Air distance from Kathmandu, Nepal to Kampala, Uganda is 3970.2 Miles (6389.4 Kilometers / 3447.7 Nautical Miles).
8 hrs, 14 mins is the flight duration between Kathmandu and Kampala. 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.