Miles between Ontario, CA and Duncanville, TX

There are
1,396 mi
from Ontario, CA to Duncanville, TX

That's the driving distance. It would take 23 hours 55 mins to go from Ontario, California to Duncanville, Texas.

The flight distance (direct flight from Ontario, CA to Duncanville, TX) is 1,198.98 mi.

1,396 mi = 1.61 kms