シアトル・タコマ国際空港
The city of Arlington owns the Arlington Municipal Airport, located southwest of downtown Arlington. The airport is primarily used for general aviation and light business, and is home to 475 aircraft, including 10 helicopters, 20 gliders, and 23 ultra-light aircraft. Approximately 130 businesses are located on airport property, of which one-quarter are involved in aviation-related uses directly impacting the airport. In the 1990s, the airport was explored as a candidate for expansion into a regional airport to relieve Seattle–Tacoma International Airport. The plan was ultimately abandoned by 1996, as the Puget Sound Regional Council instead chose to construct a third runway at Seattle–Tacoma International Airport.