Miles between Clayton, MO and Niles, IL

There are
309 mi
from Clayton, MO to Niles, IL

That's the driving distance. It would take 5 hours 53 mins to go from Clayton, Missouri to Niles, Illinois.

The flight distance (direct flight from Clayton, MO to Niles, IL) is 268.39 mi.

309 mi = 496.58 kms