There are
1,725 mi
from Mckinney, TX to Vallejo, CA
That's the driving distance. It would take 1 day 6 hours to go from Mckinney, Texas to Vallejo, California.
The flight distance (direct flight from Mckinney, TX to Vallejo, CA) is 1,472.57 mi.
1,725 mi = 2,775.63 kms