Mankato Airport (ICAO: KTKO, FAA LID: TKO) is a city-owned public-use airport located one nautical mile (1.85 km) northwest of the central business district of Mankato, a city in Jewell County, Kansas, United States. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned TKO by the FAA but has no designation from the IATA.