There are
1,668 mi
from San Mateo, CA to Gainesville, TX
That's the driving distance. It would take 1 day 5 hours to go from San Mateo, California to Gainesville, Texas.
The flight distance (direct flight from San Mateo, CA to Gainesville, TX) is 1,436.79 mi.
1,668 mi = 1.61 kms