There are
1,580 mi
from Missoula, MT to Alsip, IL
That's the driving distance. It would take 1 day 3 hours to go from Missoula, Montana to Alsip, Illinois.
The flight distance (direct flight from Missoula, MT to Alsip, IL) is 1,341.89 mi.
1,580 mi = 1.61 kms