Allegheny Airlines - October, 1978

Allegheny Airlines introduce jet service in the October, 1978 timetable.

https://twitter.com/AvGeek71/status/1024316796298518528

Pennsylvania Airlines - May, 1983

Pennsylvania Airlines flew under the Allegheny Commuter brand.

From Wikipedia:

The Allegheny Commuter division was originally headquartered at the Reading Airport in Reading, Pennsylvania, and flew a large fleet of Short 330s and Short 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, Pennsylvania, and the combined airline retained the historic name until its own merger with another wholly owned subsidiary, Piedmont Airlines.

https://twitter.com/AvGeek71/status/1003317071223181313

Allegheny Airlines - September, 1979

This is a great timetable. It features Allegheny morphing into USAir, which would eventually be renamed US Airways.

From Wikipedia:
But with expansion came growing pains: by the 1970s Allegheny Airlines had the nickname "Agony Air" due to customer dissatisfaction with the carrier's service. Even after a later rebranding to "USAir", when service sometimes skidded downward, complainers sometimes dubbed the airline "Useless Air", or even worse, "USScare."
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Allegheny Air System - October, 1972

This is a pretty interesting timetable from Allegheny Air System, which would later change its name to USAir. This 1972 timetable has a commuter system in place, which I believe is one the earliest airlines to arrange for smaller airlines to carry passengers as a partner. Unfortunately, federal guidelines did not yet require airlines to provide the name of their commuters, so we're left with this:

All flights designated with the prefix C are operated with Beech 99, Volpar Beech 18, Nord 262, DeHavilland Heron, and DeHavilland Twin Otter equipment, under the Allegheny trademark, "Allegheny Commuter" provided by independent corporations under agreements with Allegheny.

Baltimore's airport is still listed as Friendship International Airport (BAL) in this timetable. It was probably a few months away from officially becoming Baltimore/Washington Airport which ultimately acquired the BWI code in 1982.

And, to distinguish between the two different types of jet equipment, Allegheny referred to its BAC1-11 as a Fanjet, and its DC-9s were Super Fanjets. The BAC1-11s joined the fleet as a result of the Mohawk Airlines acquisition in April, 1972.


Here is a the first installment of a two-part video from the late 60s that features Allegheny. Part two continues here.

Mohawk Airlines Ad - December, 1968

Mohawk Airlines was a northeast regional airline that was purchased by Allegheny Airlines in 1972, which later changed its name to USAir.

From USAir's website:

Allegheny acquired Mohawk Airlines, a Utica, NY, airline with service to most cities throughout NewYork and New England. With the merger, Allegheny acquired Mohawk's BAC-1-11 jets to complement its DC9s and became the sixth largest airline in the world as measured by passenger boardings.

If you expand this photo, you'll see a sticker on the side of the plane that says something like "Part of Allegheny."