Miles between Thornton, CO and Athens, TX

There are
860 mi
from Thornton, CO to Athens, TX

That's the driving distance. It would take 15 hours 55 mins to go from Thornton, Colorado to Athens, Texas.

The flight distance (direct flight from Thornton, CO to Athens, TX) is 733.89 mi.

860 mi = 1,383.89 kms