Air distance from Kathmandu, Nepal to Athens, Greece is 3598 Miles (5790.5 Kilometers / 3124.5 Nautical Miles).
7 hrs, 28 mins is the flight duration between Kathmandu and Athens. 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.