There are
884 mi
from Oklahoma City, OK to Menomonee Falls, WI
That's the driving distance. It would take 16 hours 5 mins to go from Oklahoma City, Oklahoma to Menomonee Falls, Wisconsin.
The flight distance (direct flight from Oklahoma City, OK to Menomonee Falls, WI) is 731.36 mi.
884 mi = 1,422.35 kms