General Wayne A. Downing Peoria International Airport (IATA: PIA, ICAO: KPIA, FAA LID: PIA) is a civil/military public airport five miles west of Peoria, in Peoria County, Illinois. The airport is on the northwest edge of Bartonville, near Bellevue. It is owned by the Metropolitan Airport Authority of Peoria, which often refers to it as Peoria International Airport.