Miles between Thornton, CO and New Castle, IN

There are
1,134 mi
from Thornton, CO to New Castle, IN

That's the driving distance. It would take 20 hours 20 mins to go from Thornton, Colorado to New Castle, Indiana.

The flight distance (direct flight from Thornton, CO to New Castle, IN) is 1,036.95 mi.

1,134 mi = 1.61 kms