Miles between Billings, MT and South Portland, ME

There are
2,318 mi
from Billings, MT to South Portland, ME

That's the driving distance. It would take 1 day 18 hours to go from Billings, Montana to South Portland, Maine.

The flight distance (direct flight from Billings, MT to South Portland, ME) is 1,866.43 mi.

2,318 mi = 3.22 kms