-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 OuvLPx5Qp4V0dH9wLJHyDA==

<SEC-DOCUMENT>0001209191-05-050673.txt : 20051004
<SEC-HEADER>0001209191-05-050673.hdr.sgml : 20051004
<ACCEPTANCE-DATETIME>20051004184819
ACCESSION NUMBER:		0001209191-05-050673
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051003
FILED AS OF DATE:		20051004
DATE AS OF CHANGE:		20051004

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RYDER SYSTEM INC
		CENTRAL INDEX KEY:			0000085961
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-AUTO RENTAL & LEASING (NO DRIVERS) [7510]
		IRS NUMBER:				590739250
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11690 N.W. 105TH STREET
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33178
		BUSINESS PHONE:		3055003726

	MAIL ADDRESS:	
		STREET 1:		11690 N.W. 105TH STREET
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33178

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GRIFFIN BOBBY J
		CENTRAL INDEX KEY:			0001183545

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04364
		FILM NUMBER:		051123173

	BUSINESS ADDRESS:	
		STREET 1:		C/O RYDER SYSTEMS INC
		STREET 2:		3600 N W 82ND AVENUE
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33166
		BUSINESS PHONE:		305-500-4015

	MAIL ADDRESS:	
		STREET 1:		11690 N.W. 105TH STREET
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33178
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-10-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000085961</issuerCik>
        <issuerName>RYDER SYSTEM INC</issuerName>
        <issuerTradingSymbol>R</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001183545</rptOwnerCik>
            <rptOwnerName>GRIFFIN BOBBY J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11690 N.W. 105 STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33178</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President-US Int'l Operations</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-10-03</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1058</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>33.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>16689</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1865</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Ryder Deferrred Compensation Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of common stock withheld upon the vesting of restricted stock units for the payment of the related tax liability.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Flora R. Perez,
by power of attorney</signatureName>
        <signatureDate>2005-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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