There are
2,606 mi
from Marietta, GA to Cornelius, OR
That's the driving distance. It would take 1 day 22 hours to go from Marietta, Georgia to Cornelius, Oregon.
The flight distance (direct flight from Marietta, GA to Cornelius, OR) is 2,171.60 mi.
2,606 mi = 4,193.94 kms