Passenger flights on the Airbus A340 are increasingly rare, with just one in every 109 widebody services globally on them, based on examining the latest Cirium data. The aging and fuel-inefficient, but certainly characterful and exciting, quadjet is rarer still in short-haul markets, including, of course, within Europe. For fun, just one in 135,444 (!) intra-European services will see the type this summer. SWISS has pulled its planned Zurich-Geneva A340 flights, which hasn't helped.