Air distance from Thimphu, Bhutan to Phnom Penh, Cambodia is 1477.7 Miles (2378.1 Kilometers / 1283.2 Nautical Miles).
3 hrs, 4 mins is the flight duration between Thimphu and Phnom Penh. 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.