Miles between Thornton, CO and Portage, MI

There are
1,127 mi
from Thornton, CO to Portage, MI

That's the driving distance. It would take 20 hours 1 min to go from Thornton, Colorado to Portage, Michigan.

The flight distance (direct flight from Thornton, CO to Portage, MI) is 1,021.16 mi.

1,127 mi = 1.61 kms