There are
1,798 mi
from Missoula, MT to Longview, TX
That's the driving distance. It would take 1 day 7 hours to go from Missoula, Montana to Longview, Texas.
The flight distance (direct flight from Missoula, MT to Longview, TX) is 1,419.30 mi.
1,798 mi = 1.61 kms