There are
311 mi
from Saginaw, MI to Ashtabula, OH
That's the driving distance. It would take 5 hours 53 mins to go from Saginaw, Michigan to Ashtabula, Ohio.
The flight distance (direct flight from Saginaw, MI to Ashtabula, OH) is 193.23 mi.
311 mi = 500.02 kms