Miles between St Louis, MO and Ontario, CA

There are
1,796 mi
from St Louis, MO to Ontario, CA

That's the driving distance. It would take 1 day 7 hours to go from St Louis, Missouri to Ontario, California.

The flight distance (direct flight from St Louis, MO to Ontario, CA) is 1,553.80 mi.

1,796 mi = 1.61 kms