Koyukuk Airport (KYU)

Koyukuk Airport (KYU), identified by its ICAO code PFKU, is a critical aviation facility serving the remote community of Koyukuk in the Yukon-Koyukuk Census Area of Alaska. The airport features a single 4,000-foot gravel-and-dirt runway (06/24) and acts as a vital lifeline for the transport of essential goods, mail, and medical evacuations, as the community lacks permanent road access. As of 2025, the facility is designated as an "imminently threatened" site due to severe riverine erosion from the Yukon River and is currently in the active planning phase for a full village and airport relocation. The terminal facilities at Koyukuk are strictly utilitarian and designed for basic Arctic operations. There is no formal passenger terminal building; instead, operations are managed from a small integrated passenger shelter used for waiting and cargo handling. Travelers will find a complete absence of standard commercial amenities such as retail shops, restaurants, or public restrooms. All flight logistics are managed directly by regional carriers like Wright Air Service, and passengers are encouraged to be entirely self-sufficient and to confirm flight status in advance, as the runway can become soft and prone to rutting during the spring thaw. Infrastructure at the airfield includes basic navigational aids and essential maintenance equipment, with the FAA recently awarding grants for new snow removal machinery to ensure the current strip remains operational during the long-term relocation transition. The airport's location near the confluence of the Yukon and Koyukuk rivers makes it highly susceptible to seasonal flooding and permafrost-driven land collapse (usteq). Ground transportation to the village is informal, primarily involving private vehicles or pre-arranged community transport, providing a necessary link from the airfield to the nearby residential areas as the community prepares for its eventual move to more stable terrain.