Three sizable commercial airports, each with unique sites and purposes, serve phoenix . flight booking phone number at phoenix 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/phoenix-sky-harbor-international-airport-phx/