- Oshima Airport is a small regional airport located on Oshima Island in Japan. It serves as the main gateway for visitors to the island, which is famous for its natural beauty and hot springs. The airport has a single runway and offers domestic flights to and from Tokyo's Haneda Airport. It is owned by the Tokyo government and managed by the Tokyo Port Service. Oshima Airport provides limited facilities for passengers, including a terminal building with check-in counters, waiting areas, and a small convenience store.