-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IqHk54GQ+mGcnUHDaqEkXkyTI7EB7y4uFeM2GDbTqT240ITvtkvqPOMULYove+wV
 fAM+0lYXMzgou4FDM3wLzQ==

<SEC-DOCUMENT>0001127602-10-017171.txt : 20100614
<SEC-HEADER>0001127602-10-017171.hdr.sgml : 20100614
<ACCEPTANCE-DATETIME>20100614182009
ACCESSION NUMBER:		0001127602-10-017171
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100610
FILED AS OF DATE:		20100614
DATE AS OF CHANGE:		20100614

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALMEIDA RICHARD J
		CENTRAL INDEX KEY:			0001202876

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06033
		FILM NUMBER:		10895907

	MAIL ADDRESS:	
		STREET 1:		CORN PRODUCTS INTERNATIONAL INC
		STREET 2:		5 WESTBROOK CORPORATE CENTER
		CITY:			WESTCHESTER
		STATE:			IL
		ZIP:			60154

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UAL CORP /DE/
		CENTRAL INDEX KEY:			0000100517
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		IRS NUMBER:				362675207
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		JOHN LAKOSIL - WHQLD
		STREET 2:		77 W. WACKER
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
		BUSINESS PHONE:		312-997-8000

	MAIL ADDRESS:	
		STREET 1:		JOHN LAKOSIL - WHQLD
		STREET 2:		77 W. WACKER
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEGIS CORP
		DATE OF NAME CHANGE:	19880613

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UAL INC
		DATE OF NAME CHANGE:	19870517
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-06-10</periodOfReport>

    <issuer>
        <issuerCik>0000100517</issuerCik>
        <issuerName>UAL CORP /DE/</issuerName>
        <issuerTradingSymbol>UAUA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001202876</rptOwnerCik>
            <rptOwnerName>ALMEIDA RICHARD J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 66100-HDQLD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60666</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-06-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1139.21</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1139.21</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7028.49</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each share unit represents the economic equivalent of one share of common stock.  At time of distribution, Reporting Person will receive a cash payment equal to the number of share units multiplied by the average of the high and low sale prices of a share of the Company's common stock on the date of distribution.</footnote>
        <footnote id="F2">Additional share units accrue when and as dividends are paid on Company's common stock.  The number of share units accrued will be equal to the dollar amount of dividends that would be payable if the share units were actual shares of common stock, divided by the average of the high and low sale prices of a share of the Company's common stock on the date dividends are paid.</footnote>
        <footnote id="F3">Delivery of a cash payment in settlement of the share units will be made in January of the year following the calendar year in which Reporting Person ceases to be a director of the Company.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Lydia J. Mathas for Richard J. Almeida</signatureName>
        <signatureDate>2010-06-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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