There are
1,981 mi
from Billings, MT to Lansdowne, PA
That's the driving distance. It would take 1 day 11 hours to go from Billings, Montana to Lansdowne, Pennsylvania.
The flight distance (direct flight from Billings, MT to Lansdowne, PA) is 1,717.36 mi.
1,981 mi = 1.61 kms