Miles between Ontario, CA and Lemont, IL

There are
1,970 mi
from Ontario, CA to Lemont, IL

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

The flight distance (direct flight from Ontario, CA to Lemont, IL) is 1,690.75 mi.

1,970 mi = 1.61 kms