Wakkanai Airport (IATA: WKJ, ICAO: RJCW) is a regional airport located in Wakkanai, Hokkaido, Japan. It holds the distinction of being the northernmost airport in Japan, situated near the northern tip of Hokkaido island, close to the Strait of La Pérouse that separates Japan from Russia's Sakhalin Island. The airport primarily serves domestic routes connecting Wakkanai to major Japanese cities, particularly Sapporo (New Chitose Airport). It plays an important role for a city that is geographically remote and serves as a regional hub for the surrounding communities in the far north of Hokkaido. The terminal is modest in scale, reflecting the airport's regional character and relatively low passenger volumes. The surrounding area is known for its harsh winters, wildlife, and proximity to the northernmost point of Japan at Cape Soya.