[Expired] Southwest: Up To 40% Off Base Fares With Promo Code 40SALE

Deal has ended, view more Southwest deals by clicking here. 

The Offer

Direct link to offer

• Southwest is offering up to 40% off base fares with promo code 40SALE
  • Book by  10/23
  • Valid on flights 12/3/25-3/4/26

Our Verdict

Stack it with a Chase offer as well.  Can reprice if you have existing bookings as well. I suspect up to is doing a lot of heavy lifting here, but worth a look.