Miles between Naperville, IL and South Portland, ME

There are
1,121 mi
from Naperville, IL to South Portland, ME

That's the driving distance. It would take 21 hours 17 mins to go from Naperville, Illinois to South Portland, Maine.

The flight distance (direct flight from Naperville, IL to South Portland, ME) is 916.21 mi.

1,121 mi = 1.61 kms