Air distance from Seattle, USA to Bissau, Guinea Bissau is 6399.2 Miles (10298.5 Kilometers / 5557.1 Nautical Miles).
Flight duration time from Seattle to Bissau is 13 hrs, 17 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.