Miles between Thornton, CO and Louisville, KY

There are
1,110 mi
from Thornton, CO to Louisville, KY

That's the driving distance. It would take 19 hours 47 mins to go from Thornton, Colorado to Louisville, Kentucky.

The flight distance (direct flight from Thornton, CO to Louisville, KY) is 1,034.80 mi.

1,110 mi = 1.61 kms