About KLM Royal Dutch Airlines
KLM Royal Dutch Airlines (in full: Koninklijke Luchtvaart Maatschappij, literally Royal Aviation Company; usual English: Royal Dutch Airlines) is a subsidiary of Air France-KLM. Prior to its merger with Air France, KLM was the national airline of the Netherlands. KLM is the oldest carrier in the world.
Air France-KLM is France and the Netherlands' main air carrier. Its KLM subsidiary operates from the airline hub of Schiphol Airport, near Amsterdam, where the subsidiary company has its headquarters.
Air France took over KLM in May 2004, resulting in the creation of Air France-KLM. Air France-KLM is incorporated under French law and its headquarters are located at Roissy-Charles de Gaulle Airport near Paris. Air France-KLM is the largest airline company in the world in terms of operating revenues, and the third largest in the world (largest in Europe) in terms of revenue-passenger-kilometers (RPKs).
Air France-KLM is part of the SkyTeam Alliance with Delta Air Lines, Aeroméxico, Korean Air, Czech Airlines, Alitalia, Northwest Airlines, Aeroflot and Continental Airlines. Both Air France and KLM continue to fly under their distinct brand names.

History
KLM was founded on October 7, 1919, making it the oldest carrier in the world still operating under its original name. The first KLM flight was on May 17, 1920, with a flight from London to Amsterdam carrying two English journalists and a number of newspapers. It was flown by an Airco de Havilland DH16, callsign EALU, piloted by Jerry Shaw. In 1921 KLM started regularly scheduled services. By 1926 they were offering flights to Amsterdam, Rotterdam, Brussels, Paris, London, Bremen, Copenhagen, and Malmo; using primarily Fokker F2 & F3.
Intercontinental service to the colony Netherlands East Indies (nowadays: Indonesia) started in 1929 using Fokker F7-B, although the first non-scheduled KLM flight had been made in 1924 by Fokker F7 Callsign NACC piloted by van der Hoop. The first transatlantic KLM route was between Amsterdam and Curaçao in December 1934 using the Fokker F-XVIII "Snip." On May 21, 1946, KLM launched scheduled service between Amsterdam and New York, while the first polar route was opened on the Amsterdam-Japan route on November 1, 1958.
In March 1960, KLM introduced the first jet aircraft into the its fleet: the Douglas DC-8. Use of Schiphol began in April 1967, and the first Boeing 747 entered the KLM fleet in February 1971, beginning the era of widebody jets. In 1983, KLM reached a deal with Boeing to convert some of its Boeing 747-200s to SUD(stretched upper deck)configuration. This consisted of returning the aircraft to the Boeing factory in Everett,Washington. The work started in 1984 and finished in 1986,the aircraft finishing mostly as Boeing 747-300s,which the airline also operated. In June 1989, KLM introduced the first Boeing 747-400. Later that year, in July, KLM acquired 20% of Northwest Airlines, eventually forming a strong alliance between the two airlines. In March 1994 both KLM and Northwest Airlines introduced World Business Class on intercontinental routes, and in July 1995, KLM introduced its first Boeing 767-300ER.
In March and June 2002, KLM announced that it would be renewing its intercontinental fleets by replacing the Boeing 767s, Boeing 747-300s, and eventually the McDonnell Douglas MD-11 with Boeing 777-200ERs and Airbus A330-200s. The first Boeing 777 was received on October 25, 2003, entering commercial service on the Amsterdam-New York route, while the first Airbus A330-200 was introduced on August 25, 2005 and entered commercial service on the Amsterdam-Washington Dulles route.