No, it isn't.

When most people refer to a place, they refer to it by it's common name. You fly to JFK, Heathrow, Charles de Gaule, Gatwick, Luton, O'Hare, etc. There is no need to add "airport" to something which so obviously is one in the context.

The familiarity of common names is why wikipedia uses them for article names: http://en.wikipedia.org/wiki/Wikipedia:Article_titles#Common...