There are
2,059 mi
from Schaumburg, IL to La Mesa, CA
That's the driving distance. It would take 1 day 12 hours to go from Schaumburg, Illinois to La Mesa, California.
The flight distance (direct flight from Schaumburg, IL to La Mesa, CA) is 1,702.28 mi.
2,059 mi = 3,314.37 kms