Miles between Thornton, CO and Union City, TN

There are
1,037 mi
from Thornton, CO to Union City, TN

That's the driving distance. It would take 19 hours 6 mins to go from Thornton, Colorado to Union City, Tennessee.

The flight distance (direct flight from Thornton, CO to Union City, TN) is 895.54 mi.

1,037 mi = 1,668.34 kms