There are
770 mi
from San Mateo, CA to Fountain Hills, AZ
That's the driving distance. It would take 14 hours 13 mins to go from San Mateo, California to Fountain Hills, Arizona.
The flight distance (direct flight from San Mateo, CA to Fountain Hills, AZ) is 654.09 mi.
770 mi = 1,239.22 kms