Air distance from Kathmandu, Nepal to Chittagong, Bangladesh is 533.8 Miles (859.1 Kilometers / 463.6 Nautical Miles).
Flight duration time from Kathmandu to Chittagong is 1 hrs, 19 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.