Mississippi County Airport (ICAO: KCHQ, FAA LID: CHQ) is a public use airport in Mississippi County, Missouri, United States. It is owned by the Mississippi County Commission and located four nautical miles (5 mi, 7 km) south of the central business district of Charleston, Missouri. Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned CHQ by the FAA but has no designation from the IATA, (which assigned CHQ to Chania International Airport serving Chania, Greece).