There are
2,145 mi
from Decatur, IL to Lacey, WA
That's the driving distance. It would take 1 day 13 hours to go from Decatur, Illinois to Lacey, Washington.
The flight distance (direct flight from Decatur, IL to Lacey, WA) is 1,755.01 mi.
2,145 mi = 3.22 kms