Air distance from Unalaska, USA to Seattle, USA is 1953.7 Miles (3144.2 Kilometers / 1696.6 Nautical Miles).
Flight duration time from Unalaska to Seattle is 4 hrs, 3 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.