Miles between Thornton, CO and Decatur, IL

There are
951 mi
from Thornton, CO to Decatur, IL

That's the driving distance. It would take 16 hours 50 mins to go from Thornton, Colorado to Decatur, Illinois.

The flight distance (direct flight from Thornton, CO to Decatur, IL) is 848.44 mi.

951 mi = 1,531.08 kms