<SUBMISSION>
<ACCESSION-NUMBER>0001137638-07-000021
<TYPE>5
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20061231
<FILING-DATE>20070214
<DATE-OF-FILING-DATE-CHANGE>20070214
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>BATTLE A GEORGE
<CIK>0001203980
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>5
<ACT>34
<FILE-NUMBER>000-51447
<FILM-NUMBER>07617900
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>5858 HORTON STREET
<STREET2>SUITE 350
<CITY>EMERYVILLE
<STATE>CA
<ZIP>94608
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>Expedia, Inc.
<CIK>0001324424
<ASSIGNED-SIC>4700
<IRS-NUMBER>202705720
<FISCAL-YEAR-END>1205
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>3150 139TH AVENUE SE
<CITY>BELLEVUE
<STATE>WA
<ZIP>98005
<PHONE>(425)679-7200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>3150 139TH AVENUE SE
<CITY>BELLEVUE
<STATE>WA
<ZIP>98005
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2006-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>1</form4TransactionsReported>

    <issuer>
        <issuerCik>0001324424</issuerCik>
        <issuerName>Expedia, Inc.</issuerName>
        <issuerTradingSymbol>EXPE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001203980</rptOwnerCik>
            <rptOwnerName>BATTLE A GEORGE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5858 HORTON STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 350</rptOwnerStreet2>
            <rptOwnerCity>EMERYVILLE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94608</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-12-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2827</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-08-09</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>L</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2827</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2827</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-08-09</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionTimeliness>
                <value>L</value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5067</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5067</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Custodian for Child</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Not previously reported.</footnote>
        <footnote id="F2">Represents shares of Expedia Common Stock received in connection with the spinoff by IAC/InterActive Corp (IAC) of Expedia, Inc. (Expedia), which was completed on August 9, 2005 (the Spin-Off).  The Spin-Off, which was immediately preceded by a one-for-two reverse stock split (the Reverse Stock Split) was effected by way of a reclassification, pursuant to which each share of IAC Common Stock, par value $0.01 (Old IAC Common Stock), was reclassified into one share of IAC Common Stock, par value $0.001 (New IAC Common Stock), and 1/100 of a share of IAC Series 1 Mandatory Exchangeable Preferred Stock, which was automatically exchanged into one share of Expedia Common Stock.</footnote>
        <footnote id="F3">By wife as CAUTMA custodian for Catherine McNelley; Mr. Battle disclaims beneficial ownership of the shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Amy E. Weaver, Attorney-in-Fact</signatureName>
        <signatureDate>2007-02-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
