There are
1,414 mi
from Mckinney, TX to Placentia, CA
That's the driving distance. It would take 1 day to go from Mckinney, Texas to Placentia, California.
The flight distance (direct flight from Mckinney, TX to Placentia, CA) is 1,221.43 mi.
1,414 mi = 2,275.51 kms