There are
1,671 mi
from Missoula, MT to Danville, IL
That's the driving distance. It would take 1 day 4 hours to go from Missoula, Montana to Danville, Illinois.
The flight distance (direct flight from Missoula, MT to Danville, IL) is 1,394.33 mi.
1,671 mi = 1.61 kms