Update: this popular deal may have sold out. See more deals >
The two airlines are running another joint flight sale this week, with cheap fares on over 100 domestic routes. Prices start at $126 round-trip, and the following rules apply:
– You can fly now through June 25.
– No Friday or Sunday flights.
– Sale fares are one-way; round-trip purchase not required.
– 14-day advance purchase required.
– Book flights by 11:59pm PT May 23.