I see 2 saver biz seats ORD-CPT on 5/28 via ZRH on LX. I might book these and attempt to get a supervisor to add a saver economy SFO/LAX-ORD 5/27 within the free change window (no saver SFO-ORD available 5/28 currently). Then keep checking frequently for a better routing which may turn up later.