Miles between Naperville, IL and Alton, IL

There are
264 mi
from Naperville, IL to Alton, IL

That's the driving distance. It would take 5 hours 6 mins to go from Naperville, Illinois to Alton, Illinois.

The flight distance (direct flight from Naperville, IL to Alton, IL) is 226.98 mi.

264 mi = 424.46 kms