There are
537 mi
from Missoula, MT to Cottonwood Heights, UT
That's the driving distance. It would take 8 hours 39 mins to go from Missoula, Montana to Cottonwood Heights, Utah.
The flight distance (direct flight from Missoula, MT to Cottonwood Heights, UT) is 444.04 mi.
537 mi = 863.67 kms