There are
1,265 mi
from Thornton, CO to Bucyrus, OH
That's the driving distance. It would take 23 hours 6 mins to go from Thornton, Colorado to Bucyrus, Ohio.
The flight distance (direct flight from Thornton, CO to Bucyrus, OH) is 1,157.24 mi.
1,265 mi = 1.61 kms