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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-10-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001821682</issuerCik>
        <issuerName>Sarissa Capital Acquisition Corp.</issuerName>
        <issuerTradingSymbol>SRSA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001821671</rptOwnerCik>
            <rptOwnerName>Sarissa Capital Acquisition Sponsor LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>660 STEAMBOAT ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001577524</rptOwnerCik>
            <rptOwnerName>Sarissa Capital Management LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>660 STEAMBOAT ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001361754</rptOwnerCik>
            <rptOwnerName>DENNER ALEXANDER J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SARISSA CAPITAL MANAGEMENT LP</rptOwnerStreet1>
            <rptOwnerStreet2>660 STEAMBOAT RD</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001577566</rptOwnerCik>
            <rptOwnerName>Sarissa Capital Management GP LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>660 STEAMBOAT ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B ordinary shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-10-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>31250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A ordinary shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">As described in the issuer's registration statement on Form S-1 (File No. 333-249171) under the heading &quot;Description of Securities - Founder Shares,&quot; Class B ordinary shares of the issuer, par value $0.0001 per share (&quot;Class B Shares&quot;), will automatically convert into Class A ordinary shares of the issuer, par value $0.0001 per share (&quot;Class A Shares&quot;), at the time of the issuer's initial business combination, on a one-for-one basis, subject to certain adjustment, and have no expiration date.</footnote>
        <footnote id="F2">Forfeiture to the issuer for no consideration because the underwriter for the issuer's initial public offering did not fully exercise the over-allotment option.</footnote>
        <footnote id="F3">Sarissa Capital Management LP (the &quot;Managing Member&quot;) is the managing member of Sarissa Capital Acquisition Sponsor LLC, the reporting person (the &quot;Sponsor&quot;), and as such, has voting and investment discretion with respect to the ordinary shares held of record by the Sponsor and may be deemed to have shared beneficial ownership of the ordinary shares held directly by the Sponsor. The general partner of the Managing Member is Sarissa Capital Management GP LLC, and the managing member of Sarissa Capital Management GP LLC is Alexander Denner. Alexander Denner also serves as the Chairman and Chief Executive Officer of the issuer.  Both Sarissa Capital Management GP LLC and Alexander Denner may be deemed to have shared beneficial ownership of the ordinary shares held directly by the Sponsor.</footnote>
        <footnote id="F4">(continued from footnote 3) Each of the issuer's officers and directors may hold a direct or indirect interest in the Sponsor. Each such person disclaims any beneficial ownership of the reported shares other than to the extent of any pecuniary interest they may have therein, directly or indirectly.</footnote>
    </footnotes>

    <remarks>See Exhibit 99.1 - Power of Attorney for Sarissa Capital Acquisition Sponsor LLC
See Exhibit 99.2 - Power of Attorney for Sarissa Capital Management LP
See Exhibit 99.3 - Power of Attorney for Alexander Denner
See Exhibit 99.4 - Power of Attorney for Sarissa Capital Management GP LLC
See Exhibit 99.5 - Joint Filer Information, which is incorporated by reference and describes in further detail the relationships of the reporting persons to the issuer.</remarks>

    <ownerSignature>
        <signatureName>Sarissa Capital Acquisition Sponsor LLC, By: /s/ Willkie Farr &amp; Gallagher LLP, Attorney-in-Fact</signatureName>
        <signatureDate>2020-11-03</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarissa Capital Management LP, By: /s/ Willkie Farr &amp; Gallagher LLP, Attorney-in-Fact</signatureName>
        <signatureDate>2020-11-03</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Alexander Denner, By: /s/ Willkie Farr &amp; Gallagher LLP, Attorney-in-Fact</signatureName>
        <signatureDate>2020-11-03</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarissa Capital Management GP LLC, By: /s/ Willkie Farr &amp; Gallagher LLP, Attorney-in-Fact</signatureName>
        <signatureDate>2020-11-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
