Air distance from Riga, Latvia to Hanoi, Vietnam is 4693.6 Miles (7553.6 Kilometers / 4075.9 Nautical Miles).
9 hrs, 44 mins is the flight duration between Riga and Hanoi. 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.