There are
1,165 mi
from Boynton Beach, FL to Cahokia, IL
That's the driving distance. It would take 21 hours 20 mins to go from Boynton Beach, Florida to Cahokia, Illinois.
The flight distance (direct flight from Boynton Beach, FL to Cahokia, IL) is 1,018.44 mi.
1,165 mi = 1.61 kms