Miles between Ontario, CA and Tomball, TX

There are
1,515 mi
from Ontario, CA to Tomball, TX

That's the driving distance. It would take 1 day 1 hour to go from Ontario, California to Tomball, Texas.

The flight distance (direct flight from Ontario, CA to Tomball, TX) is 1,316.01 mi.

1,515 mi = 1.61 kms