Yonaguni Airport — Yonaguni, Japan

Yonaguni Airport, coded OGN, serves Yonaguni Island, the westernmost inhabited island of Japan, located closer to Taiwan than to mainland Okinawa. This small but vital airport connects the remote island's residents to the rest of Okinawa Prefecture via flights to Naha and Ishigaki. Yonaguni is renowned among divers for its underwater rock formations, sometimes claimed to be ancient ruins, and for being one of the best places in Japan to see hammerhead sharks. OGN's runway and terminal facilities are modest, reflecting the island's small population, but the airport is essential lifeline infrastructure given Yonaguni's remote location. Tourism, fishing, and a Japan Self-Defense Forces presence on the island all depend on the connectivity that Yonaguni Airport provides.