There are
1,742 mi
from Mckinney, TX to Vacaville, CA
That's the driving distance. It would take 1 day 6 hours to go from Mckinney, Texas to Vacaville, California.
The flight distance (direct flight from Mckinney, TX to Vacaville, CA) is 1,459.85 mi.
1,742 mi = 2,803.52 kms