Miles between Boise, ID and Alton, IL

There are
1,630 mi
from Boise, ID to Alton, IL

That's the driving distance. It would take 1 day 3 hours to go from Boise, Idaho to Alton, Illinois.

The flight distance (direct flight from Boise, ID to Alton, IL) is 1,385.94 mi.

1,630 mi = 1.61 kms