There are
1,435 mi
from Mckinney, TX to Signal Hill, CA
That's the driving distance. It would take 1 day 1 hour to go from Mckinney, Texas to Signal Hill, California.
The flight distance (direct flight from Mckinney, TX to Signal Hill, CA) is 1,238.81 mi.
1,435 mi = 2,308.65 kms