- Kushiro Airport (IATA: KUH, ICAO: RJCK) is an airport located in Kushiro, Hokkaido, Japan. It is the largest airport in eastern Hokkaido and serves as a gateway to the region. The airport primarily operates domestic flights, connecting Kushiro with other major cities in Japan such as Tokyo, Osaka, and Sapporo. It also offers a limited number of international flights to destinations in South Korea and China. The airport has one terminal building and provides various facilities and services for passengers, including shops, restaurants, and rental car services.