Dublin Airport, (Irish: Aerfort Bhaile Átha Cliath) (IATA: DUB, ICAO: EIDW), is an international airport serving Dublin,
It is located 10 km (6 miles) north of Dublin city in a once-rural area near Swords, in the county of Fingal, Ireland. In 2012, over 19 million
passengers passed through the airport, making it the busiest of the state's airports by total passenger traffic, followed by Cork Airport and
Shannon Airport. It also has the greatest traffic levels on the island of Ireland followed by Belfast International Airport, Cork, George Best
Belfast City Airport and Shannon Airport.
Dublin Airport is the headquarters of Ireland's flag carrier Aer Lingus, and Europe's largest no-frills airline Ryanair.
Ireland's third airline, CityJet, is based in the nearby town of Swords.
United States border preclearance services are available at the airport for US-bound passengers, making Dublin one of only two European
airports with this facility (along with Shannon).