Miles between Thornton, CO and Placentia, CA

There are
1,013 mi
from Thornton, CO to Placentia, CA

That's the driving distance. It would take 17 hours 42 mins to go from Thornton, Colorado to Placentia, California.

The flight distance (direct flight from Thornton, CO to Placentia, CA) is 823.33 mi.

1,013 mi = 1.61 kms