Cheyenne County Municipal Airport is a public airport located one mile (2 km) south of the central business district of St. Francis, a city in Cheyenne County, Kansas, United States. This airport is publicly owned by City of St. Francis.Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Cheyenne County Municipal Airport is assigned SYF by the FAA but has no designation from the IATA (which assigned SYF to Silva Bay on Gabriola Island in British Columbia, Canada). The airport's ICAO identifier is KSYF.Facilities and aircraftCheyenne County Municipal Airport covers an area of 307acre which contains four runways: Runway 9/27: 1,799 x 280 ft (548 x 85 m), Surface: Turf Runway 13L/31R: 2,833 x 180 ft (863 x 55 m), Surface: Turf Runway 13R/31L: 3,138 x 50 ft (956 x 15 m), Surface: Asphalt Runway 18/36: 2,313 x 280 ft (705 x 85 m), Surface: Turf For 12-month period ending June 7, 2006, the airport had 3,950 aircraft operations, an average of 10 per day: 96% general aviation and air taxi. There are 12 aircraft based at this airport, all single engine.