There are
484 mi
from Clarksville, TN to Davenport, IA
That's the driving distance. It would take 9 hours 16 mins to go from Clarksville, Tennessee to Davenport, Iowa.
The flight distance (direct flight from Clarksville, TN to Davenport, IA) is 385.78 mi.
484 mi = 778.20 kms