Air distance from Seattle, USA to Khulna, Bangladesh is 7226.9 Miles (11630.5 Kilometers / 6275.8 Nautical Miles).
Flight duration time from Seattle to Khulna is 15 hrs, 0 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.