There are
1,857 mi
from Missoula, MT to Brenham, TX
That's the driving distance. It would take 1 day 8 hours to go from Missoula, Montana to Brenham, Texas.
The flight distance (direct flight from Missoula, MT to Brenham, TX) is 1,488.80 mi.
1,857 mi = 1.61 kms