There are
1,263 mi
from Thornton, CO to Hazel Park, MI
That's the driving distance. It would take 22 hours 35 mins to go from Thornton, Colorado to Hazel Park, Michigan.
The flight distance (direct flight from Thornton, CO to Hazel Park, MI) is 1,148.19 mi.
1,263 mi = 1.61 kms