Air distance from San Diego, USA to Sapporo, Japan is 5255 Miles (8457.1 Kilometers / 4563.4 Nautical Miles).
Flight duration time from San Diego to Sapporo is 10 hrs, 54 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.