriate to enhance an overall understanding of Viasat’s past financial performance and prospects for the future. We believe the non-GAAP results provide useful information to both management and investors by excluding specific expenses that we believe are not indicative of our core operating results. In addition, since we have historically reported non-GAAP results to the investment community, we believe the inclusion of non-GAAP numbers provides consistency in our financial reporting and facilitates comparisons to the Company’s historical operating results. Further, these non-GAAP results are among the primary indicators that management uses as a basis for evaluating the operating performance of our segments, allocating resources to such segments, planning and forecasting in future periods. The presentation of this additional information is not meant to be considered in isolation or as a substitute for measures of financial performance prepared in accordance with GAAP. A reconciliation of specific adjustments to GAAP results is provided in the tables below.

Copyright ^© 2019 Viasat, Inc. All rights reserved. Viasat, the Viasat logo and the Viasat signal are registered trademarks of Viasat, Inc. All other product or company names mentioned are used for identification purposes only and may be trademarks of their respective owners.

Condensed Consolidated Statements of Operations

(Unaudited)

(In thousands, except per share data)

AN ITEMIZED RECONCILIATION BETWEEN NET INCOME (LOSS) ATTRIBUTABLE TO VIASAT INC.

ON A GAAP BASIS AND NON-GAAP BASIS IS AS FOLLOWS:

AN ITEMIZED RECONCILIATION BETWEEN NET INCOME (LOSS) ATTRIBUTABLE TO VIASAT INC.

AND ADJUSTED EBITDA IS AS FOLLOWS:

AN ITEMIZED RECONCILIATION BETWEEN SEGMENT OPERATING PROFIT (LOSS) BEFORE

CORPORATE AND AMORTIZATION OF ACQUIRED INTANGIBLE ASSETS AND ADJUSTED EBITDA IS AS FOLLOWS:

(In thousands)

Condensed Consolidated Balance Sheets

(Unaudited)

(In thousands)

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Viasat, Inc. Contacts:

Chris Phillips, Corporate Communications and Public Relations, +1 760-476-2322, chris.phillips@viasat.com

June Harrison, Investor Relations, +1 760-476-2633, IR@viasat.com