Southwest Airlines (NYSE:LUV) is the largest domestic carrier by total passengers, carrying over 110 million passengers over 1 million flights. ^[1]

A key component of the Southwest business strategy is its low cost structure, which is designed to allow it to profitably charge low fares.^[2] The company has lower unit costs, on average, than most major carriers. LUV's low cost structure is currently facilitated its reliance upon a single aircraft type, its operationally efficient point-to-point route structure, and its highly productive Employees. The use of a single aircraft type, the Boeing 737, enables Southwest to simplify scheduling, maintenance, flight operations, and training activities. The company has been profitable since 1972, an unprecedented record in the industry..^[2]

(Read more at Wikinvest )