Boeing 737-400

USAir Boeing 737-4B7, N434US, is shown arriving at Baltimore on October 24, 1998.

US Airways Boeing 737-401, N406US, is shown at San Diego wearing basic Piedmont Airlines colors with USAir titles
following the merger of the two carriers.

USAir Boeing 737-401, N417US, is shown at San Diego in November 1990 wearing a hybrid livery consisting of older
USAir fuselage colors with the carrier's new logo.

US Airways Boeing 737-401, N404US, is shown arriving at Chicago O'Hare International Airport on April 22, 2000.