Miles between St Louis, MO and Decatur, IL

There are
119 mi
from St Louis, MO to Decatur, IL

That's the driving distance. It would take 2 hours 30 mins to go from St Louis, Missouri to Decatur, Illinois.

The flight distance (direct flight from St Louis, MO to Decatur, IL) is 107.07 mi.

119 mi = 190.79 kms