There are
1,711 mi
from Great Falls, MT to Pickerington, OH
That's the driving distance. It would take 1 day 7 hours to go from Great Falls, Montana to Pickerington, Ohio.
The flight distance (direct flight from Great Falls, MT to Pickerington, OH) is 1,509.80 mi.
1,711 mi = 2,753.95 kms