Allegheny Airlines utilized Boeing 727 aircraft to inaugurate service from Columbus, Ohio to Houston on April 1, 1979. Official cachets similar in design, except for color and changes in wording, were used at all offices.

This cover was carried on the inaugural Allegheny Airlines flight from Houston, Texas to Columbus, Ohio (where it was backstamped) and is listed in The American Air Mail Catalogue as AL-D14N.

A Civil Aeronautics Board order, effective June 11, 1979, authorized the corporate title “Allegheny Airlines” to be changed to “USAir, Inc.” The name change reflected the carrier’s geographic expansion and increased airline status.

In early 1997 USAir changed its name to US Airways and introduced a new corporate identity. 

On February 14, 2013, US Airways Group and AMR Corporation announced that the two companies would merge to form the largest airline in the world. The combined airline carries the American Airlines name.