How early should I arrive at Okushiri Airport?

Okushiri Airport (OIR) on Okushiri Island serves as a small regional hub with a single terminal handling scheduled flights and general aviation; passengers can check the online flight board (オンラインフライトボード) for the latest information on arrivals (到着) and departures (出発). The airport is primarily served by regional carriers operating turboprop aircraft that connect the island to larger hubs on Hokkaido and mainland Japan, offering convenient links for residents and visitors traveling for tourism, fishing, and business. Facilities are basic but efficient, with ground transport options timed to meet incoming flights and seasonal service adjustments common.