Feeder service was inaugurated over Air Mail Route 94 from New York City to Buffalo by Robinson Airlines on September 19, 1948. Teterboro Airport was used as the New York City terminal. Binghamton, Endicott, and Johnson City were all served through the Broome County Airport. 

Douglas DC-3 aircraft were utilized. 

This cover was carried on the inaugural Air Mail Route 94 flight from the Buffalo, New York Airport Mail Facility to New York, New York (where it was backstamped) and is listed in the Contract Air Mail Flights (CAM) section of The American Air Mail Catalogue as 94E7f.

A change in ownership resulted in the airline changing its name to Mohawk Airlines on August 23, 1952.  

On April 12, 1972, the Civil Aeronautics Board approved the merger of Mohawk Airlines with Allegheny Airlines, with Allegheny Airlines (later renamed USAir and US Airways) as the surviving company. The takeover was completed by June 1, 1972.

US Airways was a major American airline that ceased to operate independently when the Federal Aviation Administration granted a single operating certificate for US Airways and American Airlines on April 8, 2015.