There are
1,407 mi
from Waterloo, IA to Kalispell, MT
That's the driving distance. It would take 1 day to go from Waterloo, Iowa to Kalispell, Montana.
The flight distance (direct flight from Waterloo, IA to Kalispell, MT) is 1,132.69 mi.
1,407 mi = 2,264.16 kms