Shimojishima Airport is located on the small island of Shimoji-shima, part of the Miyako Islands in Okinawa Prefecture, Japan. It was originally developed as a flight training facility and is known for its dual parallel runways, which were used extensively by aviation training schools. The airport holds IATA code SHI and ICAO code RORS. While it has seen limited scheduled commercial passenger service over the years, it has primarily functioned as a training and testing facility rather than a major passenger hub. The airport is situated near Miyakojima City, though physically on the separate island of Shimoji-shima, which is connected to Miyako-jima by a bridge. Its long runways and controlled environment made it particularly suitable for pilot training operations.