Bellechasse Airfield (ICAO: LSTB) is a small general aviation airfield located near Sugiez, a village in the canton of Fribourg, Switzerland. Situated in the agricultural lowlands between Lake Murten and Lake Neuchâtel, the airfield serves private pilots, gliders, and light aircraft operations in the region. The airfield is not served by commercial airlines and has no scheduled passenger services. It functions primarily as a base for local flying clubs and general aviation activity, typical of many small Swiss aerodromes operated under Swiss federal aviation regulations. Bellechasse is associated with the broader Bellechasse agricultural and penal estate, a historic institution in the area. The airfield is modest in infrastructure and does not hold an IATA code, reflecting its non-commercial status.