There are
1,592 mi
from Missoula, MT to Calumet City, IL
That's the driving distance. It would take 1 day 3 hours to go from Missoula, Montana to Calumet City, Illinois.
The flight distance (direct flight from Missoula, MT to Calumet City, IL) is 1,353.24 mi.
1,592 mi = 1.61 kms