There are
2,017 mi
from Elgin, IL to Seatac, WA
That's the driving distance. It would take 1 day 11 hours to go from Elgin, Illinois to Seatac, Washington.
The flight distance (direct flight from Elgin, IL to Seatac, WA) is 1,697.41 mi.
2,017 mi = 3,245.99 kms