Miles between Thornton, CO and Norco, CA

There are
993 mi
from Thornton, CO to Norco, CA

That's the driving distance. It would take 17 hours 20 mins to go from Thornton, Colorado to Norco, California.

The flight distance (direct flight from Thornton, CO to Norco, CA) is 805.80 mi.

993 mi = 1,597.69 kms