There are
1,778 mi
from Oklahoma City, OK to West Richland, WA
That's the driving distance. It would take 1 day 6 hours to go from Oklahoma City, Oklahoma to West Richland, Washington.
The flight distance (direct flight from Oklahoma City, OK to West Richland, WA) is 1,357.65 mi.
1,778 mi = 1.61 kms