There are
862 mi
from Mckinney, TX to New Lenox, IL
That's the driving distance. It would take 16 hours 2 mins to go from Mckinney, Texas to New Lenox, Illinois.
The flight distance (direct flight from Mckinney, TX to New Lenox, IL) is 745.49 mi.
862 mi = 1,387.01 kms