-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001209191-07-055380.txt : 20071001
<SEC-HEADER>0001209191-07-055380.hdr.sgml : 20071001
<ACCEPTANCE-DATETIME>20071001085920
ACCESSION NUMBER:		0001209191-07-055380
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071001
FILED AS OF DATE:		20071001
DATE AS OF CHANGE:		20071001

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LAIDLAW INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000737874
		STANDARD INDUSTRIAL CLASSIFICATION:	LOCAL & SUBURBAN TRANSIT & INTERURBAN HWY PASSENGER TRAINS [4100]
		IRS NUMBER:				980390488
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		55 SHUMAN BLVD.
		STREET 2:		SUITE 400
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
		BUSINESS PHONE:		6308483000

	MAIL ADDRESS:	
		STREET 1:		55 SHUMAN BLVD.
		STREET 2:		SUITE 400
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LAIDLAW INC
		DATE OF NAME CHANGE:	19941215

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LAIDLAW TRANSPORTATION LTD
		DATE OF NAME CHANGE:	19900118

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SANDERS JEFFREY W
		CENTRAL INDEX KEY:			0001271310

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10657
		FILM NUMBER:		071144271

	BUSINESS ADDRESS:	
		STREET 1:		55 SHUMAN BLVD
		CITY:			NAPERVILLE
		STATE:			IL
		ZIP:			60563
		BUSINESS PHONE:		6308483000
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-10-01</periodOfReport>

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        <issuerName>LAIDLAW INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>LI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001271310</rptOwnerCik>
            <rptOwnerName>SANDERS JEFFREY W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>55 SHUMAN BLVD.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>NAPERVILLE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60563</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP and CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
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                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>23528</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>35.25</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                </directOrIndirectOwnership>
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    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>13.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-01</value>
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            <transactionTimeliness>
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                <transactionPricePerShare>
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                    <footnoteId id="F3"/>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
                <value>2013-11-24</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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        <derivativeTransaction>
            <securityTitle>
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            <transactionDate>
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            </transactionDate>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
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            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
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                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-12-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
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                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.55</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.70</value>
                    <footnoteId id="F5"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F5"/>
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            <expirationDate>
                <value>2015-11-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>26.38</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>8.87</value>
                    <footnoteId id="F6"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F6"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-07-11</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>28.87</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
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                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.38</value>
                    <footnoteId id="F7"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F7"/>
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            <expirationDate>
                <value>2016-10-25</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
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                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Disposed of pursuant to the Agreement and Plan of Merger, dated as of February 8, 2007, among Laidlaw International, Inc., FirstGroup Acquisition Corporation (formerly known as Fern Acquisition Vehicle Corporation) and FirstGroup plc in exchange for the right to receive $35.25 per share.</footnote>
        <footnote id="F2">Pursuant to the Agreement and Plan of Merger, dated as of February 8, 2007, among Laidlaw International, Inc., FirstGroup Acquisition Corporation (formerly known as Fern Acquisition Vehicle Corporation) and FirstGroup plc, at the effective time of the merger, each restricted stock unit became fully vested and converted into the right to receive $35.25 per share.</footnote>
        <footnote id="F3">This option, which provided for vesting in three (3) equal annual installments beginning November 24, 2004, was canceled in the merger in exchange for a cash payment equal to the difference between the exercise price of the option and the merger consideration of $35.25 per share, multiplied by the number of shares subject to the option.</footnote>
        <footnote id="F4">This option, which provided for vesting in three (3) equal annual installments beginning December 8, 2005, was canceled in the merger in exchange for a cash payment equal to the difference between the exercise price of the option and the merger consideration of $35.25 per share, multiplied by the number of shares subject to the option.</footnote>
        <footnote id="F5">This option, which provided for vesting in three (3) equal annual installments beginning November 8, 2006, was canceled in the merger in exchange for a cash payment equal to the difference between the exercise price of the option and the merger consideration of $35.25 per share, multiplied by the number of shares subject to the option.</footnote>
        <footnote id="F6">This option, which provided for vesting in three (3) equal annual installments beginning July 11, 2007, was canceled in the merger in exchange for a cash payment equal to the difference between the exercise price of the option and the merger consideration of $35.25 per share, multiplied by the number of shares subject to the option.</footnote>
        <footnote id="F7">This option, which provided for vesting in three (3) equal annual installments beginning October 25, 2007, was canceled in the merger in exchange for a cash payment equal to the difference between the exercise price of the option and the merger consideration of $35.25 per share, multiplied by the number of shares subject to the option.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Beth Byster Corvino as Attorney-in-Fact for Jeffrey W. Sanders</signatureName>
        <signatureDate>2007-10-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----