There are
2,146 mi
from Carol Stream, IL to Cupertino, CA
That's the driving distance. It would take 1 day 13 hours to go from Carol Stream, Illinois to Cupertino, California.
The flight distance (direct flight from Carol Stream, IL to Cupertino, CA) is 1,819.59 mi.
2,146 mi = 3,453.76 kms