Air distance from Singapore, Singapore to Hanoi, Vietnam is 1377.4 Miles (2216.8 Kilometers / 1196.2 Nautical Miles).
2 hrs, 51 mins is the flight duration between Singapore 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.