Miles between Longmont, CO and Collinsville, IL

There are
889 mi
from Longmont, CO to Collinsville, IL

That's the driving distance. It would take 15 hours 45 mins to go from Longmont, Colorado to Collinsville, Illinois.

The flight distance (direct flight from Longmont, CO to Collinsville, IL) is 812.50 mi.

889 mi = 1,431.49 kms