There are
1,735 mi
from Mckinney, TX to Mill Valley, CA
That's the driving distance. It would take 1 day 6 hours to go from Mckinney, Texas to Mill Valley, California.
The flight distance (direct flight from Mckinney, TX to Mill Valley, CA) is 1,486.97 mi.
1,735 mi = 2,792.95 kms