<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2015-07-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001538849</issuerCik>
        <issuerName>CrossAmerica Partners LP</issuerName>
        <issuerTradingSymbol>CAPL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001562039</rptOwnerCik>
            <rptOwnerName>CST Brands, Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE VALERO WAY, BLDG D, SUITE 200</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78249</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Units</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5139252</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The reported Common Units are owned as follows: (a) 4,801,154 Common Units owned by CST Services LLC (&quot;CST Services&quot;), a direct wholly owned subsidiary of CST USA Inc. (&quot;CST USA&quot;), which is a direct wholly owned subsidiary of CST Brands, Inc. (&quot;CST&quot;), (b) 322,145 Common Units owned by Big Diamond, LLC, an indirect wholly owned subsidiary of CST Services, (c) 15,873 Common Units owned by Skipper Beverage Company, LLC, an indirect wholly owned subsidiary of CST Services, (d) 40 Common Units owned by CST Shamrock Stations, Inc., a direct wholly owned subsidiary of CST Services, and (e) 40 Common Units owned by CST Arizona Stations, Inc., a direct wholly owned subsidiary of CST Services.  CST and CST USA are indirect beneficial owners of the reported Common Units.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gerard J. Sonnier, Senior Vice President, General Counsel and Corporate Secretary</signatureName>
        <signatureDate>2015-07-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
