However, the busiest Lufthansa Airbus A340-600 route in terms of available seat kilometers (ASK) is between FRA and Hong Kong. The Airbus A340, including the largest version of the quad-engine jet ...

KLM Airlines operates three Boeing 747-400 cargo aircraft. They will be replaced in a few years when Airbus delivers three A350 freighters. (Photo: Shutterstock/M.J.J. de Vaan) Air France-KLM has ...