Miles between Thornton, CO and Billings, MT

There are
543 mi
from Thornton, CO to Billings, MT

That's the driving distance. It would take 8 hours 58 mins to go from Thornton, Colorado to Billings, Montana.

The flight distance (direct flight from Thornton, CO to Billings, MT) is 446 mi.

543 mi = 874.11 kms