Miles between Longmont, CO and Herrin, IL

There are
992 mi
from Longmont, CO to Herrin, IL

That's the driving distance. It would take 17 hours 36 mins to go from Longmont, Colorado to Herrin, Illinois.

The flight distance (direct flight from Longmont, CO to Herrin, IL) is 877.34 mi.

992 mi = 1,596.11 kms