Chino Airport (IATA: CNO, ICAO: KCNO, FAA LID: CNO) is a county-owned airport about three miles southeast of Chino, in San Bernardino County, California, United States. The Federal Aviation Administration's National Plan of Integrated Airport Systems for 2007–2011 classified it as a reliever airport, due to its proximity to the Ontario International Airport and the John Wayne Airport (in Orange County).