There are
2,351 mi
from San Marcos, CA to Elyria, OH
That's the driving distance. It would take 1 day 17 hours to go from San Marcos, California to Elyria, Ohio.
The flight distance (direct flight from San Marcos, CA to Elyria, OH) is 1,994.82 mi.
2,351 mi = 3.22 kms