US Airways, formerly USAir, is an airline based in Arlington, Virginia.

It operates hubs in Philadelphia International Airport, Pittsburgh International Airport, Charlotte Douglas International Airport, and Ronald Reagan Washington National Airport. The airline uses the IATA designator US.

US Airways operates to destinations in the United States, Canada, Mexico, Central America, the Caribbean, and Europe.

US Airways has been invited to join Star Alliance, and will probably join in the first quarter of 2004.