Miles between Clayton, MO and Freeport, IL

There are
327 mi
from Clayton, MO to Freeport, IL

That's the driving distance. It would take 6 hours 5 mins to go from Clayton, Missouri to Freeport, Illinois.

The flight distance (direct flight from Clayton, MO to Freeport, IL) is 255.16 mi.

327 mi = 526.87 kms