John F. Kennedy International Airport is the primary international airport serving New York City. It is the busiest international air passenger gateway into North America, the 22nd-busiest airport in the world, the sixth-busiest airport in the United States, and the busiest airport in the New York airport system. JFK handled just over 59 million passengers in 2017. Over ninety airlines operate out of the airport, with non-stop or direct flights to destinations in all six inhabited continents.