There are
1,377 mi
from Mckinney, TX to Lemon Grove, CA
That's the driving distance. It would take 23 hours 32 mins to go from Mckinney, Texas to Lemon Grove, California.
The flight distance (direct flight from Mckinney, TX to Lemon Grove, CA) is 1,180.55 mi.
1,377 mi = 1.61 kms