It depends on your exact route, but the approximate driving distance by road is 370 miles.
About 25 driving miles.
541 miles
The driving distance is about 810 miles.
The shortest driving distance is 41.4 miles.
391 miles
about 400 miles
It is 406.80 miles according to MapQuest.
It is 854.41 miles according to MapQuest.
There are approximately 1,212 miles of driving distance between Cincinnati, OH and Rapid City, SD, totaling around 17 hours 50 minutes of driving time.
about 850 miles
1525 Miles - 2455 Km
The driving distance from Rapid City, South Dakota to Sioux Falls, South Dakota is 353 miles via I-90 E per MapQuest. The driving time per MapQuest is 4 hours and 48 minutes.