There are
1,338 mi
from Rialto, CA to Gainesville, TX
That's the driving distance. It would take 23 hours 32 mins to go from Rialto, California to Gainesville, Texas.
The flight distance (direct flight from Rialto, CA to Gainesville, TX) is 1,159.58 mi.
1,338 mi = 1.61 kms