Miles between Longmont, CO and Darien, IL

There are
985 mi
from Longmont, CO to Darien, IL

That's the driving distance. It would take 17 hours 35 mins to go from Longmont, Colorado to Darien, Illinois.

The flight distance (direct flight from Longmont, CO to Darien, IL) is 898.86 mi.

985 mi = 1,585.86 kms