There are
1,396 mi
from Mckinney, TX to San Dimas, CA
That's the driving distance. It would take 1 day to go from Mckinney, Texas to San Dimas, California.
The flight distance (direct flight from Mckinney, TX to San Dimas, CA) is 1,216.87 mi.
1,396 mi = 2,247.31 kms