There are
1,987 mi
from Schaumburg, IL to Placentia, CA
That's the driving distance. It would take 1 day 11 hours to go from Schaumburg, Illinois to Placentia, California.
The flight distance (direct flight from Schaumburg, IL to Placentia, CA) is 1,707.67 mi.
1,987 mi = 3,197.65 kms