Miles between Boise, ID and Watertown, SD

There are
1,363 mi
from Boise, ID to Watertown, SD

That's the driving distance. It would take 23 hours to go from Boise, Idaho to Watertown, South Dakota.

The flight distance (direct flight from Boise, ID to Watertown, SD) is 948.26 mi.

1,363 mi = 1.61 kms