There are
2,248 mi
from Kennewick, WA to Wilmington, OH
That's the driving distance. It would take 1 day 15 hours to go from Kennewick, Washington to Wilmington, Ohio.
The flight distance (direct flight from Kennewick, WA to Wilmington, OH) is 1,832.73 mi.
2,248 mi = 3,618.30 kms