There are
690 mi
from Rockford, IL to Tahlequah, OK
That's the driving distance. It would take 12 hours 49 mins to go from Rockford, Illinois to Tahlequah, Oklahoma.
The flight distance (direct flight from Rockford, IL to Tahlequah, OK) is 540.18 mi.
690 mi = 1,110.57 kms