Southwest Washington Regional Airport

Southwest Washington Regional Airport is an airport located in Kelso Washington, US. The airport's IATA code is KLS, which is the three-letter code used on boarding passes and flight bookings. The ICAO code is KKLS, used by air traffic control and pilots for flight planning.

The airport operates in the America/Los_Angeles timezone. When planning flights to or from KLS, use our flight duration calculator to account for timezone differences, especially for international travel.

Southwest Washington Regional Airport sits at an elevation of 20 feet (6 meters) above sea level.

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