There are
2,132 mi
from Middletown, OH to Rialto, CA
That's the driving distance. It would take 1 day 13 hours to go from Middletown, Ohio to Rialto, California.
The flight distance (direct flight from Middletown, OH to Rialto, CA) is 1,850.98 mi.
2,132 mi = 3,431.02 kms