Miles between Thornton, CO and Ann Arbor, MI

There are
1,221 mi
from Thornton, CO to Ann Arbor, MI

That's the driving distance. It would take 21 hours 43 mins to go from Thornton, Colorado to Ann Arbor, Michigan.

The flight distance (direct flight from Thornton, CO to Ann Arbor, MI) is 1,115.26 mi.

1,221 mi = 1.61 kms