There are
1,866 mi
from San Clemente, CA to Edwardsville, IL
That's the driving distance. It would take 1 day 8 hours to go from San Clemente, California to Edwardsville, Illinois.
The flight distance (direct flight from San Clemente, CA to Edwardsville, IL) is 1,581.34 mi.
1,866 mi = 3,003.48 kms