St. Gallen-Altenrhein Airport (IATA: ACH, ICAO: LSZR) is a small airport in Altenrhein in the Canton of St. Gallen, Switzerland, near Lake Constance. It is the home base for People's Airlines. Airport St. Gallen Altenrhein is located in Switzerland, near the city of Altenrhein. The international codes of St. Gallen Altenrhein airport are ICAO: LSZR and IATA: ACH. St. Gallen Altenrhein is located at latitude 47.485 and longitude 9.56077. The elevation above sea level is 1306 feet (398 meters).

St. Gallen Altenrhein Airport (ACH) is located in the municipality of Altenrhein in Switzerland, Europe. It's a medium airport in Switzerland, based in the Canton of St. Gallen. Passengers can fly to and from the airport with a scheduled service. St. Gallen-Altenrhein Airport is located in Eastern Switzerland,