Miles between Decatur, IL and Thornton, CO

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

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

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

952 mi = 1,532.27 kms