There are
974 mi
from Sioux Falls, SD to Ashtabula, OH
That's the driving distance. It would take 18 hours 1 min to go from Sioux Falls, South Dakota to Ashtabula, Ohio.
The flight distance (direct flight from Sioux Falls, SD to Ashtabula, OH) is 814.86 mi.
974 mi = 1,567.22 kms