Piedmont Triad International Airport (IATA: GSO, ICAO: KGSO, FAA LID: GSO) (commonly referred to locally as "PTI") is an airport located in unincorporated Guilford County, North Carolina, west of Greensboro, serving the Piedmont Triad region of Greensboro, High Point and Winston-Salem as well as the entire Piedmont Triad region in North Carolina, United States. The airport, located just off Bryan Boulevard, sits on a 3,770 acre (1,526 ha) campus and has three runways. It is the third busiest airport in North Carolina, averaging 280 takeoffs and landings each day. PTI is owned and operated by the Piedmont Triad Airport Authority.