This article discusses KLM destinations since 1920.
KLM was set up by Albert Plesman on 7 October 1919 and started operations on 19 May 1920. The first route served was the Amsterdam–London one, flown with DH.9As that carried just two passengers on a charter basis. Two Fokker F.IIs that were delivered in September 1920 were later deployed on this very first route. Intercontinental flights were started with Fokker F.VII equipment in November 1924 , serving the Dutch East Indies, although it was not until 1931 that regular services on this line were implemented. It normally took 11 or 12 days to complete the 9,000-mile (14,000 km) long flight between Amsterdam and Batavia, calling at Budapest, Athens, Cairo, Baghdad, Bushire, Jask, Karachi, Jodhpur, Allahabad, Calcutta, Akyab, Rangoon, Bangkok, Medan and Palembang. In 1926, the Rotterdam–Amsterdam–Copenhagen run was extended to Malmö.
Singapore was first served in May 1933KNILM and added as an intermediate stop for the Amsterdam–Batavia line. By April 1934 , Berlin, Hamburg and Liverpool were already part of the European route network. In May that year, KLM became the first airline that linked Continental Europe with the North of England, when the Amsterdam–Hull route was inaugurated; the Amsterdam–Liverpool service was re-routed via Doncaster in mid-1936. By April 1939 , the following twenty-one lines were operative: Amsterdam–Berlin, Amsterdam–Bremen–Hamburg, Amsterdam–Christiansand–Oslo, Amsterdam–Copenhagen–Malmö, Amsterdam–Copenhagen–Norrköping–, Amsterdam–Copenhagen–Stockholm, Amsterdam–Eindhoven, Amsterdam–Groningen–Leeuwarden–Amsterdam, Amsterdam–Leipzig–Budapest–Athens–Alexandria–Lydda–Baghdad–Basra–Jask–Karachi–Jodhpur–Allahabad–Calcutta–Rangoon–Bangkok–Penang–Medan–Singapore–Palembang–Batavia–Bandoeng that connected with KNILM services, Amsterdam–Manchester–Liverpool, Amsterdam–Twente, Amsterdam–Texel, Amsterdam–London, Amsterdam–Paris, Amsterdam–Rotterdam–Basle–Zurich, Amsterdam–Rotterdam–Cologne, Amsterdam–Rotterdam–Frankfort–Milan–Rome, Amsterdam–Rotterdam–Haamstede–Flushing–Knocke/Zoute, Amsterdam–Rotterdam–London, Amsterdam–Rotterdam–Prague–Vienna–Budapest, and Paris–Copenhagen–Stockholm.
, when it was taken over from