Three sizable commercial airports, each with unique sites and purposes, serve New York. flight booking phone number at new york airport The biggest and busiest airport is John F. Kennedy International Airport), located in Queens, and it is mostly used as a major hub for international flights from all over the world. Across the Hudson River in New Jersey, Newark Liberty International Airport serves as a major domestic and international hub, particularly for United Airlines' operations. https://askforairlines.com/john-f-kennedy-international-airport-jfk/