There are
745 mi
from Knoxville, TN to Tahlequah, OK
That's the driving distance. It would take 13 hours 26 mins to go from Knoxville, Tennessee to Tahlequah, Oklahoma.
The flight distance (direct flight from Knoxville, TN to Tahlequah, OK) is 617.79 mi.
745 mi = 1,199.17 kms