Amsterdam Airport Schiphol (IATA: AMS, ICAO: EHAM), (Dutch: Luchthaven Schiphol), is the main int'l airport of the Netherlands. It is located 9 kilometres southwest of Amsterdam, Holland. Schiphol opened on 16 September 1916 as a military airbase. The end of the First World War also saw the beginning of civilian use of Schiphol Airport and the airport eventually lost its military role completely. It is the third busiest airport in Europe in terms of passengers. The airport is built as a single-terminal concept: one large terminal split into three large departure halls. Schiphol is the hub for KLM and its regional affiliate KLM Cityhopper as well as for Corendon Dutch Airlines, Martinair, Transavia and TUI fly Netherlands. The airport also serves as a European hub for Delta Air Lines and Jet Airways and as a base for EasyJet, Small Planet Airlines and Vueling.