There are
1,581 mi
from Tustin, CA to Galveston, TX
That's the driving distance. It would take 1 day 3 hours to go from Tustin, California to Galveston, Texas.
The flight distance (direct flight from Tustin, CA to Galveston, TX) is 1,387.45 mi.
1,581 mi = 1.61 kms