Miles between Boulder, CO and Huron, SD

There are
635 mi
from Boulder, CO to Huron, SD

That's the driving distance. It would take 11 hours 52 mins to go from Boulder, Colorado to Huron, South Dakota.

The flight distance (direct flight from Boulder, CO to Huron, SD) is 469.55 mi.

635 mi = 1,022.09 kms