Northwest Airlines
– founded in 1926 as Northwest Airways
– changed to Northwest Airlines in 1934
– branded as Northwest Orient Airlines from 1947 to 1986 (but never changed legal name)
– acquired Republic Airlines in 1986
Republic Airlines
– formed in 1979 by the merger of North Central Airlines and Southern Airways
– when acquired by Northwest in 1986, it was the largest U.S. airline according to passengers served
United Airlines
– founded in 1927 as Boeing Air Transport
– 1929 renamed United Aircraft-Transport Corp.
– United Air Lines formed in 1934 by the breakup of the Boeing group into separate parts manufacturing (Pratt and Whitney), airplane manufacturing (Boeing Co.), and air service (United Air Lines) entities
– acquired Capital Airlines in 1961
– in 1968 reorganized as a subsidiary of UAL Inc.
– began trans-Atlantic service in 1991 by purchasing London routes from Pan Am
– world’s largest commercial airline from 1961 until the American-T.W.A. merger
U.S. Airways
– founded in 1931 as All American Aviation
– in 1939, renamed All American Airways
– in 1952, renamed Allegheny Airlines
– acquired Lake Central Airlines (founded in 1951) in 1968
– acquired Mohawk Airlines (founded as Robinson Airlines in 1945) in 1972
– In 1979, renamed USAir
– In 1987, acquired Pacific Southwest Airlines (founded in 1949) and Piedmont Airlines (founded in 1948)
– In 1996 renamed U.S. Airways (already its legal name)
– In 2005, announced planned merger with America West Airlines
AirTran Airways
– founded in 1993 as ValuJet
– acquired AirTran Airways in 1997 (founded in 1993 as Conquest Sun Airlines and renamed AirTran Airways in 1994) and adopted the AirTran name
American Airlines
– In 1934, American Airlines formed from the ailing American Airways Co. (one of several unrelated companies using the name)
– In 1948, sold its European subsidiary, American Overseas Airways to Pan Am
– In 1982, reorganized as a subsidiary of AMR Corp.
– In 1986, acquired Air California
– In 2001, acquired TWA, becoming the world’s largest airline
Continental Airlines
– founded in 1934 as Varney Speed LInes
– renamed Continental in 1937
– acquired Pioneer Airlines in 1953
– In the 1960s spun off Air Micronesia (now known as Continental Micronesia)
– acquired by Texas International in 1982, which adopted the Continental name as its public brand
Delta Air Lines
– founded in 1924 as Huff Daland Dusters
– in 1928, renamed Delta Air Services
– in 1972 acquired Northeast Airlines
– in 1987, acquired Western Airlines (which had been spun off by TWA in 1934)
– in 1991, acquired Pan Am’s European routes
Capital Airlines
– founded as Clifford Ball Airlines in 1927
– in 1930, acquired by Pittsburgh Aviation Industries Copr. and renamed Pennsylvania Air Lines (later Pennsylvania Airlines)
– in 1936, merged with Central Airlines (founded in 1934) to form Pennsylvania Central Airlines
– in 1948 renamed Capital Airlines
– in 1961, acquired by United
Braniff International Airways
– founded in 1928 as Paul R. Braniff Inc.
– re-established in 1930 as Braniff Airways Inc.
– ceased operations in 1982
– relaunched by a Hyatt executive in 1984 as Braniff Inc., a subsidiary of Dalfort Corp.
– ceased operations again in 1990, assets bought by America West Airlines
– failed relaunch again in 1991
Eastern Airlines
– founded in 1926 as Pitcain Aviation
– in 1930 renamed Eastern Air Transport
– in 1938, acquired by Eddie Rickenbacker
– headed by astronaut Frank Borman in the 1980s
– In 1986, acquired by Frank Lorenzo, who sold the shuttle service to Donald Trump and other assets to Texas Air and Continental, also owned by Lorenzo
– In 1990, sold Latin American routes to American and European routes to Continental
– ceased operations in 1991
Pan American World Airways
– founded in 1926
– sold to Aviation Corporation of America
– In 1930, acquired the New York, Rio, and Buenos Aires Line
– In 1980, acquired National Airlines (founded in 1934)
– In 1991, suffering financially following the 1988 Lockerbie disaster, sold its London routes to United and remaining European routes to Delta and then ceased operations
– relaunched in 1996 as a Caribbean service
– merged with Carnival Airlines
– ceased operations again in 1998
– launched a third time by Guilford Transportation, a Mellon company, in 1998, flying between small cities in New England and Florida
– acquired by Boston-Maine Airways, which ran into financial and legal trouble in 2005
Trans World Airlines
– founded in 1925 as Western Air Express
– in 1930 merged with Transcontinental Air Transport and renamed Transcontinental and Western Air (T.W.A.)
– In 1934, spun off Western Air, which became General Airlines and then Western Airlines
– in 1939 acquired by Howard Hughes
– in 1950, renamed Trans World Airlines
– Spun off by its parent company, Trans World Corp., after airline deregulation in 1979
– acquired by Carl Icahn in 1985
– In 1986, acquired Ozark Airlines (founded in 1950)
– In 1998, reorganized as a domestic airline
– acquired by American in 2001
People Express Airlines
– founded in 1981
– In 1985, acquired Frontier Airlines
– acquired Britt Airways and Provincetown-Boston Airlines
– acquired by Texas Air in 1987 and merged into Continental Airlines