Miles between Longmont, CO and Chesterfield, MO

There are
856 mi
from Longmont, CO to Chesterfield, MO

That's the driving distance. It would take 15 hours to go from Longmont, Colorado to Chesterfield, Missouri.

The flight distance (direct flight from Longmont, CO to Chesterfield, MO) is 781.36 mi.

856 mi = 1,376.81 kms