There are
2,099 mi
from Downey, CA to Radcliff, KY
That's the driving distance. It would take 1 day 12 hours to go from Downey, California to Radcliff, Kentucky.
The flight distance (direct flight from Downey, CA to Radcliff, KY) is 1,812.45 mi.
2,099 mi = 3,378.60 kms