Miles between Thornton, CO and Helena, AL

There are
1,348 mi
from Thornton, CO to Helena, AL

That's the driving distance. It would take 23 hours 25 mins to go from Thornton, Colorado to Helena, Alabama.

The flight distance (direct flight from Thornton, CO to Helena, AL) is 1,100.84 mi.

1,348 mi = 1.61 kms