Miles between St Peters, MO and Longmont, CO

There are
852 mi
from St Peters, MO to Longmont, CO

That's the driving distance. It would take 14 hours 56 mins to go from St Peters, Missouri to Longmont, Colorado.

The flight distance (direct flight from St Peters, MO to Longmont, CO) is 778.22 mi.

852 mi = 1,370.76 kms