Size of a city alone isn’t enough to support international air service. Size of the metro area, primary destinations from that area, available aircraft, and concentration of business are much more important. And that’s why Phoenix – the 6th largest city in the US – gets only a single transatlantic flight (and a marginal one for British Airways at that).
Here are key factors airlines use in choosing international flying. And it’s why even when the idea comes up for Phoenix, it gets rejected…