There are
2,421 mi
from Simi Valley, CA to Ashtabula, OH
That's the driving distance. It would take 1 day 19 hours to go from Simi Valley, California to Ashtabula, Ohio.
The flight distance (direct flight from Simi Valley, CA to Ashtabula, OH) is 2,113.66 mi.
2,421 mi = 3.22 kms