North Pacific Airlines North Pacific Airlines North Pacific Airlines was a commuter air carrier formed in 1987 which operated scheduled passenger service on behalf United Airlines via a code sharing agreement as an United Express carrier initially from the Seattle–Tacoma International Airport (SEA) to three destinations in Washington state and also to Portland, Oregon. By 1989, the airline had expanded its route network and was serving fifteen destinations located in Idaho, Montana, Oregon and Washington state (see destination list below). In 1991, the airline, which was owned by WestAir Holding, Inc., was merged with WestAir Commuter Airlines which operated flights in California and
Chicago and Southern Air Lines Chicago and Southern Air Lines Chicago and Southern Air Lines (C&S) was a United States airline that started life as Pacific Seaboard Air Lines in California and was organized on June 15, 1933. Following the move from California, the airline's headquarters were initially located in St. Louis, Missouri and were then moved to Memphis, Tennessee which also served as a hub for the carrier. C&S was merged into Delta Air Lines in 1953 thus providing Delta with its first international routes. The first service was operated by Pacific Seaboard Air Lines on June 23, 1933 in Carleton Putnam's single engine