Air distance from Canberra, Australia to Kathmandu, Nepal is 6004.3 Miles (9663 Kilometers / 5214.2 Nautical Miles).
12 hrs, 28 mins is the flight duration between Canberra and Kathmandu. 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.