Air distance from Roseau, Dominica to Tokyo, Japan is 8688.7 Miles (13983.1 Kilometers / 7545.3 Nautical Miles).
18 hrs, 2 mins is the flight duration between Roseau and Tokyo. 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.