Miles between Ontario, CA and St Charles, IL

There are
1,944 mi
from Ontario, CA to St Charles, IL

That's the driving distance. It would take 1 day 10 hours to go from Ontario, California to St Charles, Illinois.

The flight distance (direct flight from Ontario, CA to St Charles, IL) is 1,677.57 mi.

1,944 mi = 1.61 kms