Hubbed in Pittsburgh, All American Aviation Company began serving the Ohio River valley in 1939.
Ten years later, the company changed its name to All American Airways, switching from airmail to passenger service.
In 1953, All American Airways changed its name to Allegheny Airlines.
In the following two decades, Allegheny Airlines expanded progressively, adding the Douglas DC-9 jet to its fleet in 1966 and acquiring Lake Central Airlines in 1968 and Mohawk Airlines, in 1972.
In 1979, Allegheny Airlines changed its name to USAir, later acquiring San Diego-based PSA (Pacific Southwest Airlines) (1987) and Winston-Salem, NC-based Piedmont Airlines (1988).
In late November, 1984, USAir received its first Boeing 737, being the launch customer for the 737-300.
In 1989, USAir was one of world's largest airlines, operating over 5,000 daily flights.
During the early 1990s, USAir introduced flights to London, Paris and Frankfurt, accepting a large investment from British Airways that laid the foundation for one of the first transatlantic airline alliances.
In 1996, after the alliance with British Airways ended in a court battle, USAir rebranded itself to US Airways.
In late May, 2000, US Airways announced plans to be taken over by UAL Corp., the parent company of United Airlines, for no less than $4.3 billion, but negotiations stalled and the offer was withdrawn in late July, 2001, UAL paying $50 million to US Airways for this.
On the 4th of May, 2004, US Airways became the 15th member of the Star Alliance.
US Airways Group and America West Holdings were merged in mid-May, 2005, and the resulting airline retained the US Airways name.
Since the merger, the airline continued its growth, but customer satisfaction remained really low, with US Airways being the leader in service complaints with 4.4 complaints per 100,000 customers (2007).
Despite low customer satisfaction, US Airways was the number one ontime airline in 2008 among the big six hub and spoke carriers, maintaining its position during 2009, too.
In 2009, US Airways entered into codeshare agreements with Qatar Airways, ANA and TACA.
In the third quarter of 2009, US Airways unveiled the Envoy Suite, its newest transatlantic, lie-flat business class cabin.
In the summer of 2010, US Airways announced a major expansion of its bilateral codeshare agreement with Star Alliance partner, Spanair, and a new bilateral codeshare agreement with Star Alliance partner, Turkish Airlines.
In November 2011, US Airways announced a new addition to the airline's portfolio of partners operating as US Airways Express, SkyWest Airlines.
In 2012, US Airways started offering the option to breeze through the airport (priority check-in and security lanes) and onto the aircraft (priority boarding) with PreferredAccess. PreferredAccess can be purchased online during online check-in.
In February 2013, US Airways and American Airlines announced they will combine to create the new American Airlines, a premier global carrier. At this time, US Airways and American Airlines will continue to operate as two separate airlines. It is expected that the American merger with US Airways to be completed in the third quarter of 2013.
US Airways (together with US Airways Express) operates over 3,100 daily flights to 200 destinations in 30 countries from its hubs in Phoenix, Charlotte and Philadelphia, .
US Airways and US Air were involved in just a few deadly incidents, the worst (and also latest) of them occurring in early September, 1004, when a Boeing 737 crashed while maneuvering to land at Pittsburgh International Airport, killing all 132 people on board.