Airports US KLS
Medium Airport
KLS
KKLS

🇺🇸 Southwest Washington Regional Airport

Kelso, US-WA, US 20 ft America/Los_Angeles
Updated Feb 19, 2026

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KLS in 20 seconds
Southwest Washington Regional Airport (IATA: KLS, ICAO: KKLS) serves Kelso, US.
AirportRoutes · updated Feb 19, 2026
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Where is Southwest Washington Regional Airport located?

Southwest Washington Regional Airport is located in Kelso, US, at an elevation of 20 ft. Its IATA code is KLS and ICAO code is KKLS.