Southwest Airlines is based in Phoenix. They have hubs in Denver - St Louis - Dallas (DAL) - Chicago (MDW) - Houston (HOU) Baltimore (BWI) - Los Angeles.
By 2014 they fly 640 Boeing 737
In 2004 it's a dometic airline in the USA. They used 405 Boeing 737 jets (as of June 30, 2004): of which 194 are Boeing B-737-300 and 168 Boeing 737-700. 18 are older Boeing B-737-200 and 25 of are Boeing B-737-500, all together 405 Boeing 737 airplanes, all with leather seats.
by www.2747.com / world / airline / Southwest