Air distance from Singapore, Singapore to Sendai, Japan is 3467.5 Miles (5580.3 Kilometers / 3011.1 Nautical Miles).
7 hrs, 12 mins is the flight duration between Singapore and Sendai. 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.