Allegheny had 41 Convair 580 in the fleet in 1975.
Allegheny utilised the BAC 1-11 on its routes.
Allegheny had 36 Douglas DC-9 in its fleet.
The Airlines flew the Nord 262 as Allegheny Commuter.
An Allegheny BAC 1-11 with a new livery in 1975.
In 1949 the company was renamed All American Airways as it switched from airmail to passenger service. In 1952 it was again renamed, to Allegheny Airlines. In August 1953 it scheduled flights to 32 airports and in May 1968 to 46; the June 1978 timetable shows 53 airports plus 30 more that just had Allegheny Commuter.
In the early 1960s Allegheny added the Convair 540 turboprop. The aircraft proved unreliable, with many problems with its British-made Napier Eland turbines that had replaced the Convair's piston engines. The airline bought new Fairchild F-27Js that the company named "Vistaliner". The F-27J was a U.S.-built version of the Fokker F27. The company was jokingly referred to as "Agony Air". The airline switched to General Motors/Allison turboprops in the Convair 580 which the carrier named the "Vistacruiser".
Allegheny Airlines was perhaps the first airline to create an network of affiliated regional airlines, the Allegheny Commuter System.
Contributing to Allegheny’s growth were the acquisitions of regional carriers Lake Central Airlines in 1968 and Mohawk Airlines in 1972. Mohawk added British Aircraft Corp. BAC One-Eleven twinjets to the fleet; Allegheny then bought more used One-Elevens.
Allegheny added other jets, notably the Douglas DC-9-30 which the company named the "Vistajet". Other jets included Boeing 727-100s and 727-200s and the Douglas DC-9-50, a stretched DC-9-30.
As deregulation dawned, Allegheny—looking to shed its regional image—changed its name to USAir on October 28, 1979.
Revenue Passenger-Miles (Millions)
(Sched Service Only)
(Mohawk was struck on 12 November 1970; the strike continued into 1971.)
Under USAir, which eventually renamed itself US Airways, the Allegheny name continued to be used by the parent company, keeping the trademark under US Airways' control. The Allegheny commuter division was originally headquartered at the Reading Airport KRDG in Reading Pennsylvania, and flew a large fleet of Shorts 330s and 360s, being the launch customer for the Shorts 360. It had three Fokker F27 "Friendship" turboprops, and was the last US operator of passenger F27s. After replacing much of its Shorts fleet, and retiring the F27s, it merged with another fully owned USAir subsidiary, Pennsylvania Airlines, headquartered at Harrisburg International Airport near Harrisburg, and the combined airline retained the historic name until its own merger with another wholly owned subsidiary, Piedmont Airlines. After retiring earlier aircraft, Allegheny before and after its mergers mainly flew De Havilland Canada Dash 8turboprop aircraft to 35 airports in the northeastern United States, and eventually Canada, from hubs at Boston and Philadelphia. Its activities and Dash 8 fleet were incorporated into Piedmont Airlines in 2004. Today an Airbus A319 aircraft (N745VJ) of US Airways is painted in Allegheny colors.
On June 7, 1971, Allegheny Airlines Flight 485, a Convair 580, en route from Washington DC to New Haven CT (via New London, CT) crashed short of the runway at New Haven. 26 passengers and 2 crew members were killed; Two passengers and one crew member survived. Pilot Error was the cause of the crash.
On June 23, 1976, Allegheny Airlines Flight 121, a DC-9, crashed on the runway in windshear at Philadelphia International Airport. There were 86 injuries and 0 fatalities.