Miles between Boulder, CO and Horizon City, TX

There are
674 mi
from Boulder, CO to Horizon City, TX

That's the driving distance. It would take 13 hours 4 mins to go from Boulder, Colorado to Horizon City, Texas.

The flight distance (direct flight from Boulder, CO to Horizon City, TX) is 577.40 mi.

674 mi = 1,084.33 kms