There are
834 mi
from Sioux Falls, SD to Piqua, OH
That's the driving distance. It would take 15 hours 55 mins to go from Sioux Falls, South Dakota to Piqua, Ohio.
The flight distance (direct flight from Sioux Falls, SD to Piqua, OH) is 682.17 mi.
834 mi = 1,342.04 kms