There are
2,037 mi
from San Marcos, CA to Bloomingdale, IL
That's the driving distance. It would take 1 day 11 hours to go from San Marcos, California to Bloomingdale, Illinois.
The flight distance (direct flight from San Marcos, CA to Bloomingdale, IL) is 1,695.53 mi.
2,037 mi = 3.22 kms