There are
2,326 mi
from Missoula, MT to Lansdowne, PA
That's the driving distance. It would take 1 day 17 hours to go from Missoula, Montana to Lansdowne, Pennsylvania.
The flight distance (direct flight from Missoula, MT to Lansdowne, PA) is 1,981.55 mi.
2,326 mi = 3.22 kms