Sant'Illuminato Airfield (ICAO: LIAL) is a small general aviation airport located near Città di Castello, a town in the Umbria region of central Italy, in the province of Perugia. The airfield primarily serves private pilots, flight training operations, and light aircraft activity in the area. The facility is not served by scheduled commercial airlines and has no IATA code assigned. It functions as a local aerodrome supporting general aviation, aeroclub activities, and occasional charter or business flights in the upper Tiber Valley region.