There are
620 mi
from Chattanooga, TN to Van Buren, AR
That's the driving distance. It would take 11 hours 2 mins to go from Chattanooga, Tennessee to Van Buren, Arkansas.
The flight distance (direct flight from Chattanooga, TN to Van Buren, AR) is 510.59 mi.
620 mi = 997.18 kms