Zacks.com | Southwest (LUV) Offers Numerous Options for Holiday Travel Zacks.com The carrier has also begun operating between Chicago (Midway) and Cabo San Lucas/Los Cabos, Mexico during the weekends. Additionally, the carrier has resumed its daily seasonal services between Austin and Cancun; Denver and Puerto Vallarta; ... Southwest Airlines Begins Operating New Flights SEC FORM 4 - SEC.gov |