Air distance from Singapore, Singapore to Lucknow, India is 2320.2 Miles (3734 Kilometers / 2014.9 Nautical Miles).
4 hrs, 49 mins is the flight duration between Singapore and Lucknow. 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.