Miles between Centennial, CO and Johnston, IA

There are
685 mi
from Centennial, CO to Johnston, IA

That's the driving distance. It would take 11 hours 53 mins to go from Centennial, Colorado to Johnston, Iowa.

The flight distance (direct flight from Centennial, CO to Johnston, IA) is 602.88 mi.

685 mi = 1,102.25 kms