Air distance from Kathmandu, Nepal to Dushanbe, Tajikistan is 1224.8 Miles (1971.1 Kilometers / 1063.6 Nautical Miles).
Flight duration time from Kathmandu to Dushanbe is 2 hrs, 44 mins. 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.