Sierra Pacific Airlines

Southwest Airlines is a major domestic airline that provides primarily short-haul, high-frequency, point-to-point, low-fare service. Southwest was incorporated in Texas and commenced customer service in 1971 with three Boeing 737 aircraft serving three Texas cities - Dallas, Houston and San Antonio. Today, Southwest operates more than 400 Boeing 737 aircraft in 60 cities and has more than 3,000 flights a day. The airline has the lowest operating cost structure in the domestic airline industry and consistently offers the lowest and simplest fares. It also has among the best overall customer service records. Southwest Airlines currently operates six reservations centers located in Albuquerque, N.M., Chicago, Houston, Oklahoma City, Phoenix, and San Antonio. The company trades on the New York Stock Exchange under the symbol LUV.

Established in 1932, Alaska Airlines Inc is one of the largest United States airline based on passenger traffic and is the dominant U.S. West Coast air carrier. It is symbolized by the Eskimo painted on the tail of the aircraft. Alaska Airlines serves 61 destinations with 422 daily departures in the United States and Mexico. Alaska Air Group Inc. is the holding company for Alaska Airlines and Horizon Air, Seattle-based carriers. Alaska Airlines Inc provides service to British Columbia in Canada and to nine destinations in Mexico. Its hubs are Anchorage, Seattle, Portland and Los Angeles. Alaska Airlines Inc. is a recipient of the Airline Technology Leadership Award by the Air Transport World in 2011.