Okinawa (OKA) to Shimojishima (SHI): 182 miles (293 km) great-circle, about 0h 50m nonstop by our estimate. Cheapest fare observed: $100 round-trip on Skymark Airlines, nonstop, departing July 1, 2026.
$100 round-trip, Skymark Airlines BC543, departing 2026-07-01 at 10:20, returning 2026-07-04. The recorded itinerary left on a Wednesday, returning on a Saturday 3 nights later; the fare was observed 67 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $100, it ranked 4th of the 28 round-trip fares we recorded from OKA (median $461). That is 55.0 cents per great-circle mile (round-trip price over one-way distance), above the OKA median of 33.3 cents across 27 round-trip routes.
Routes from OKA of similar length: Miyako City (176 mi) at $206 and Ishigaki (246 mi) at $76.
OKA to SHI is the only one of 28 OKA routes where Skymark Airlines priced cheapest. It is the 26th longest of the 28 routes we track from OKA.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Tokyo, Asia/Tokyo; flight time is our estimate.