There are
2,214 mi
from Kennewick, WA to Troy, OH
That's the driving distance. It would take 1 day 14 hours to go from Kennewick, Washington to Troy, Ohio.
The flight distance (direct flight from Kennewick, WA to Troy, OH) is 1,796.89 mi.
2,214 mi = 3,563.59 kms