Southwest's 'Week of WOW' Sale Cuts Fares Up to 40% Through Sept. 17
Dallas – September 17, 2026 -- Southwest Airlines kicked off its Week of WOW sale, offering up to 40% off base fares for flights booked by Sept. 17 for travel between Oct. 5, 2026, and March 3, 2027.
Discounted routes include Austin-San Diego and Nashville-Chicago
Nonstop routes on sale include Austin to San Diego, Nashville to Chicago Midway, Denver to San Diego, Seattle to Nashville, and Austin to San Jose, all available now on Southwest.com. The fare discount requires a 21-day advance purchase and applies before government taxes and fees, with restrictions, exclusions, and blackout dates in effect.