There are
1,420 mi
from Mckinney, TX to Temecula, CA
That's the driving distance. It would take 1 day to go from Mckinney, Texas to Temecula, California.
The flight distance (direct flight from Mckinney, TX to Temecula, CA) is 1,181.95 mi.
1,420 mi = 1.61 kms