Ottawa/Macdonald–Cartier International Airport or Macdonald–Cartier International Airport (L'aéroport international Macdonald-Cartier in French), (IATA: YOW, ICAO: CYOW) in Ottawa, Ontario, Canada is named after Sir John A. Macdonald and Sir George-Étienne Cartier. Located in the south end of the city, 5.5 nautical miles (10.2 km; 6.3 mi) south of downtown Ottawa, it is Canada's sixth busiest airport by airline passenger traffic and fifth busiest by aircraft movements, with 4,685,956 passengers and 160,413 aircraft movements in 2012. The airport is an Air Canada focus city and the home base for First Air. The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency. The airport is one of eight Canadian airports that have United States border preclearance facilities.