There are
2,004 mi
from Markham, IL to Pasadena, CA
That's the driving distance. It would take 1 day 11 hours to go from Markham, Illinois to Pasadena, California.
The flight distance (direct flight from Markham, IL to Pasadena, CA) is 1,728.36 mi.
2,004 mi = 3,224.72 kms