Air distance from Kathmandu, Nepal to Muscat, Oman is 1701.5 Miles (2738.3 Kilometers / 1477.6 Nautical Miles).
3 hrs, 31 mins is the flight duration between Kathmandu and Muscat. 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.