In 1929, Air Union Lignes d'Orient (est. 1923 as Messageries Transariennes) was merged with Air Asie into Air Orient. Four years later five companies, incl. Air Orient, were merged into Air France.
Maurice Noguès, the famous aviation pioneer and WWI hero, served with Lignes d'Orient/Air Orient as chief pilot and managing director. He was the driving force behind the company's rapid expansion to the East, with regular mail & passenger service reaching Beirut, Damascus, Baghdad, Saigon and Bangkok.