Allegheny Airlines was an airline based in Pittsburgh, Pennsylvania. It was the forerunner of today's US Airways.

Allegheny before 1979

Allegheny merged with Mohawk Airlines in 1977.

Aircraft	From	To	Fleet
Douglas DC-3	1953	1966	24
Martin 202	1955	1966	18
Convair 540	1959	1963	5
Convair 340	1960	1967	17
Convair 440	1962	1974	27
Fokker F27	1965	1974	27
Convair 580	1965	1978	40
Douglas DC-9	1966	1979	89
Nord 262	1968	1977	13
Boeing 727	1970	1979	15
BAC 111	1972	1979	31
Mohawk 298	1975	1979	9

Allegheny under USAir and US Airways

Later, US Airways revived the Allegheny name for one of its wholly owned commuter operators. It flew under the trade name "US Airways Express," maintaining the Allegheny name officially in order to keep the trademark under US Airways' control. The airline was headquartered in Harrisburg, Pennsylvania and flew primarily De Havilland Canada Dash 8 turboprop aircraft until it was acquired by Piedmont Airlines in 2004.