Air distance from Okayama, Japan to Columbus, USA is 6828.6 Miles (10989.5 Kilometers / 5929.9 Nautical Miles).
Flight duration time from Okayama to Columbus is 14 hrs, 10 mins. This is the In-The-Air flight time. You should also add the taxi time, airport wait times and possible delays due to bad weather, etc. for the total flight duration time.