Miles between Boulder, CO and North Chicago, IL

There are
1,040 mi
from Boulder, CO to North Chicago, IL

That's the driving distance. It would take 18 hours 27 mins to go from Boulder, Colorado to North Chicago, Illinois.

The flight distance (direct flight from Boulder, CO to North Chicago, IL) is 918.78 mi.

1,040 mi = 1,673.79 kms