Miles between Longmont, CO and Clayton, MO

There are
870 mi
from Longmont, CO to Clayton, MO

That's the driving distance. It would take 15 hours 19 mins to go from Longmont, Colorado to Clayton, Missouri.

The flight distance (direct flight from Longmont, CO to Clayton, MO) is 795.02 mi.

870 mi = 1,400.74 kms