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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-07-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001723580</issuerCik>
        <issuerName>BurgerFi International, Inc.</issuerName>
        <issuerTradingSymbol>BFI, BFIIW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001334770</rptOwnerCik>
            <rptOwnerName>RABINOVITCH MICHAEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BURGERFI INTERNATIONAL, INC.,</rptOwnerStreet1>
            <rptOwnerStreet2>105 U.S. HIGHWAY 1</rptOwnerStreet2>
            <rptOwnerCity>NORTH PALM BEACH</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33408</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP and CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-07-13</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>130000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>130000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>130000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-07-13</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>230000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each restricted stock unit represents a contingent right to receive one share of BurgerFi International, Inc. common stock.</footnote>
        <footnote id="F2">July 13, 2021, the Reporting Person was granted 130,000 restricted stock units under the issuer's 2020 Omnibus Equity Incentive Plan, which shall vest and be settled in shares of common stock in four annual installments of 25,000 restricted stock units, 30,000 restricted stock units, 35,000 restricted stock units and 40,000 restricted stock units beginning February 26, 2022, subject to the Reporting Person's achievement of certain key performance criteria and earlier vesting due to a change of control or certain termination or resignation events.</footnote>
        <footnote id="F3">July 13, 2021, the Reporting Person was granted 100,000 restricted stock units under the issuer's 2020 Omnibus Equity Incentive Plan, which shall vest and be settled in shares of common stock as follows: (i) 20,000 restricted stock units shall vest, if during calendar year 2021 the last reported closing price of the issuer's common stock for any twenty trading days within any consecutive thirty trading day period is greater than or equal to $19.00 per share; provided, however, that if the vesting condition is not achieved during calendar year 2021, such 20,000 restricted stock units shall roll over to calendar year 2022 and shall vest, if during calendar year 2022 the last reported closing price of the issuer's common stock for any twenty (20) trading days within any consecutive thirty (30) trading day period is greater than or equal to $19.00 per share; (ii) 20,000 restricted stock units shall vest, if during calendar year 2022 the last reported closing price of</footnote>
        <footnote id="F4">(Continued from footnote 3) the issuer's common stock for any twenty trading days within any consecutive thirty trading day period equals or exceeds $19.00 per share; (iii) 20,000 restricted stock units shall vest, if during calendar year 2023 the last reported closing price of the issuer's common stock for any twenty trading days within any consecutive thirty trading day period is greater than or equal to $22.00 per share; and (iv) 40,000 restricted stock units shall vest, if during calendar year 2024 the last reported closing price of the issuer's common stock for any twenty trading days within any consecutive thirty trading day period is greater than or equal to $25.00 per share, subject to earlier vesting due to a change of control or certain termination or resignation events; provided, that in no event shall the number of unearned restricted stock units that can vest in 2022 in connection with such termination events exceed 20,000 restricted stock units.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Michael Rabinovitch</signatureName>
        <signatureDate>2021-07-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
