Salem–Leckrone Airport (IATA: SLO, ICAO: KSLO, FAA LID: SLO) is a public use airport located two nautical miles (4 km) northwest of the central business district of Salem, a city in Marion County, Illinois, United States. It is owned by the Salem Airport Authority. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.