There are
1,880 mi
from Spokane, WA to Centralia, IL
That's the driving distance. It would take 1 day 8 hours to go from Spokane, Washington to Centralia, Illinois.
The flight distance (direct flight from Spokane, WA to Centralia, IL) is 1,549.50 mi.
1,880 mi = 1.61 kms