There are
1,938 mi
from Missoula, MT to Alvin, TX
That's the driving distance. It would take 1 day 9 hours to go from Missoula, Montana to Alvin, Texas.
The flight distance (direct flight from Missoula, MT to Alvin, TX) is 1,570.30 mi.
1,938 mi = 1.61 kms