December 12, 2017, ©. Leeham Co: Air France-KLM, or really Air France, has after a long dialogue with its trade unions set up Joon, a new LCC operation in the group. The new airline flew its first flight, Paris Charles de Gaulle (CDG) – Barcelona, on December 1st. Air France-KLM has already an LCC daughter, Transavia. So why Joon? When Air France and KLM merged 2004, KLM had the year before acquired 100% of Transavia, its charter and low-cost daughter.