Miles between St Louis, MO and Prospect Heights, IL

There are
306 mi
from St Louis, MO to Prospect Heights, IL

That's the driving distance. It would take 5 hours 46 mins to go from St Louis, Missouri to Prospect Heights, Illinois.

The flight distance (direct flight from St Louis, MO to Prospect Heights, IL) is 267.56 mi.

306 mi = 492.20 kms