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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QWAmjOrPGE2eFpyvfwsDxT2KfD/0cJ/0TknQoE5p3zOxS6Gz/UaeifYDNVwr/JSm
 Q6MXLkWwZFL9czcQCHlyAQ==

<SEC-DOCUMENT>0001209191-03-034101.txt : 20031209
<SEC-HEADER>0001209191-03-034101.hdr.sgml : 20031209
<ACCEPTANCE-DATETIME>20031209135851
ACCESSION NUMBER:		0001209191-03-034101
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031208
FILED AS OF DATE:		20031209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NASH JEFFREY M
		CENTRAL INDEX KEY:			0001186918

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21767
		FILM NUMBER:		031044479

	MAIL ADDRESS:	
		STREET 1:		3790 VIA DE LA VALLE
		STREET 2:		SUITE 311
		CITY:			DEL MAR
		STATE:			CA
		ZIP:			92014

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:			CA
		FISCAL YEAR END:			0402

	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>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-12-08</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000797721</issuerCik><issuerName>VIASAT INC</issuerName>        <issuerTradingSymbol>vsat</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001186918</rptOwnerCik><rptOwnerName>NASH JEFFREY M</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>6155 EL CAMINO REAL</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>CARLSBAD</rptOwnerCity><rptOwnerState>CA</rptOwnerState><rptOwnerZipCode>92009</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><valu
e>$.0001 par value common stock</value></securityTitle><transactionDate><value>2003-12-08</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1" /></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>1000.0000</value></transactionShares><transactionPricePerShare><value>20.0200</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>367913.0000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">Transaction pursuant to Rule 10b5
- -1 Trading Plan adopted on November 17, 2003.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>Jeffrey M. Nash</signatureName><signatureDate>2003-12-09</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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