Gulfport–Biloxi International Airport (IATA: GPT, ICAO: KGPT, FAA LID: GPT) is a joint civil–military public-use airport three nautical miles (6 km) northeast of the central business district of Gulfport, a city in Harrison County, Mississippi, United States.It is owned by the Gulfport–Biloxi Regional Airport Authority and serves the Gulf Coast area.