Air distance from Kathmandu, Nepal to Lisbon, Portugal is 5281 Miles (8499 Kilometers / 4586.1 Nautical Miles).
10 hrs, 57 mins is the flight duration between Kathmandu and Lisbon. 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.