-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 O8KqJ2pc43NKICQG+lTIj+OKlufluBHqo/YksmCmVdtGbJUgC3m91SfqjX/WdldR
 UG+ELHu+rqlxCSUY2xOI5Q==

<SEC-DOCUMENT>0000353394-03-000066.txt : 20031006
<SEC-HEADER>0000353394-03-000066.hdr.sgml : 20031006
<ACCEPTANCE-DATETIME>20031006132452
ACCESSION NUMBER:		0000353394-03-000066
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031003
FILED AS OF DATE:		20031006

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DEMISCH WOLFGANG H
		CENTRAL INDEX KEY:			0001082869

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12771
		FILM NUMBER:		03929437

	BUSINESS ADDRESS:	
		STREET 1:		C/O SAIC
		STREET 2:		10260 CAMPUS POINT DR M/SF3
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

	MAIL ADDRESS:	
		STREET 1:		C/O SAIC
		STREET 2:		10260 CAMPUS POINT DR M/SF3
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SCIENCE APPLICATIONS INTERNATIONAL CORP
		CENTRAL INDEX KEY:			0000353394
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ENGINEERING, ACCOUNTING, RESEARCH, MANAGEMENT [8700]
		IRS NUMBER:				953630868
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0131

	BUSINESS ADDRESS:	
		STREET 1:		10260 CAMPUS POINT DR
		STREET 2:		LEGAL DEPT
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		8588266000

	MAIL ADDRESS:	
		STREET 1:		LEGAL DEPT
		STREET 2:		10260 CAMPUS POINT DR
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>dem346.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
	<periodOfReport>2003-10-03</periodOfReport>
	<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000353394</issuerCik>
        <issuerName>SCIENCE APPLICATIONS INTERNATIONAL CORP</issuerName>
        <issuerTradingSymbol>N/A</issuerTradingSymbol>
	</issuer>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001082869</rptOwnerCik>
            <rptOwnerName>DEMISCH WOLFGANG H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>435 ROUND HILL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06831</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>1</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>0</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<derivativeTable>
		<derivativeTransaction>
			<securityTitle>
				<value>Share Units   (Phantom Stock)</value>
				<footnoteId id="F1"/>
			</securityTitle>
			<conversionOrExercisePrice>
				<footnoteId id="F2"/>
			</conversionOrExercisePrice>
			<transactionDate>
				<value>2003-10-03</value>
			</transactionDate>
			<deemedExecutionDate>
			</deemedExecutionDate>
			<transactionCoding>
				<transactionFormType>4</transactionFormType>
				<transactionCode>A</transactionCode>
				<equitySwapInvolved>0</equitySwapInvolved>
			</transactionCoding>
			<transactionAmounts>
				<transactionShares>
					<value>354</value>
				</transactionShares>
				<transactionPricePerShare>
					<value>30.5000</value>
				</transactionPricePerShare>
				<transactionAcquiredDisposedCode>
					<value>A</value>
				</transactionAcquiredDisposedCode>
			</transactionAmounts>
			<exerciseDate>
				<footnoteId id="F3"/>
			</exerciseDate>
			<expirationDate>
				<footnoteId id="F3"/>
			</expirationDate>
			<underlyingSecurity>
				<underlyingSecurityTitle>
					<value>Class A Common Stock</value>
				</underlyingSecurityTitle>
				<underlyingSecurityShares>
					<value>354</value>
				</underlyingSecurityShares>
			</underlyingSecurity>
			<postTransactionAmounts>
				<sharesOwnedFollowingTransaction>
					<value>16900</value>
				</sharesOwnedFollowingTransaction>
			</postTransactionAmounts>
			<ownershipNature>
				<directOrIndirectOwnership>
					<value>D</value>
				</directOrIndirectOwnership>
				<natureOfOwnership>
					<value/>
				</natureOfOwnership>
			</ownershipNature>
		</derivativeTransaction>
	</derivativeTable>
	<footnotes>
		<footnote id="F1">Pursuant to the SAIC Key Executive Stock Deferral Plan.</footnote>
		<footnote id="F2">The share units convert into SAIC Class A Common Stock on a one-for-one basis.</footnote>
		<footnote id="F3">The units are settled in SAIC Class A Common Stock and are payable upon the reporting person's termination.</footnote>
	</footnotes>
	<remarks>
	</remarks>
	<ownerSignature>
		<signatureName>By: N. Walker, Attorney-in-fact</signatureName>
		<signatureDate>2003-10-06</signatureDate>
	</ownerSignature>
</ownershipDocument>

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