[jjmarr]

Just as a fun fact, there are IATA airport codes that designate cities instead of airport for purposes like this. NYC is one of them. So is YTO (Toronto) or CHI (Chicago, which should probably replace ORD).

[jen729w]

LON = London. Heathrow, Gatwick, Stansted, Luton, City, Southend.

[pasc1878]

and Biggin Hill(BQH) - Northolt does have some non RAF flights,