The airport is operated by the Port Authority of New York and New Jersey, which also manages the two other major airports in the New York/New Jersey metropolitan area, John F. Kennedy International Airport (JFK) and LaGuardia Airport (LGA), in addition to three smaller airports, Stewart International Airport, Teterboro Airport and the Downtown Manhattan Heliport. Newark is the tenth busiest airport in the United States and the nation's fifth busiest international air gateway.