Defunct seaplane operators

1927–2025 airline in the United States, former primary international carrier

VARIG (, 'Rio Grandean Airways') was the first airline founded in Brazil, in 1927. From 1965 until 1990, it was Brazil's leading airline and virtually its only international one. In 2005, Varig went into judicial restructuring, and in 2006 it was split into two companies: Flex Linhas Aéreas, informally known as "old" Varig, heir to the original airline, now defunct; and "new" Varig, a new company, fully integrated into Gol Linhas Aéreas Inteligentes.

UK public-sector airline company (1939-1974)

former Australian airline based in Melbourne (1936–2002)

1924–1939 airline in the United Kingdom

American airline operator

defunct airline in Canada

thumb|A Deruluft Dornier Merkur at the opening of Stettin Airstrip 1927. Second from left, [[Stockholm Municipal commissioner Yngve Larsson.]] Deruluft (, or Deruluft) was a joint German-Soviet airline, established on 11 November 1921. Deruluft opened its first permanent airlink between Moscow and Königsberg (via Kaunas and Smolensk) on 1 May 1922. It started a new route between Berlin and Leningrad (via Tallinn) on 6 June 1928, and maintained both routes until 31 March 1936. Deruluft was a successful business, but terminated on 31 March 1937 due to the changed political situation.

1926–1945 German airline

airline

Italian national airline that operated during the fascist regime in the 1930s and 1940s

1929-1965 airline in Brazil

Defunct Canadian airline

airline

Defunct Australian Airline

Sociedad Colombo Alemana de Transportes Aéreos (SCADTA; ), was the world's second airline, and the first airline in Latin America, operating from 1919 until World War II. After the war, SCADTA merged with Colombian regional carrier Colombian Air Service (), or SACO. Together, SCADTA and SACO formed Avianca - Aerovías Nacionales de Colombia, the Colombian flag-carrier. Avianca still operates to this day and claims SCADTA's history as its own, thus making it one of the world's oldest active airlines.

Brazilian aviation company founded in 1927 and absorbed into VARIG in 1993

1929-1933 airline in France

Defunct Croatian airline

first Swiss airline

Wardair Canada was a privately run Canadian airline, founded by Max Ward in 1952 under the name Wardair Ltd, before formally changing its name to "Wardair Canada" in 1976. The airline was acquired by and merged into Canadian Airlines in 1989.

1923-1933 airline in France

defunct Canadian charter float plane airline

airline

defunct airline

Koninklijke Nederlandsch-Indische Luchtvaart Maatschappij (in English: Royal Dutch Indies Airways) was the flag carrier of the former Dutch East Indies. Headquartered in Amsterdam, KNILM was not a subsidiary of the better-known KLM (Royal Dutch Airlines), despite the similar name. The airline had its headquarters in Amsterdam and an office in on the grounds of Tjililitan Airfield (current Halim Perdanakusuma International Airport) in Batavia (current Jakarta).

former airline (Norway)