Miles between Naperville, IL and Johnston, IA

There are
307 mi
from Naperville, IL to Johnston, IA

That's the driving distance. It would take 5 hours 41 mins to go from Naperville, Illinois to Johnston, Iowa.

The flight distance (direct flight from Naperville, IL to Johnston, IA) is 286.68 mi.

307 mi = 494.31 kms