Madison County Airport is a public airport located three miles (5 km) north of the central business district of London, a city in Madison County, Ohio, United States. It is owned by the Madison County Airport Authority.Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Madison County Airport is assigned UYF by the FAA but has no designation from the IATA.Facilities and aircraftMadison County Airport covers an area of 148acre which contains one runway designated 9/27 with a 4,001 x 75 ft (1,220 x 23 m) asphalt pavement. For the 12-month period ending April 20, 2007, the airport had 41,410 aircraft operations, an average of 113 per day: 95% general aviation, 5% military and <1% air taxi.