1924 KLM cover, 1st test flight flown to the Dutch East Indies

1925 KLM cover, regular flight from Paris to Amsterdam and back

1926 KLM cover, by boat from the Dutch East Indies to Marseille and flown via Paris to the Netherlands

1927, KLM card, renewal test flight to the Dutch East Indies, signed by pilot Koppen

1928 KLM card, 3th test flight to the Dutch East Indies, flown from Calcutta to Rangoon

1929 KLM card, 1st return flight (night) from Berlin to Rotterdam

1930 KNILM cover, test flight from Batavia to Pakanbaroe

1931 KNILM cover, 1st airmail flight from Batavia to Sydney, "Abel Tasman", signed by crew

1932 KLM card, 1st domestic flight from Zierikzee to Vlissingen, only 26 letters carried

1933 KLM cover, 1st flight to Belgium, Rotterdam to Knocke (Zoute)

1934 KLM flyer, 1st flight to the West Indies, from Bandoeng to Willemstad

1935 KLM cover, 1st return flight from Milan to Amsterdam (Rotterdam)

1936 KLM cover, special flight from Amsterdam to Doncaster/Liverpool and further to Lundy

1937 KLM cover, 500th flight to the Dutch East Indies, flown from Brussels (via Amsterdam) to Batavia

1938 KNILM cover, inaugural flight from Batavia to Sydney, signed by pilot van Messel

1939 KLM cover, 1st return flight from Kristiansand to Amsterdam

1940 KLM cover, due to war threat Swiss airmail flown from Napels to Johannesburg

1941 KLM cover, 1st flight from Willemstad to Kingston

1943 KLM cover, 1st flight from Oranjestad to Miami

1945 KLM card, 1st flight from Amsterdam to Malmo

1946 KLM card, 1st daily flight from Amsterdam to Zurich

1947 KLM cover, 1st flight from Enschede to Brussels (no official mail)

1948 KLM cover, 1st flight from Tunis to Geneva

1949 KLM card, 2nd special flight flown from Vienna to Amsterdam

1950 KLM card, 1st flight flown from Amsterdam to Munich (via Dusseldorf and Neurenberg)

1951 KLM cover, 1st flight flown from Luxemburg (via Amsterdam) to Tokyo

1952 KLM card, 1st return flight from Santiago de Chili to Amsterdam

1953 KLM cover, special flight "Christchurch Race" flown from (Amsterdam), London to Christchurch

1954 KLM cover, twice weekly flight flown from Lydda (Israel) to Amsterdam

1955 KLM cover, 1st flight flown from Amsterdam to Kabul

1956 KLM cover, 1st flight flown from Luxemburg to Madrid

1957 KLM cover, 1st flight flown from Amsterdam to Houston

1958 KLM cover, 1st Polar flight flown from Anchorage to Tokyo, only 60 letters carried

1959 KLM cover, 1st flight flown from Amsterdam to Saigon

1960 KLM cover, 1st flight flown from the UK (via Amsterdam) to New York

1961 KLM cover, 1st flight flown from Guayaquil to Amsterdam and back, only 6 letters carried

1962 KLM cover, 1st return flight from Tirana to Amsterdam, only 25 letters carried, signed by pilot Trip

1963 KLM cover, 1st flight flown from Amsterdam to Kuwait

1964 KLM cover, 1st return flight from Varna (Bulgaria) to Amsterdam

1965 KLM cover, 1st flight flown from Amsterdam to Bucarest

1966 KLM cover, inaugural flight flown from Willemstad to Port of Spain

1967 KLM cover, 1st flight flown from Amsterdam to Freetown

1968 KLM cover, special Olympic flight flown from Budapest to Mexico

1969 KLM cover, 1st flight flown from Amsterdam to Nairobi

1970 KLM cover, 1st return flight from Chicago to Amsterdam

1971 KLM cover, 1st flight flown from Curacao to New York

1972 KLM cover, 1st regular flight flown from Amsterdam to Melbourne

1973 KLM cover, 1st flight flown from Bahrain to Istanbul

1974 KLM cover, 1st flight flown from Denmark (via Amsterdam) to Toronto

1975 KLM card, 1st flight in cooperation with SLM flown from Willemstad (via Paramaribo) to Amsterdam

1976 KLM cover, 1st flight flown from Amsterdam to Guatemala

1977 KLM cover, 1st flight flown from Dubai to Kuala Lumpur

1978 KLM cover, 1st flight flown from Czech Republic (via Amsterdam) to Kilimanjaro

1979 KLM cover, 1st flight flown from Amsterdam to Tangier

1980 KLM cover, 1st flight flown from Zurich to Guayaquil

1981 KLM cover, 1st flight flown from Belgium (via Amsterdam) to Atlanta

1982 KLM aerogramme, special flight flown from Amsterdam to Leipzig (Leipziger Messe)

1983 KLM cover, 1st flight flown from Khartoum to Harare

1984 KLM cover, 1st flight flown from Amsterdam to Doha

1985 KLM cover, 1st flight flown from Cyprus (via Amsterdam) to Porto

1986 KLM cover, 1st flight flown from Amsterdam to Vancouver

1987 KLM cover, 1st return flight from Izmir to Amsterdam

1988 KLM cover, 1st flight flown from Amsterdam to Orlando

1989 KLM cover, 1st flight flown from Berlin (via Amsterdam) to Ottawa

1990 KLM cover, 1st flight flown from the UK (via Amsterdam) to Turin

1991 KLM cover, 1st flight flown from Amsterdam to Minneapolis

1992 KLM cover, 1st return flight from Detroit to Amsterdam

1993 KLM cover, 1st flight flown from Amsterdam to San Fransisco

1994 KLM cover, 1st return flight from Osaka to Amsterdam

1995 KLM cover, 1st return flight from Almaty to Amsterdam

1996 KLM cover, 1st flight flown from Amsterdam to Soerabaja

1997 KLM cover, 1st return flight from Nagoya to Amsterdam

1998 KLM cover, 1st flight flown from Doha to Dhahran

1999 KLM cover, 1st flight flown from Amsterdam to Torp

2001 KLM cover, 1st flight flown from Amsterdam to Bremen

2002 KLM cover, 1st return flight from Miami to Amsterdam

2003 KLM cover, 1st flight flown from Amsterdam to Thessaloniki

2004 KLM cover, 1st return flight from Riga to Amsterdam

2005 KLM cover, special flight flown from Vienna (via Amsterdam) to Taipei (Int. Stamp Exhibition)

2006 KLM cover, 1st return flight from Billund to Amsterdam

2007 KLM cover, 1st flight flown from Amsterdam to Muscat

2008 KLM cover, 1st flight flown from Amsterdam to Panama City

2009 KLM cover, 1st return flight from Liverpool to Amsterdam

2010 KLM cover, 1st flight flown from Amsterdam to Kigali

2011 KLM cover, 1st flight flown from Austria (via Amsterdam) to Xiamen

2012 KLM cover, 1st flight from Amsterdam to Luanda

2013 KLM cover, 1st return flight from Florence to Amsterdam

2014 KLM cover, 1st return flight from Turin to Amsterdam

2015 KLM cover, 1st flight flown from Amsterdam to Montpellier

2016 KLM cover, 1st return flight from Southampton to Amsterdam

2017 KLM cover, 1st return flight from Catania to Amsterdam

2018 KLM cover, 1st return flight from Vaxjo to Amsterdam

2019 KLM cover, 1st return flight from Las Vegas to Amsterdam

2020 KLM cover, 1st return flight from Cork to Amsterdam