There are
2,051 mi
from Missoula, MT to Chattanooga, TN
That's the driving distance. It would take 1 day 12 hours to go from Missoula, Montana to Chattanooga, Tennessee.
The flight distance (direct flight from Missoula, MT to Chattanooga, TN) is 1,692.50 mi.
2,051 mi = 3.22 kms