UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 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 No. 1-7259 | --- | --- | |-----------------------------------------------------------------------------------------------|---- ...

Southwest Airlines Co. (NYSE:LUV) Q4 2018 Earnings Conference Call January 24, 2018 12:30 PM ET Company Participants Ryan Martinez - Managing Director of Investor Relations Gary Kelly - Chairman and Chief Executive Officer Tom Nealon - President Mike Van de Ven - Chief Operating Officer Tammy Romo - Executive Vice President and Chief Financial Officer Linda Rutherford - Senior Vice President and Chief Communications Officer Conference Call Participants Joseph DeNardi - Stifel Brandon Oglenski - Barclays Dav ...