Air distance from San Marino, San Marino to Kathmandu, Nepal is 4116.7 Miles (6625.2 Kilometers / 3574.9 Nautical Miles).
Flight duration time from San Marino to Kathmandu is 8 hrs, 32 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.