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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-02-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001640428</issuerCik>
        <issuerName>EverQuote, Inc.</issuerName>
        <issuerTradingSymbol>EVER</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001744443</rptOwnerCik>
            <rptOwnerName>Suzuki Eugene</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O EVERQUOTE, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>210 BROADWAY</rptOwnerStreet2>
            <rptOwnerCity>CAMBRIDGE</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02139</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Information Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-02-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>9940</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22744</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Consists of shares of Class A Common Stock issuable under 9,940 restricted stock units (&quot;RSUs&quot;). Each RSU represents the right to receive one share of Class A Common Stock upon vesting. The vesting start date for the RSUs is February 15, 2020.  The RSUs are scheduled to vest as follows:  (1) equal quarterly installments from the vesting start date until the first anniversary of the vesting start date, at which point 15% of the RSUs will have vested; (2) equal quarterly installments from the first anniversary of the vesting start date until the second anniversary of the vesting start date, at which point an additional 15% of the RSUs will have vested;</footnote>
        <footnote id="F2">(Continued from footnote 1) (3) equal quarterly installments from the second anniversary of the vesting start date until the third anniversary of the vesting start date, at which point an additional 30% of the RSUs will have vested; and (4) equal quarterly installments from the third anniversary of the vesting start date until the fourth anniversary of the vesting start date, at which point an additional 40% of the RSUs will have vested and the RSUs will have vested in full.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ David Mason, as attorney-in-fact for Eugene Suzuki</signatureName>
        <signatureDate>2020-02-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
