Miles between Boulder, CO and Hazelwood, MO

There are
856 mi
from Boulder, CO to Hazelwood, MO

That's the driving distance. It would take 15 hours 7 mins to go from Boulder, Colorado to Hazelwood, Missouri.

The flight distance (direct flight from Boulder, CO to Hazelwood, MO) is 799.28 mi.

856 mi = 1,377.72 kms