Belfast Municipal Airport is a public use airport in Waldo County, Maine, United States. It is owned by the City of Belfast and is located one nautical mile (1.85 km) southwest of its central business district.Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned BST by the FAA but has no designation from the IATA (which assigned BST to Bost Airport in Lashkar Gah, Afghanistan).Facilities and aircraftBelfast Municipal Airport covers an area of 320acre at an elevation of 198 feet (60 m) above mean sea level. It has one runway designated 15/33 with an asphalt surface measuring 4,000 by 100 feet (1,219 x 30 m).For the 12-month period ending August 9, 2008, the airport had 10,000 aircraft operations, an average of 27 per day: 80% general aviation and 20% air taxi. At that time there were 26 aircraft based at this airport: 88% single-engine, 8% helicopter and 4% ultralight.