There are
1,849 mi
from Missoula, MT to Seguin, TX
That's the driving distance. It would take 1 day 7 hours to go from Missoula, Montana to Seguin, Texas.
The flight distance (direct flight from Missoula, MT to Seguin, TX) is 1,472.61 mi.
1,849 mi = 1.61 kms