Austrian Airlines (Österreichische Luftverkehrs AG) (IATA: OS, ICAO: AUA) is the flag carrier of Austria, with its headquarters in Schwechat, Wien-Umgebung. Its main base of operations is the Vienna International Airport.The airline was founded on September 30, 1957, making its first flight on March 18, 1958, when a Vickers Viscount 779 took off...