Paris busiest airport system in the world. The city is served by three commercial international airports: Paris-Charles de Gaulle, Paris-Orly and Beauvais-Tillé. Together these three airports recorded traffic of 96.5 million passengers in 2014. There is also one general aviation airport, Paris-Le Bourget, historically the oldest Parisian airport and closest to the city centre, which is now used only for private business flights and air shows. Orly Airport, located in the southern suburbs of Paris, replaced Le Bourget as the principal airport of Paris from the 1950s to the 1980s. Charles de Gaulle Airport, located on the edge of the northern
Transport in Paris Thalys line connects Brussels through 1h22 of rail with up to 26 departures/day, Amsterdam in 3h18 with up to 10 departures/day, Cologne in 3h14, with up to 6 departures/day . Paris had its first airport in the fields of Issy-les-Moulineaux (just to the southern limits of Paris by its Seine river's Left Bank) from the first aviation trials of 1908. Aviation became a serious mode of transport during the course of World War I, which in 1915 led to the installation of a larger and more permanent runway installation near the town of Le Bourget to the north of Paris.