There are
1,901 mi
from Gresham, OR to Bethany, OK
That's the driving distance. It would take 1 day 8 hours to go from Gresham, Oregon to Bethany, Oklahoma.
The flight distance (direct flight from Gresham, OR to Bethany, OK) is 1,465.46 mi.
1,901 mi = 1.61 kms