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Table of Contents ☑ ☐ SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 Form 10 - Q QUARTERLY REPORT UNDER SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31 , 2021 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-14719 SKYWEST , INC . Incorporated under the laws of Utah 87-0292166 ( I.R.S. Employer ID No. ) 444 South River Road St. George , Utah 84790 ( 435 ) 634-3000 ( Address of principal executive offices and telephone number ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of Each Class Trading Symbol ( s ) Common Stock , No Par Value SKYW Name of Each Exchange on which Registered The Nasdaq Global Select Market Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes > No □ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No □ Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non- accelerated filer , a smaller reporting company , or an emerging growth company . See definitions of " large accelerated filer , ” “ accelerated filer , ” “ smaller reporting company , ” and “ emerging growth company ” in Rule 12b - 2 of the Exchange Act : Large accelerated filer ☑ Non - accelerated filer ☐ Emerging growth company ☐ Accelerated filer ☐ Smaller reporting company □ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . ☐ Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes □ No ☑ Indicate the number of shares outstanding of each of the registrant's classes of common stock , as of the latest practicable date . Class Common stock , no par value Outstanding at April 30 , 2021 50,345,560