There are
1,787 mi
from Overland Park, KS to Washougal, WA
That's the driving distance. It would take 1 day 6 hours to go from Overland Park, Kansas to Washougal, Washington.
The flight distance (direct flight from Overland Park, KS to Washougal, WA) is 1,478.12 mi.
1,787 mi = 1.61 kms