There are
2,027 mi
from Peoria, IL to Seatac, WA
That's the driving distance. It would take 1 day 11 hours to go from Peoria, Illinois to Seatac, Washington.
The flight distance (direct flight from Peoria, IL to Seatac, WA) is 1,676.76 mi.
2,027 mi = 3.22 kms