SFO - San Fransisco International Airport
London Gatwick
Paris Charles de Gaulle Airport
Beijing Capital International Airport PEK/BJS is the worlds second busiest airport for commercial traffic.
The main airport in Maui is Kahului Airport. This airport is the second busiest airport in the entire State of Hawaii.
London Heathrow Airport, which witnessed a whopping 48.2 million passengers from January to August 2013, continues to be the busiest airport in the UK, with Gatwick a distant second and Newcastle Airport just beating Liverpool John Lennon Airport to tenth place.
Washington Dulles International is the busiest airport in Washington DC
Heathrow Airport.
The Alanta Airport
Heathrow, near London, is the busiest airport in Britain. It is also the busiest international airport in the world.
Heathrow (EGLL) is presently the busiest.
London's Heathrow airport is the busiest.
All of the busiest airports in the world have international flights, so the busiest airport with international service would technically be Hartsfield-Jackson Airport in Atlanta. However, as with most airports in the US, most passengers are domestic. The world's busiest airport by international passengers is London Heathrow.