Air Austral is a French airline with its headquarters at Roland Garros Airport in Sainte-Marie, Réunion, France. The airline's main base of flight operations is Roland Garros Airport. It operates scheduled services from Réunion to France, South Africa, Australia, New Caledonia, and a number of destinations in the Indian Ocean. The company has 900 employees.

Air Austral was created in December 1974 by local businessman Gérard Ethève. It was Réunion's first commercial airline, known as Réunion Air Services (RAS). By August 1977 RAS had started regional services from Sainte-Marie to Mayotte with a 32-seat Hawker Siddeley HS 748 turboprop. RAS became Air Réunion in December, 1986.

In October 1990 Air Réunion is purchased by Sematra, a company 46% owned by the local councils of Réunion with the remaining shares owned by banks and other private partners. A month later, Air Réunion became Air Austral. Two months later, Air Austral bought its first Boeing 737-500. Another 737-500 was acquired in 1994, and in 1997 the airline purchased a 737-300QC, which enabled both passenger and cargo only traffic. In 2000 the airline took delivery of an ATR 72-500, a short-haul turboprop. By then, Air Austral operated from both Roland Garros Airport in Sainte-Marie and Pierrefonds Airport in Saint Pierre with scheduled services to Mayotte, Johannesburg, South Africa, Comoros, Mauritius, the Seychelles, and three destinations in Madagascar (Antananarivo, Tamatave, Nosy Be, Majunga). In 2003, Air Austral launched its first long-haul service between Réunion and Paris, with two Boeing 777-200ERs. The two Boeing 777s were joined by a third Boeing 777-200ER in 2005. A second long-haul route from Réunion to Marseille and Lyon was established.