Miles between Peoria, IL and Watertown, SD

There are
646 mi
from Peoria, IL to Watertown, SD

That's the driving distance. It would take 11 hours 23 mins to go from Peoria, Illinois to Watertown, South Dakota.

The flight distance (direct flight from Peoria, IL to Watertown, SD) is 479.28 mi.

646 mi = 1,039.12 kms