Newark Liberty International Airport (EWR), originally Newark Metropolitan Airport and later Newark International Airport, is the primary airport serving Northern New Jersey and also the New York metropolitan area. The airport straddles the boundary between Elizabeth and Newark, the latter of which is the most populous city in the state. The airport is owned jointly by the cities of Elizabeth and Newark and leased to and operated by the Port Authority of New York and New Jersey.
Newark Airport is one of the major airports located in the New York metropolitan area. It was the first major airport in the United States and through 2013 was the New York–New Jersey metropolitan area's busiest in terms of flights. The airports in the New York metropolitan area combine to create the largest airport system in the United States, the second-largest in the world in terms of passenger traffic and largest in the world in terms of total flight operations. In 2015 Newark Airport handled 37.5 million passengers, JFK handled 56.8 million and LaGuardia Airport handled 28.4 million. In 2016 Newark served a record 40 million passengers.
Newark serves 50 carriers and is the third-largest hub for United Airlines (after Chicago–O'Hare and Houston–Intercontinental), which is the airport's largest tenant (operating in all of Terminal C and part of Terminal A). Newark's second-largest tenant is FedEx Express, whose third-largest cargo hub uses three buildings on two million square feet of airport property. During the 12-month period ending in July 2014, over 68% of all passengers at the airport were carried by United Airlines.
Newark Liberty International Airport has three passenger terminals. Terminal A and Terminal B were completed in 1973 and have four levels. Ticket counters are on the top floor, except for the second-floor Aer Lingus, Virgin Atlantic and Delta Air Lines counters and first-floor British Airways, Open Skies and Spirit Airlines counters in Terminal B. Gates and shops are on the third floor. Baggage carousels (both A and B) are on the second floor (B also has some on the first floor) and Terminal B has an international arrivals lounge on that floor too. Finally, short-term parking and ramp operations (restricted areas) are on the ground floor.