<SEC-DOCUMENT>0001209191-19-023446.txt : 20190403
<SEC-HEADER>0001209191-19-023446.hdr.sgml : 20190403
<ACCEPTANCE-DATETIME>20190403182026
ACCESSION NUMBER:		0001209191-19-023446
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190401
FILED AS OF DATE:		20190403
DATE AS OF CHANGE:		20190403

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Peterman Ken Allen
		CENTRAL INDEX KEY:			0001575173

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21767
		FILM NUMBER:		19730520

	MAIL ADDRESS:	
		STREET 1:		6155 EL CAMINO REAL
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92009

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VIASAT INC
		CENTRAL INDEX KEY:			0000797721
		STANDARD INDUSTRIAL CLASSIFICATION:	RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT [3663]
		IRS NUMBER:				330174996
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		6155 EL CAMINO REAL
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92009
		BUSINESS PHONE:		760-476-2200

	MAIL ADDRESS:	
		STREET 1:		6155 EL CAMINO REAL
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92009
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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        <issuerName>VIASAT INC</issuerName>
        <issuerTradingSymbol>VSAT</issuerTradingSymbol>
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            <rptOwnerZipCode>92009</rptOwnerZipCode>
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            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President Government Systems</officerTitle>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>$.0001 par value common stock</value>
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                <footnoteId id="F1"/>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10750</value>
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                <transactionPricePerShare>
                    <value>69.74</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>37516</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>$.0001 par value common stock</value>
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            <transactionDate>
                <value>2019-04-02</value>
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            </transactionTimeliness>
            <transactionAmounts>
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                    <value>10750</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>79.01</value>
                    <footnoteId id="F5"/>
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                    <value>D</value>
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                    <value>343</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401(k)</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>stock option</value>
            </securityTitle>
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                <value>65.86</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-04-01</value>
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            <deemedExecutionDate></deemedExecutionDate>
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                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                <value>2020-11-17</value>
            </expirationDate>
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                    <value>common stock</value>
                </underlyingSecurityTitle>
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                <value></value>
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                    <value>16875</value>
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                <transactionPricePerShare>
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                <value>2021-11-17</value>
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                <value></value>
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                <transactionShares>
                    <value>10750</value>
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    <footnotes>
        <footnote id="F1">Transaction pursuant to Rule 10b5-1 Trading Plan adopted on March 16, 2018.</footnote>
        <footnote id="F2">Includes 138 shares purchased under the Viasat Employee Stock Purchase Plan (&quot;ESPP&quot;) on 12/31/2018.</footnote>
        <footnote id="F3">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.53 to $78.24, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.</footnote>
        <footnote id="F4">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.55 to $78.24, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.T</footnote>
        <footnote id="F5">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $79.00 to $79.09, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote</footnote>
        <footnote id="F6">The option vested in four (4) equal annual installments of 5,000 shares beginning on 11/17/2015 and ending on 11/17/2018.</footnote>
        <footnote id="F7">The option vests in four (4) equal annual installments of 5,625 shares beginning on 11/17/2016 and ending on 11/17/2019.</footnote>
        <footnote id="F8">The option vests in four (4) equal annual installments of 5,375 shares beginning on 11/17/2017 and ending on 11/17/2020.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Kathleen K. Hollenbeck, under power of attorney</signatureName>
        <signatureDate>2019-04-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
