There are
1,268 mi
from Kennewick, WA to Mitchell, SD
That's the driving distance. It would take 21 hours 48 mins to go from Kennewick, Washington to Mitchell, South Dakota.
The flight distance (direct flight from Kennewick, WA to Mitchell, SD) is 1,043.10 mi.
1,268 mi = 2,041.25 kms