There are
2,169 mi
from Allentown, PA to Butte, MT
That's the driving distance. It would take 1 day 14 hours to go from Allentown, Pennsylvania to Butte, Montana.
The flight distance (direct flight from Allentown, PA to Butte, MT) is 1,881.77 mi.
2,169 mi = 3.22 kms