There are
1,303 mi
from Waterloo, IA to Missoula, MT
That's the driving distance. It would take 22 hours 20 mins to go from Waterloo, Iowa to Missoula, Montana.
The flight distance (direct flight from Waterloo, IA to Missoula, MT) is 1,102.93 mi.
1,303 mi = 2,096.52 kms