Air distance from Seattle Washington to Alofi Niue is 5445.2 Miles (8763.3 Kilometers / 4728.6 Nautical Miles).
Flight duration time from Seattle Washington to Alofi Niue is 11 hrs, 18 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.