Miles between Nampa, ID and Alton, IL

There are
1,646 mi
from Nampa, ID to Alton, IL

That's the driving distance. It would take 1 day 4 hours to go from Nampa, Idaho to Alton, Illinois.

The flight distance (direct flight from Nampa, ID to Alton, IL) is 1,401.77 mi.

1,646 mi = 1.61 kms