Air distance from Seattle, USA to Shenzhen, China is 6489.6 Miles (10444 Kilometers / 5635.6 Nautical Miles).
13 hrs, 28 mins is the flight duration between Seattle and Shenzhen. 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.