Update: this popular deal may have sold out. See more deals >
Both airlines have cut prices across their networks, with over 100 routes on sale from $110 round-trip. These are the rules:
– You can fly now through June 25, on any day of the week.
– Sale fares are one-way only; round-trip purchase not required.
– No travel May 24, 31; June 2, 7, 9, 14, 16, 21 & 23.
– 7-day advance purchase required.
– Book flights by 11:59pm PT May 16.
See the full details on the AirTran and Southwest websites.