Miles between Thornton, CO and Union City, TN

There are
1,043 mi
from Thornton, CO to Union City, TN

That's the driving distance. It would take 18 hours 56 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.

1,043 mi = 1.61 kms