There are
1,635 mi
from Flagstaff, AZ to Radcliff, KY
That's the driving distance. It would take 1 day 4 hours to go from Flagstaff, Arizona to Radcliff, Kentucky.
The flight distance (direct flight from Flagstaff, AZ to Radcliff, KY) is 1,433.49 mi.
1,635 mi = 2,631.75 kms