The story
America West Express started as a regional carrier in association with America West Airlines with a hub at Sky Harbor International Airport in Phoenix, Arizona. The name "America West Express" was taken from the old America West Airlines cargo service which had begun in 1985.
America West initially operated de Havilland Canada Dash 8 turboprop aircraft with its own flight crews; however, on November 30, 1992, America West signed a codeshare agreement with Mesa Airlines to operate America West Airlines' regional and commuter services as America West Express.
In the mid-1990s, with the opening of the America West Airlines hub at Port Columbus International Airport in Columbus, Ohio, America West Airlines used Mesa Airlines first with CRJ200s for 8 years with a crew base of pilots and flight attendants and then both Chautauqua Airlines to provide Embraer ERJ 145 regional jet service to feed the hub. When the Columbus hub was shut down, the Chautauqua Airlines code share was discontinued, leaving Mesa as the sole operator of AW Express services.
In 2003, America West greatly increased the size of its express operation by starting new routes operated by regional jets from its hub at McCarran International Airport in Las Vegas, Nevada.
In 2007, America West Express was branded as US Airways Express following the merger of America West with US Airways.
From Wikipedia’s article on America West Express, shared under CC BY-SA 4.0.4