Airport
KLS Southwest Washington Regional Airport
Southwest Washington Regional Airport (KLS) is a small airport near Kelso, United States with no regular commercial traffic. Below: its exact location and the nearest airport with flights.
IATAKLS
ICAOKKLS
TimezoneAmerica/Los Angeles
Elevation6 m
Airports nearby
Other options near Kelso
Q&A
Answers to your questions
What is Southwest Washington Regional Airport's code?
The IATA code is KLS, the ICAO code is KKLS. It's a small field with no regular commercial traffic.
What's the nearest airport with scheduled flights?
Portland International Airport (PDX), about 63 km away.
About this page
Written and checked by the Around the World team. We compare prices across the major providers, cross-check official sources, and update when something changes. We have no stake in any one provider — links are affiliate links, and the price is the same for you.
Sources: Airport data: OpenFlights (ODbL) · Route network: OpenFlights routes · Getting-there notes: Around the World, checked 2026