There are
2,071 mi
from Joliet, IL to Seatac, WA
That's the driving distance. It would take 1 day 12 hours to go from Joliet, Illinois to Seatac, Washington.
The flight distance (direct flight from Joliet, IL to Seatac, WA) is 1,721.66 mi.
2,071 mi = 3.22 kms