Miles between St Joseph, MO and Decatur, IL

There are
331 mi
from St Joseph, MO to Decatur, IL

That's the driving distance. It would take 6 hours 17 mins to go from St Joseph, Missouri to Decatur, Illinois.

The flight distance (direct flight from St Joseph, MO to Decatur, IL) is 312.22 mi.

331 mi = 532.05 kms