Southwest Washington Regional Airport (IATA: KLS, ICAO: KKLS, FAA LID: KLS) is a city-owned public-use airport located two nautical miles (3.7 km) southeast of the central business district of Kelso, in Cowlitz County, Washington, United States. The airport was renamed in 2009, prior to which it was known as the Kelso-Longview Regional Airport, or Molt Taylor Field, named after flying car designer Moulton Taylor.