There are
2,176 mi
from Kennewick, WA to Radcliff, KY
That's the driving distance. It would take 1 day 13 hours to go from Kennewick, Washington to Radcliff, Kentucky.
The flight distance (direct flight from Kennewick, WA to Radcliff, KY) is 1,783.66 mi.
2,176 mi = 3,501.71 kms