Miles between Boulder, CO and Florissant, MO

There are
859 mi
from Boulder, CO to Florissant, MO

That's the driving distance. It would take 15 hours 11 mins to go from Boulder, Colorado to Florissant, Missouri.

The flight distance (direct flight from Boulder, CO to Florissant, MO) is 801.61 mi.

859 mi = 1,382.91 kms