There are
662 mi
from Waterloo, IA to Choctaw, OK
That's the driving distance. It would take 12 hours 6 mins to go from Waterloo, Iowa to Choctaw, Oklahoma.
The flight distance (direct flight from Waterloo, IA to Choctaw, OK) is 550.72 mi.
662 mi = 1,064.98 kms