Miles between Boise, ID and Decatur, IL

There are
1,650 mi
from Boise, ID to Decatur, IL

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

The flight distance (direct flight from Boise, ID to Decatur, IL) is 1,424.13 mi.

1,650 mi = 1.61 kms