High Quality Content by WIKIPEDIA articles! Kirksville Regional Airport (IATA: IRK, ICAO: KIRK, FAA LID: IRK) is a city owned, public use airport located six nautical miles (7 mi, 11 km) southeast of the central business district of Kirksville, a city in Benton Township, Adair County, Missouri, United States. The airport is situated in Pettis Township, near the village of Millard. It is served by one commercial airline with scheduled passenger service subsidized by the Essential Air Service program.