Miles between Thornton, CO and Chicago, IL

There are
997 mi
from Thornton, CO to Chicago, IL

That's the driving distance. It would take 17 hours 38 mins to go from Thornton, Colorado to Chicago, Illinois.

The flight distance (direct flight from Thornton, CO to Chicago, IL) is 915.02 mi.

997 mi = 1,604.64 kms