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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-08-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001606366</issuerCik>
        <issuerName>El Pollo Loco Holdings, Inc.</issuerName>
        <issuerTradingSymbol>LOCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001376508</rptOwnerCik>
            <rptOwnerName>Trimaran Pollo Partners, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRIMARAN FUND MANAGEMENT, L.L.C.</rptOwnerStreet1>
            <rptOwnerStreet2>1325 AVENUE OF THE AMERICAS, 28TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001322395</rptOwnerCik>
            <rptOwnerName>Trimaran Capital, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRIMARAN CAPITAL PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1325 AVENUE OF THE AMERICAS, 28TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001322747</rptOwnerCik>
            <rptOwnerName>Bloom Jay R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRIMARAN CAPITAL PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1325 AVENUE OF THE AMERICAS, 28TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001322745</rptOwnerCik>
            <rptOwnerName>Kehler Dean C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRIMARAN CAPITAL PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1325 AVENUE OF THE AMERICAS, 28TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-08-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5534303</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11212241</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Trimaran Pollo Partners, L.L.C. distributed these shares to certain of its members on a ratable basis, for no consideration.</footnote>
        <footnote id="F2">Trimaran Capital, L.L.C., is the managing member of Trimaran Pollo Partners, L.L.C.</footnote>
        <footnote id="F3">Mr. Bloom and Mr. Kehler are the managing members of Trimaran Capital, L.L.C. Additionally, Mr. Kehler is a director of the issuer. Each of Trimaran Capital, L.L.C., Mr. Bloom, and Mr. Kehler may be deemed a beneficial owner of shares of the issuer's common stock held by Trimaran Pollo Partners, L.L.C., but disclaims beneficial ownership thereof, except to the extent of its or his respective pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jay R. Bloom, Managing Director of Trimaran Capital, L.L.C., as Managing Member of Trimaran Pollo Partners, L.L.C.</signatureName>
        <signatureDate>2022-09-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jay R. Bloom, Managing Director, on behalf of Trimaran Capital, L.L.C.</signatureName>
        <signatureDate>2022-09-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jay R. Bloom</signatureName>
        <signatureDate>2022-09-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Dean C. Kehler</signatureName>
        <signatureDate>2022-09-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
