- Oita Airport, also known as Oita Airport Kunisaki, is an international airport located in Kunisaki, Oita Prefecture, Japan. It is the main gateway to Oita Prefecture and serves as a hub for domestic and international flights. The airport has a single terminal building and offers various facilities and services for travelers, including shops, restaurants, currency exchange, and car rental services. It connects Oita Prefecture to major cities in Japan, as well as some international destinations.