Air distance from Seattle, USA to Adamstown, Pitcairn Islands is 5026 Miles (8088.6 Kilometers / 4364.6 Nautical Miles).
Flight duration time from Seattle to Adamstown is 10 hrs, 26 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.