Miles between Knoxville, TN and Johnston, IA

There are
835 mi
from Knoxville, TN to Johnston, IA

That's the driving distance. It would take 15 hours 13 mins to go from Knoxville, Tennessee to Johnston, Iowa.

The flight distance (direct flight from Knoxville, TN to Johnston, IA) is 657.46 mi.

835 mi = 1,343.09 kms