There are
2,135 mi
from Middletown, OH to San Jacinto, CA
That's the driving distance. It would take 1 day 13 hours to go from Middletown, Ohio to San Jacinto, California.
The flight distance (direct flight from Middletown, OH to San Jacinto, CA) is 1,837.30 mi.
2,135 mi = 3,436.68 kms