There are
1,554 mi
from Missoula, MT to Wheaton, IL
That's the driving distance. It would take 1 day 2 hours to go from Missoula, Montana to Wheaton, Illinois.
The flight distance (direct flight from Missoula, MT to Wheaton, IL) is 1,318.99 mi.
1,554 mi = 1.61 kms