There are
2,224 mi
from Great Falls, MT to Patchogue, NY
That's the driving distance. It would take 1 day 16 hours to go from Great Falls, Montana to Patchogue, New York.
The flight distance (direct flight from Great Falls, MT to Patchogue, NY) is 1,933.73 mi.
2,224 mi = 3,579.41 kms