Sion Airport Sion Airport Sion Airport (Military: LSMS) is the airport of the city of Sion, Switzerland and is located 2.5 km southwest of Sion city in the Rhone Valley. The airport opened in 1935. The following airlines offer seasonal and charter flights at Sion Airport: The nearest larger international airport is Geneva Airport, approx. to the west, while the smaller Bern Airport is equidistant to the north. The Swiss Air Force uses Sion as one of their four jetfighter air bases, the others being Payerne, Meiringen and Emmen. It is known as "Flugplatzkommando 14 Sion". In addition to the prop-types Pilatus
Sion, Switzerland Valais chose Sierre. In 1840, the Upper and Lower Valais were reunited. But four years later, Sion was occupied by Upper Valais troops during the beginning of the Sonderbund War. Federal troops occupied Sion in November 1847. Sion lost to Turin, Italy in its bid to host the 2006 Winter Olympics. Sion also bid for the 2002 Winter Olympics, which it lost to Salt Lake City, and the 1976 Winter Olympics, which it lost to Denver (the games were reassigned to Innsbruck when Denver residents voted down additional funding). As of February 2018, Sion is one of four cities participating