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    <issuer>
        <issuerCik>0001046311</issuerCik>
        <issuerName>CHOICE HOTELS INTERNATIONAL INC /DE</issuerName>
        <issuerTradingSymbol>CHH</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001036806</rptOwnerCik>
            <rptOwnerName>BAINUM BRUCE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8171 MAPLE LAWN BLVD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 375</rptOwnerStreet2>
            <rptOwnerCity>FULTON</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20759</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isTenPercentOwner>1</isTenPercentOwner>
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                    <value>See Footnote</value>
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                    <value>See Footnote</value>
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                    <value>See Footnote</value>
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                    <value>74592</value>
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                    <value>D</value>
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    <footnotes>
        <footnote id="F1">Shares owned by the Bruce Bainum Declaration of Trust (&quot;Bruce Trust&quot;) for which Dr. Bainum is the sole trustee and current beneficiary.  Shares were distributed from a Grantor Retained Annuity Trust for the benefit of Dr. Bainum.</footnote>
        <footnote id="F2">The proportionate interest of the Bruce Trust in shares (978,482) owned by Mid Pines Associates, L.P. (&quot;Mid Pines&quot;)  an entity in which the Bruce Trust has shared voting authority.</footnote>
        <footnote id="F3">The proportionate interest of the Bruce Trust in shares (6,821,574) owned by Realty Investment Co. Inc., (&quot;Realty&quot;) an investment company in which Dr. Bainum is a noncontrolling shareholder and shares voting authority. Realty owns Choice stock as well as other assets.</footnote>
        <footnote id="F4">The proportionate interest in shares owned by Realty (6,821,574) of individual trusts for the benefit of Dr. Bainum's adult children for which Dr. Bainum is the trustee. Beneficial ownership is disclaimed. Shares were distributed to Dr. Bainum's adult son.</footnote>
        <footnote id="F5">The proportionate interest in shares owned by Mid Pines (978,482) of individual trusts for the benefit of Dr. Bainum's adult children for which Dr. Bainum is the trustee. Beneficial ownership is disclaimed. Shares were distributed to Dr. Bainum's adult son.</footnote>
        <footnote id="F6">The proportionate interest of Dr. Bainum and the Bruce Trust,  in shares owned by Posadas Holdings, LLC, (&quot;Posadas&quot;) a family investment entity in which Dr. Bainum shares voting authority.</footnote>
        <footnote id="F7">Shares owned by a trust for the benefit of Dr. Bainum's descendants for which Dr. Bainum is the trustee. Beneficial ownership is disclaimed.</footnote>
        <footnote id="F8">Shares owned by a Grantor Retained Annuity Trust for the benefit of Dr. Bainum and his descendants.  Shares were distributed to the Bruce Trust.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Christine A. Shreve, POA</signatureName>
        <signatureDate>2022-02-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
