Air distance from Hanoi, Vietnam to Roseau, Dominica is 9779 Miles (15737.8 Kilometers / 8492.1 Nautical Miles).
20 hrs, 18 mins is the flight duration between Hanoi and Roseau. 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.