Miles between Billings, MT and Downers Grove, IL

There are
1,218 mi
from Billings, MT to Downers Grove, IL

That's the driving distance. It would take 21 hours 20 mins to go from Billings, Montana to Downers Grove, Illinois.

The flight distance (direct flight from Billings, MT to Downers Grove, IL) is 1,054.84 mi.

1,218 mi = 1.61 kms