There are
360 mi
from St Clair Shores, MI to Sycamore, IL
That's the driving distance. It would take 6 hours 52 mins to go from St Clair Shores, Michigan to Sycamore, Illinois.
The flight distance (direct flight from St Clair Shores, MI to Sycamore, IL) is 298.44 mi.
360 mi = 578.91 kms