Miles between Thornton, CO and Allen Park, MI

There are
1,252 mi
from Thornton, CO to Allen Park, MI

That's the driving distance. It would take 22 hours 15 mins to go from Thornton, Colorado to Allen Park, Michigan.

The flight distance (direct flight from Thornton, CO to Allen Park, MI) is 1,142.42 mi.

1,252 mi = 1.61 kms