There are
1,934 mi
from Baytown, TX to Missoula, MT
That's the driving distance. It would take 1 day 9 hours to go from Baytown, Texas to Missoula, Montana.
The flight distance (direct flight from Baytown, TX to Missoula, MT) is 1,561.89 mi.
1,934 mi = 1.61 kms