There are
897 mi
from Mckinney, TX to Algonquin, IL
That's the driving distance. It would take 17 hours 6 mins to go from Mckinney, Texas to Algonquin, Illinois.
The flight distance (direct flight from Mckinney, TX to Algonquin, IL) is 768.70 mi.
897 mi = 1,443.72 kms