There are
791 mi
from Mckinney, TX to Radcliff, KY
That's the driving distance. It would take 14 hours 8 mins to go from Mckinney, Texas to Radcliff, Kentucky.
The flight distance (direct flight from Mckinney, TX to Radcliff, KY) is 680.82 mi.
791 mi = 1,273.21 kms