Points or $
You can use it on any flight to any domestic destination (no blackout dates) when booked by October 31, 2016, for travel through January 31, 2017.
Southwest Airlines® Sale Offer Terms:
50 percent off promo code savings valid on one-way or roundtrip Wanna Get Away®, Anytime®, and Business Select® Fares booked during the valid travel dates listed below and is applied before taxes and fees. Savings is reflected in the price when entering the single-use promo code in the Promo Code box on southwest.com®. Points bookings do not include September 11th Security Fee of $5.60 one-way. Purchase through October 31, 2016. Discount is valid on new reservations only and must be made prior to 11:59 p.m. for the respective time zone of the originating city on October 31, 2016 for travel July 22, 2016 through January 31, 2017. Valid for Southwest Airlines® domestic and San Juan, Puerto Rico scheduled flights only. Discount will apply only on valid travel dates. If one direction of the trip is outside the valid travel dates and one is within the valid travel dates, only the portion of travel falling within the travel dates listed above will be discounted. Changes made to the itinerary after purchase will eliminate qualifications for this promotion. The discount is only valid with the provided Promotion Code and is not combinable with other Promotion Codes. Wanna Get Away Fares are nonrefundable, but may be applied toward future travel on Southwest Airlines®, so long as you cancel your reservations at least ten minutes prior to the scheduled departure of your flight. Failure to cancel prior to departure will result in forfeiture of remaining funds on the reservation. Discount is not valid on Group Travel or Southwest Vacations® packages. Reservations can include up to eight people. These Fare Saver codes cannot be replaced. No cash value. Void if sold or bartered.