Miles between Billings, MT and Rockford, IL

There are
1,152 mi
from Billings, MT to Rockford, IL

That's the driving distance. It would take 20 hours 7 mins to go from Billings, Montana to Rockford, Illinois.

The flight distance (direct flight from Billings, MT to Rockford, IL) is 991.46 mi.

1,152 mi = 1.61 kms