Just got an email that Southwest is having a $49 summer fare sale! The $49 one-way fares are for flights on Tue and Wed. Don’t wait because the best fares and flight times go quick.
Caveats: 14-day advance purchase required. Purchase by May 14, 2009, 11:59 pm Pacific Time. Travel through October 28, 2009. Fares are nonrefundable but may be applied toward future travel on Southwest Airlines.