There are
1,940 mi
from Green Bay, WI to Seatac, WA
That's the driving distance. It would take 1 day 9 hours to go from Green Bay, Wisconsin to Seatac, Washington.
The flight distance (direct flight from Green Bay, WI to Seatac, WA) is 1,645.64 mi.
1,940 mi = 1.61 kms