Detroit Metropolitan Wayne County Airport (IATA: DTW, ICAO: KDTW, FAA LID: DTW), usually called Detroit Metro Airport, Metro Airport, or simply DTW, is a major international airport in the United States covering 4,850 acres (1,960 ha) in Romulus, Michigan. It is the primary international airport serving Detroit and is Michigan's busiest airport. The Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021 categorized it as a large hub primary commercial service facility.