There are
1,712 mi
from Mckinney, TX to Foster City, CA
That's the driving distance. It would take 1 day 6 hours to go from Mckinney, Texas to Foster City, California.
The flight distance (direct flight from Mckinney, TX to Foster City, CA) is 1,470.19 mi.
1,712 mi = 2,755.79 kms