Zürich Airport, is an international airport serving Zürich. It is the largest hub of Swiss International Air Lines. It is 13 kilometres (8 mi) north of central Zürich, in the municipalities of Kloten, Oberglatt, Rümlang, Winkel and Opfikon, all of which are within the canton of Zurich. It was opened in 1948. It is also known as Kloten Airport.