Arlington Municipal Airport (ICAO: KAWO, FAA LID: AWO) is a public airport located three miles (5 km) southwest of the central business district of Arlington, a city in Snohomish County, Washington, United States. It is owned and operated by the City of Arlington. Many U.S. airports use the same three-letter location identifier for the FAA and IATA. However, this airport is assigned AWO by the FAA but has no designation from the IATA.