Southwest Airlines or Southwest Airlines Co. is low-cost carrier with its headquarters in Dallas, Texas in U.S. Established in 1971, this company serves all the top cities in U.S., and it is partnership with other carriers as well. Its partners include Volaris, ATA, Icelandair, and Westjet Airlines. The fleet of this airline comprise of aircrafts like Boeing 737-300, Boeing 737-700, Boeing 737-500, Boeing 737-800 and the Boeing 737 MAX 8. This airline is the largest operator of Boeing aircraft. The airline's main Livery was a blend of orange, red, and gold, and now the company also owns special liveries with the same colors.