There are
2,142 mi
from Kennewick, WA to Columbus, IN
That's the driving distance. It would take 1 day 13 hours to go from Kennewick, Washington to Columbus, Indiana.
The flight distance (direct flight from Kennewick, WA to Columbus, IN) is 1,740.38 mi.
2,142 mi = 3,447.58 kms