Miles between Longmont, CO and Decatur, IL

There are
977 mi
from Longmont, CO to Decatur, IL

That's the driving distance. It would take 17 hours 13 mins to go from Longmont, Colorado to Decatur, Illinois.

The flight distance (direct flight from Longmont, CO to Decatur, IL) is 853.72 mi.

977 mi = 1,571.60 kms