There are
1,821 mi
from Oklahoma City, OK to Klamath Falls, OR
That's the driving distance. It would take 1 day 9 hours to go from Oklahoma City, Oklahoma to Klamath Falls, Oregon.
The flight distance (direct flight from Oklahoma City, OK to Klamath Falls, OR) is 1,380.98 mi.
1,821 mi = 1.61 kms