I believe America West could create strong international hubs out of LAS, PHX and, to a lesser degree, CMH. I think it is wrong to say the locations aren't good enough. First of all, Phoenix may not have the population of Los Angeles, but geographically it is similar. The key is to have good and plentiful potential connections. Imagine long-range aircraft (A340-500) arriving from Southeast Asia and Australia with connecting passengers for the Northeast U.S and Eastern Canada. The only market that would be skipped on Asian services would be Southern California. California could be tapped with international services down into Central and South America, the Caribbean and Europe, perhaps using A330-200s (commonality with A340s). PHX would be great for any north/southbound services. British Airways flies a 747-400 to PHX (and San Diego) and it has been quite successful. America West could completely eliminate BA from this route (although the government would never allow it).
Las Vegas would be a great international hub, particularly from Asia. That city draws plentiful amounts of both tourists and business travelers from all over the world as both a vacation spot and massive high-technology convention capacity. LAS could probably be bigger internationally than PHX.
The Columbus hub is small, but it is positioned well to compete with Continental's Cleveland hub. I see room here for limited services to Europe using smaller aircraft. America West must eventually end its relationship with Continental and attack head-on. This would make HP more independent and would mark their entry into the big leagues.
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