Miles between Chicago, IL and Longmont, CO

There are
1,000 mi
from Chicago, IL to Longmont, CO

That's the driving distance. It would take 18 hours 3 mins to go from Chicago, Illinois to Longmont, Colorado.

The flight distance (direct flight from Chicago, IL to Longmont, CO) is 916.80 mi.

1,000 mi = 1.61 kms