Roskilde Airport, officially known as Copenhagen Airport, Roskilde, is located 4 nautical miles (7 km) southeast of Roskilde near the town Tune. It was opened in 1973 as the first of three planned relief airports around Copenhagen. These plans were shelved shortly after, and the two other relief airports never made it past the planning stage. The airport is owned and operated by Københavns Lufthavne A/S which also operates Copenhagen's major airport at Kastrup. The airport had 25,053 passengers in 2003. The airport is fully equipped, but most flights from this airport are taxi-flights, small-plane regular flights to minor domestic islands or business jets.