There are
1,826 mi
from Pasadena, CA to Cahokia, IL
That's the driving distance. It would take 1 day 7 hours to go from Pasadena, California to Cahokia, Illinois.
The flight distance (direct flight from Pasadena, CA to Cahokia, IL) is 1,578.80 mi.
1,826 mi = 1.61 kms