Miles between Billings, MT and Lake Forest, IL

There are
1,207 mi
from Billings, MT to Lake Forest, IL

That's the driving distance. It would take 21 hours 11 mins to go from Billings, Montana to Lake Forest, Illinois.

The flight distance (direct flight from Billings, MT to Lake Forest, IL) is 1,051.76 mi.

1,207 mi = 1.61 kms