Southwest Airlines Co.

About Southwest Airlines Co.

Southwest Airlines will fly any plane (as long as it's a Boeing) and let passengers sit anywhere they like (as long as they get there first). Sticking with what has worked, Southwest has expanded its low-cost, no-frills, no-reserved-seats approach to air travel throughout the US to serve nearly 90 destinations across North America. Now the largest carrier of US domestic passengers, Southwest still stands as an inspiration for scrappy low-fare upstarts the world over. The carrier has enjoyed 43 straight profitable years, amid the airline industry's ups and downs. Southwest's fleet numbers about 700 aircraft, including 700 Boeing 737s.