Miles between Longmont, CO and East St Louis, IL

There are
880 mi
from Longmont, CO to East St Louis, IL

That's the driving distance. It would take 15 hours 33 mins to go from Longmont, Colorado to East St Louis, Illinois.

The flight distance (direct flight from Longmont, CO to East St Louis, IL) is 805.75 mi.

880 mi = 1,416.61 kms