KKLS is the ICAO code for Southwest Washington Regional Airport (IATA KLS), located in Kelso, WA.
Southwest Washington Regional Airport (KKLS) is a medium airport in Kelso, WA. Pilots and dispatchers reference it by ICAO code KKLS or IATA code KLS. It sits in North America.
Southwest Washington Regional Airport is a regional airport primarily serving general aviation, charter, and corporate flight departments. The 4,391-foot runway means it is well-suited as a dedicated bizjet field, free from airline scheduling pressure.
The longest runway measures 4,391 ft (1,338 m), a light-jet-class field. Representative aircraft that operate comfortably here include the Phenom 300, Citation CJ4, and Learjet 75. In practice this limits operations to light jets, turboprops, and short-field-capable aircraft.
Southwest Washington Regional Airport sits near sea level at 20 ft.
Local operations run on America/Los_Angeles. Without scheduled airline traffic, the field tends to be quieter and more flexible for charter and corporate operations — a useful characteristic for early morning, late night, or short-notice flights that would be impractical at a hub.
SkyAccess currently tracks 180 departing and 1 arriving private-jet legs at KKLS across the next six months of operator inventory. 2 charter operators have run trips through this field in our recent inventory window.
Regional fields like KKLS are a meaningful share of US private aviation — closer to the trip's actual origin or destination than the nearest major hub, with shorter ramp-to-cabin times that are the main reason owners and brokers prefer them.