Aeroposta Argentina was an airline of Argentina, subsidiary of the french airline Aéropostale, established in the late 1920s.
Around 1929 the French airline Aéropostale started expanding its airmail service to South America. In Argentina the task to open new lines was given, among others, to the two well-known French aviators Jean Mermoz, as main pilot, and Antoine de Saint-Exupéry as director of the newly formed company in Buenos Aires. In those early days, commercial aviation was still in its infancy and the pioneers had to scout for everything from potential landing strips to gasoline depots. His experiences in Argentina would later inspire Saint-Exupéry his novel Vol de Nuit.
In 1929, regular flights to Posadas and later to Mendoza were started. The following year the service expanded to include Comodoro Rivadavia and San Antonio Oeste, closely followed by Río Gallegos. This saw the creation of LASO (Línea Aérea Sud Oeste) and LANE (Línea Aérea Nordeste), which became LADE (Líneas Aéreas del Estado) in 1945.
Another local airline in operation at that time was ALFA (Aviación Litoral Federal Argentino) and it was this airline that took delivery of the first DC3s into the country. In 1946, ALFA and LADE merged to become FAMA (Flota Aérea Mercante Argentina) which was to be the first Argentine airline to fly intercontinental. Competition in the international market was intense and so, in due course, the Argentine flag carrier Aerolíneas Argentinas was created.