SATA Air Açores is an airline based in São Sebastião, Ponta Delgada in the Azores, Portugal. It operates scheduled passenger, cargo and mail services around the Azores. It provides its own maintenance and handling services and manages four regional airports. Its main base is at João Paulo II Airport, Ponta Delgada. It also maintains a subsidiary for mid- and long-haul flights, Azores Airlines, the former SATA International.

On August 21, 1941, a group of investors that included Augusto Rebelo Arruda, José Bensaúde, Augusto d'Athayde, Corte Real Soares de Albergaria, Albano de Freitas da Silva and the company Bensaúde & Co. Lda. (through its managing director António de Medeiros e Almeida) established Sociedade Açoreana de Estudos Aéreos Lda. (English: Azorean Aviation Studies Company, Ltd.) to look into the feasibility of developing an inter-island airline that would link the Azorean archipelago and continental Portugal, and to obtain the governmental concession to do so. Augusto Rebelo Arruda eventually transferred his shares to Bensaúde & Co. Lda. on September 15, 1947, although the first Sociedade Açoreana de Transportes Aéreos (English: Azorean Air Transport Company) flight occurred from Santa Maria Airport in June, 1947. Captain Marciano Veiga piloted the first flight at the controls of a twin-engine Beechcraft (named Açor) with seven passengers.

The Portuguese government granted temporary concession to the airline, which operated mail, cargo and air passenger services between São Miguel (Santana Field, until 1969), Terceira (at Achada, Lajes) and Santa Maria airports. By May 23, 1948 the airline had received two de Havilland DH.104 Dove aircraft to supplement its operations. On August 5, 1948, one of these Beechcraft failed to take to the air and crashes on take-off: all the passengers and crew were killed, prompting the suspension of flight operations. Two new DH.104 Doves would be delivered on May 23, 1949, with the capacity for nine passengers, and a Douglas DC-3 Dakota (CS-TAD) with capacity for 26 passengers would enter into by July 1, 1964.

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