Miles between Decatur, IL and Pierre, SD

There are
853 mi
from Decatur, IL to Pierre, SD

That's the driving distance. It would take 15 hours 2 mins to go from Decatur, Illinois to Pierre, South Dakota.

The flight distance (direct flight from Decatur, IL to Pierre, SD) is 661.85 mi.

853 mi = 1,372.91 kms