Miles between Boulder, CO and Butte, MT

There are
770 mi
from Boulder, CO to Butte, MT

That's the driving distance. It would take 12 hours 49 mins to go from Boulder, Colorado to Butte, Montana.

The flight distance (direct flight from Boulder, CO to Butte, MT) is 552.62 mi.

770 mi = 1,238.50 kms