Miles between Thornton, CO and Freeport, IL

There are
919 mi
from Thornton, CO to Freeport, IL

That's the driving distance. It would take 16 hours 37 mins to go from Thornton, Colorado to Freeport, Illinois.

The flight distance (direct flight from Thornton, CO to Freeport, IL) is 815.69 mi.

919 mi = 1,478.37 kms