Miles between Longmont, CO and Lisle, IL

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

That's the driving distance. It would take 17 hours 24 mins to go from Longmont, Colorado to Lisle, Illinois.

The flight distance (direct flight from Longmont, CO to Lisle, IL) is 893.75 mi.

977 mi = 1,572.66 kms