-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MunfV9X+cUeZ0k8JLg5RGWiopCQ1xk+HDCGLRLRHNAEaP0VzW5LnCgJxr5kQByec
 vlzhVcGP3PU/x7AqOPEJZQ==

<SEC-DOCUMENT>0000932440-05-000374.txt : 20050729
<SEC-HEADER>0000932440-05-000374.hdr.sgml : 20050729
<ACCEPTANCE-DATETIME>20050729170325
ACCESSION NUMBER:		0000932440-05-000374
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050727
FILED AS OF DATE:		20050729
DATE AS OF CHANGE:		20050729

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DIETRICH JOHN W
		CENTRAL INDEX KEY:			0001226022

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16545
		FILM NUMBER:		05985656

	BUSINESS ADDRESS:	
		STREET 1:		C/O ATLAS AIR INC
		STREET 2:		2000 WESTCHESTER AVENUE
		CITY:			PURCHASE
		STATE:			NY
		ZIP:			10577
		BUSINESS PHONE:		9147018000

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ATLAS AIR WORLDWIDE HOLDINGS INC
		CENTRAL INDEX KEY:			0001135185
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, NONSCHEDULED [4522]
		IRS NUMBER:				134146982
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2000 WESTCHESTER AVENUE
		CITY:			PURCHASE
		STATE:			NY
		ZIP:			10577-2543
		BUSINESS PHONE:		9147018000

	MAIL ADDRESS:	
		STREET 1:		2000 WESTCHESTER AVENUE
		CITY:			PURCHASE
		STATE:			NY
		ZIP:			10577-2543
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>atlas_form-4dietrichex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-07-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001135185</issuerCik>
        <issuerName>ATLAS AIR WORLDWIDE HOLDINGS INC</issuerName>
        <issuerTradingSymbol>AAWW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001226022</rptOwnerCik>
            <rptOwnerName>DIETRICH JOHN W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ATLAS AIR INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2000 WESTCHESTER AVE</rptOwnerStreet2>
            <rptOwnerCity>PURCHASE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10577</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr. VP, Gen. Cnsl, Chf. HR Off</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.1 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2005-07-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5894</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>34.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>33706</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <remarks>The shares reported were withheld by the Company in connection with the reporting person's payment of taxes on the earlier
grant of such shares. The withholding was exempt pursuant to Rule 16b-3.</remarks>

    <ownerSignature>
        <signatureName>/s/ Michael W. Borkowski, as Attorney-in-Fact</signatureName>
        <signatureDate>2005-07-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----