Miles between Thornton, CO and Westmont, IL

There are
979 mi
from Thornton, CO to Westmont, IL

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

The flight distance (direct flight from Thornton, CO to Westmont, IL) is 896.95 mi.

979 mi = 1,575.99 kms