There are
2,378 mi
from Dayton, OH to Lacey, WA
That's the driving distance. It would take 1 day 18 hours to go from Dayton, Ohio to Lacey, Washington.
The flight distance (direct flight from Dayton, OH to Lacey, WA) is 1,981.72 mi.
2,378 mi = 3.22 kms