Air distance from Kathmandu, Nepal to Belmopan, Belize is 9327.5 Miles (15011.2 Kilometers / 8100 Nautical Miles).
19 hrs, 22 mins is the flight duration between Kathmandu and Belmopan. 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.