<SEC-DOCUMENT>0001179110-13-001856.txt : 20130205
<SEC-HEADER>0001179110-13-001856.hdr.sgml : 20130205
<ACCEPTANCE-DATETIME>20130205104855
ACCESSION NUMBER:		0001179110-13-001856
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20130204
FILED AS OF DATE:		20130205
DATE AS OF CHANGE:		20130205

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RICH BRADFORD R
		CENTRAL INDEX KEY:			0001244796

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14719
		FILM NUMBER:		13572641

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SKYWEST INC
		CENTRAL INDEX KEY:			0000793733
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
		IRS NUMBER:				870292166
		STATE OF INCORPORATION:			UT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		444 S RIVER RD
		CITY:			ST GEORGE
		STATE:			UT
		ZIP:			84790
		BUSINESS PHONE:		8016343000

	MAIL ADDRESS:	
		STREET 1:		444 SOUTH RIVER ROAD
		CITY:			ST GEORGE
		STATE:			UT
		ZIP:			84790
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-02-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000793733</issuerCik>
        <issuerName>SKYWEST INC</issuerName>
        <issuerTradingSymbol>SKYW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001244796</rptOwnerCik>
            <rptOwnerName>RICH BRADFORD R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>444 RIVER ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST GEORGE</rptOwnerCity>
            <rptOwnerState>UT</rptOwnerState>
            <rptOwnerZipCode>84790</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President SkyWest, Inc.</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2013-02-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4300</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.5205</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>62444</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices that range from $12.33 to $12.82, inclusive. The reporting person undertakes to provide to SkyWest, Inc., any security holder of SkyWest, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.</footnote>
        <footnote id="F2">Includes 3,588 shares acquired under the SkyWest, Inc. Stock Purchase Plan.  Also includes 11,605 restricted share units that vest on Feb. 2, 2014; and 14,472 restricted share units that vest on Feb. 15, 2015.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Bradford R Rich</signatureName>
        <signatureDate>2013-02-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
