How many international airports are close enough for you to fly out of? Vote in our poll!
Lots, really, although some just cover certain countries, and others do the long treks. If I want to fly to the US, I'd use Manchester or Glasgow, but certain US routes are from London only, so I'd have to decide whether to spend 5 hours going there, or make the change required from a Manchester flight.
The nearest airport is Newcastle, (we're a bit remote these days!), but that's mainly for Europe or Egypt, places like that with short-ish flights; there's other smaller ones which just do local flights, or to Amsterdam, which is one of the hubs, ditto Zurich, Munich etc.
When we flew to Hawaii, it was a choice whether to go by train and spend a night in London, before a morning flight to San Fran; or morning flight from the local Leeds/Bradford, where we lived, to Amsterdam, then change to San Fran. We should have done the latter, as both aeroplanes landed within 5 mins of each other, and we'd have saved an expensive night in a Heathrow Airport hotel....
Technically I have three or more, though realistically I have one that I strongly prefer (Philly). I just tried Newark for the first time and it went okay, but it was expensive and not as convenient to get there.