Miles between Longmont, CO and Downers Grove, IL

There are
980 mi
from Longmont, CO to Downers Grove, IL

That's the driving distance. It would take 17 hours 28 mins to go from Longmont, Colorado to Downers Grove, Illinois.

The flight distance (direct flight from Longmont, CO to Downers Grove, IL) is 897.04 mi.

980 mi = 1,577.85 kms