There are
486 mi
from Chattanooga, TN to Knightdale, NC
That's the driving distance. It would take 9 hours 13 mins to go from Chattanooga, Tennessee to Knightdale, North Carolina.
The flight distance (direct flight from Chattanooga, TN to Knightdale, NC) is 387.86 mi.
486 mi = 782.90 kms