Update: this popular deal may have sold out. See more deals >
If you book before midnight Thursday, both AirTran and Southwest are offering hundreds of discounted flights. Fares start at $138 round-trip, subject to the following rules:
– You can fly between January 7 and May 15 next year.
– Cheap flights are available all days except Sunday.
– Sale prices are one-way only; a round-trip purchase is not required.
– No travel allowed on February 15 – February 18, March 8 – March 15, March 22 – April 1 and April 5
– Book tickets no later than 11:59pm PT on December 13