Update: this popular deal may have sold out. See more deals >

Both airlines are offering discount fares on over 100 domestic routes, good for travel through the fall. Round-trip flights start at $98. These are the rules:

– You can fly August 26 through December 18.

– No Friday or Sunday flights.

– Sale fares are one-way only; round-trip purchase not required.

– No travel September 2 and November 26 – December 3.

– Book tickets by 11:59pm PT June 13.

See the full details on the AirTran and Southwest websites.

Book Cheap Flights for Fall

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