There are
2,189 mi
from Middletown, OH to Oceanside, CA
That's the driving distance. It would take 1 day 15 hours to go from Middletown, Ohio to Oceanside, California.
The flight distance (direct flight from Middletown, OH to Oceanside, CA) is 1,875.19 mi.
2,189 mi = 3,523.51 kms