<SUBMISSION>
<ACCESSION-NUMBER>0000899243-18-006728
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20180306
<FILING-DATE>20180307
<DATE-OF-FILING-DATE-CHANGE>20180307
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Sebree Jolyn Jenssen
<CIK>0001686583
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-37540
<FILM-NUMBER>18674749
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>1 EAST ARMOUR BOULEVARD
<CITY>KANSAS CITY
<STATE>MO
<ZIP>64111
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>Hostess Brands, Inc.
<CIK>0001644406
<ASSIGNED-SIC>2050
<IRS-NUMBER>000000000
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>1 EAST ARMOUR BOULEVARD
<CITY>KANSAS CITY
<STATE>MO
<ZIP>64111
<PHONE>816-701-4600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1 EAST ARMOUR BOULEVARD
<CITY>KANSAS CITY
<STATE>MO
<ZIP>64111
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>Gores Holdings, Inc.
<DATE-CHANGED>20150608
</FORMER-COMPANY>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-03-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001644406</issuerCik>
        <issuerName>Hostess Brands, Inc.</issuerName>
        <issuerTradingSymbol>TWNK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001686583</rptOwnerCik>
            <rptOwnerName>Sebree Jolyn Jenssen</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HOSTESS BRANDS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1 EAST ARMOUR BOULEVARD</rptOwnerStreet2>
            <rptOwnerCity>KANSAS CITY</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>64111</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>See Remarks</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock, par value $0.0001 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2018-03-06</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3551</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7115</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <transactionDate>
                <value>2018-03-07</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4052</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4052</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21334</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On March 6, 2018, following the determination by the Compensation Committee of Hostess Brands, Inc. (the &quot;Company&quot;) that the 2017 positive earnings per share condition to the vesting of one-third of the shares of Class A common stock underlying an award of restricted stock units granted to the reporting person on March 23, 2017 was satisfied, the Company withheld 3,551 shares of Class A common stock to satisfy withholding taxes due in connection with such vesting. Such shares had a market value of $14.35 per share, the closing price of the Class A common stock on the immediately preceding trading date.</footnote>
        <footnote id="F2">On March 23, 2017, the Company granted an award of performance share units to the reporting person, the vesting of which is subject to the satisfaction of annual Adjusted EBITDA targets and continued employment during the three-year vesting period. On March 7, 2018, the Compensation Committee determined that, based upon the Company's Adjusted EBITDA for the year ended December 31, 2017, the performance condition with respect to the listed number of such performance share units was satisfied. The vesting of such units remains subject to the time-based vesting criteria.</footnote>
        <footnote id="F3">Consists of the remaining previously disclosed restricted stock units that remain subject to time-based vesting criteria.</footnote>
    </footnotes>

    <remarks>Senior Vice President, General Counsel &amp; Secretary</remarks>

    <ownerSignature>
        <signatureName>/s/ Jolyn J. Sebree</signatureName>
        <signatureDate>2018-03-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
