Sion Airport alternate airfield for the Air Force. 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".
Sion Hill also contains a brick tenant house, "circa" 1790, with two rooms on each of two levels. The house originally featured formal gardens, now largely lost. The property preserves expansive views of Chesapeake Bay and the town of Havre de Grace. The house was listed for sale on 9/11/2018 for 1.2 million dollars. Sion Hill Sion Hill is a National Historic Landmark in Havre de Grace, Maryland, notable as an example of high-style Federal architecture and as the home of a family of prominent officers of the United States Navy. Work began at Sion Hill around 1785 for the Rev. John