Miles between Thornton, CO and Niles, IL

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

That's the driving distance. It would take 17 hours 39 mins to go from Thornton, Colorado to Niles, Illinois.

The flight distance (direct flight from Thornton, CO to Niles, IL) is 906.71 mi.

997 mi = 1,604.17 kms