There are
1,011 mi
from Stamford, CT to Cahokia, IL
That's the driving distance. It would take 19 hours 4 mins to go from Stamford, Connecticut to Cahokia, Illinois.
The flight distance (direct flight from Stamford, CT to Cahokia, IL) is 898.78 mi.
1,011 mi = 1.61 kms