Air distance from Seattle, USA to El Aaiun, Western Sahara is 5670.6 Miles (9126 Kilometers / 4924.4 Nautical Miles).
Flight duration time from Seattle to El Aaiun is 11 hrs, 46 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.