Air distance from Hanoi, Vietnam to Helsinki, Finland is 4657.9 Miles (7496.2 Kilometers / 4044.9 Nautical Miles).
9 hrs, 40 mins is the flight duration between Hanoi and Helsinki. 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.