Miles between Longmont, CO and Chatham, IL

There are
936 mi
from Longmont, CO to Chatham, IL

That's the driving distance. It would take 16 hours 29 mins to go from Longmont, Colorado to Chatham, Illinois.

The flight distance (direct flight from Longmont, CO to Chatham, IL) is 815.58 mi.

936 mi = 1,507.03 kms