Las Vegas, San Diego, Boston, and Washington, D.C. are just a few of the major cities Virgin America has placed in its latest sale. Competitive fares from AirTran and US Airways are available, depending on travel dates.
Midwest's latest sale, similar to that of AirTran, American, and Frontier, features travel through June. Continental, Delta, United, and US Airways, also offer competing fares.
Southwest has just put more than 1,300 routes on sale for travel into the summer months. American, JetBlue, United, US Airways, and others offer competing fares.
