Airports US K3S4
Small Airport
K3S4
K3S4

🇺🇸 Illinois Valley Airport

Cave Junction, US-OR, US 1394 ft America/Los_Angeles
Updated Dec 11, 2025

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K3S4 in 20 seconds
Illinois Valley Airport serves Cave Junction, US.

Traveler experiences at Illinois Valley Airport (K3S4) in Cave Junction, Oregon, suggest a facility primarily serving general aviation with very limited on-site services. Overall sentiment for pilots is likely mixed, appreciating the specialized flight training and the historic museum, but facing significant challenges due to a lack of essential services like fuel. For the casual traveler, there are virtually no traditional airport amenities.

What Travelers Love
  • Specialized Flight Training: The airport hosts Captain Drake's Family Aerial Adventures, offering training for light sport, ultralight airplanes, and gyroplanes, including housing for out-of-town clients.
  • Siskiyou Smokejumper Base Museum: The airport is home to the former Siskiyou Smokejumper Base, which now operates as a museum offering free tours for those interested in its history.
  • Paved Runway: It features a paved asphalt runway (18/36) measuring 4,807 x 75 ft, suitable for general aviation aircraft.
  • Quiet General Aviation Environment: The airport is focused on general aviation with frequent ultralight activity, suggesting a less congested experience for pilots.
Common Complaints
  • No Fuel Available: A significant drawback for pilots is the reported absence of fuel services (Jet and 100LL).
  • Extremely Limited On-site Amenities: Beyond basic fixed-base operator (FBO) services, the airport lacks airframe or powerplant repair, bottled or bulk oxygen, and any other typical terminal facilities. All other services, including stores and gift shops, are located four miles away in Cave Junction.
  • No Commercial Air Service: Illinois Valley Airport (K3S4) does not offer commercial airline service; larger airports for airline connections are in Crescent City, California, or Medford, Oregon.
  • No Security or Customs: As a small general aviation airport, there are no security checkpoints or customs/immigration facilities, which means no related wait times but also no international processing capabilities.

Illinois Valley Airport (K3S4) serves as a functional, no-frills facility ideal for flight training and those seeking to visit the historic smokejumper museum. However, pilots planning to utilize the airport should be aware of the critical lack of fuel and maintenance services, requiring careful flight planning.

AirportRoutes · updated Dec 11, 2025

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Where is Illinois Valley Airport located?

Illinois Valley Airport is located in Cave Junction, US, at an elevation of 1394 ft. Its IATA code is — and ICAO code is K3S4.