There are
992 mi
from Hereford, TX to Rantoul, IL
That's the driving distance. It would take 17 hours 37 mins to go from Hereford, Texas to Rantoul, Illinois.
The flight distance (direct flight from Hereford, TX to Rantoul, IL) is 866.06 mi.
992 mi = 1,596.32 kms