Air distance from Kathmandu, Nepal to Porto Novo, Benin is 5579.1 Miles (8978.6 Kilometers / 4844.9 Nautical Miles).
Flight duration time from Kathmandu to Porto Novo is 11 hrs, 35 mins. 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.