There are
1,845 mi
from Huntington Beach, CA to Cahokia, IL
That's the driving distance. It would take 1 day 8 hours to go from Huntington Beach, California to Cahokia, Illinois.
The flight distance (direct flight from Huntington Beach, CA to Cahokia, IL) is 1,582.36 mi.
1,845 mi = 1.61 kms