Miles between Ontario, CA and Buffalo Grove, IL

There are
1,986 mi
from Ontario, CA to Buffalo Grove, IL

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

The flight distance (direct flight from Ontario, CA to Buffalo Grove, IL) is 1,697.97 mi.

1,986 mi = 1.61 kms