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

Southwest has posted another domestic fare sale this week. Advertised prices start at $138 round-trip. These are the rules:

– Fly now through through May 21.

– No Friday or Sunday flights.

– 14-day advance purchase required.

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

– The offer is valid until 11:59pm local time on February 27, or while availability lasts.

Comments are closed.