There are
1,946 mi
from Appleton, WI to Seatac, WA
That's the driving distance. It would take 1 day 9 hours to go from Appleton, Wisconsin to Seatac, Washington.
The flight distance (direct flight from Appleton, WI to Seatac, WA) is 1,633.20 mi.
1,946 mi = 1.61 kms