There are
2,243 mi
from Great Falls, MT to Chesapeake, VA
That's the driving distance. It would take 1 day 17 hours to go from Great Falls, Montana to Chesapeake, Virginia.
The flight distance (direct flight from Great Falls, MT to Chesapeake, VA) is 1,920.95 mi.
2,243 mi = 3,609.11 kms