Air distance from Kathmandu, Nepal to Bissau, Guinea Bissau is 6483.2 Miles (10433.7 Kilometers / 5630 Nautical Miles).
Flight duration time from Kathmandu to Bissau is 13 hrs, 27 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.