Southwest Airlines is the world's largest low-cost ... except for a few years in the 1980s when it leased Boeing 727 jets from Braniff. Even before Southwest acquired its first 737-800, the ...

Southwest Airlines passengers on a Mexico-bound flight were forced to evacuate the aircraft after an engine malfunction caused a fire. The plane, a Boeing 737-700, lifted off from Houston William P.

Southwest Airlines stock fell sharply early Thursday as the carrier reported a wider-than-expected loss and revealed more about the impact of Boeing’s delivery delays.