Miles between Billings, MT and Round Lake Beach, IL

There are
1,184 mi
from Billings, MT to Round Lake Beach, IL

That's the driving distance. It would take 20 hours 49 mins to go from Billings, Montana to Round Lake Beach, Illinois.

The flight distance (direct flight from Billings, MT to Round Lake Beach, IL) is 1,037.09 mi.

1,184 mi = 1.61 kms