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

    <schemaVersion>X0407</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-03-28</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

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

    <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>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>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>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-03-28</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>11116638</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>95602</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-03-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5182564</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5182564</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-03-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F5"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4800152</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>382412</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Trimaran Pollo Partners, L.L.C. distributed these shares to all of its members on a ratable basis, for no consideration.</footnote>
        <footnote id="F2">Represents shares held directly by Trimaran Pollo Partners, L.L.C. Trimaran Capital, L.L.C. is the managing member of Trimaran Pollo Partners, L.L.C.  Mr. Bloom and Mr. Kehler are the managing members of Trimaran Capital, L.L.C.  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 respective pecuniary interest therein.</footnote>
        <footnote id="F3">Represents shares received by Trimaran Fund II, L.L.C., Trimaran Parallel Fund II, L.P., and Trimaran Capital, L.L.C in a ratable distribution by Trimaran Pollo Partners, L.L.C. for no consideration.</footnote>
        <footnote id="F4">Represents shares held directly by Trimaran Capital, L.L.C., Trimaran Fund II, L.L.C. and Trimaran Parallel Fund II, L.P. Trimaran Investments II, L.L.C. is the special member of Trimaran Fund II, L.L.C. and the special limited partner of Trimaran Parallel Fund II, L.P.  Mr. Bloom and Mr. Kehler are the managing members of Trimaran Capital, L.L.C. and Trimaran Investments II, L.L.C.  Each of Mr. Bloom and Mr. Kehler may be deemed a beneficial owner of shares of the issuer's common stock held by Trimaran Capital, L.L.C., Trimaran Fund II, L.L.C. and Trimaran Parallel Fund II, L.P., but disclaims beneficial ownership thereof, except to the extent of his respective pecuniary interest therein.</footnote>
        <footnote id="F5">Trimaran Fund II, L.L.C., Trimaran Parallel Fund II, L.P., and Trimaran Capital L.L.C distributed these shares to all of their members and limited partners, as applicable, on a ratable basis, for no consideration. Includes 11,433 shares distributed to Trimaran Investments II, L.L.C., 69,620 shares distributed to Mr. Kehler and 69,620 shares distributed to Mr. Bloom.</footnote>
    </footnotes>

    <remarks>Exhibit List:

Ex.24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Dean C. Kehler</signatureName>
        <signatureDate>2023-03-28</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Dean C. Kehler, Managing Director, on behalf of Trimaran Capital, L.L.C.</signatureName>
        <signatureDate>2023-03-28</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Dean C. Kehler, as attorney-in-fact for Jay R. Bloom</signatureName>
        <signatureDate>2023-03-28</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Dean C. Kehler, Managing Director of Trimaran Capital, L.L.C., as Managing Member of Trimaran Pollo Partners, L.L.C.</signatureName>
        <signatureDate>2023-03-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
