According to
https://www.routesonline.com/news/38...e-in-oct-2018/
Lufthansa in last week’s schedule update removed Frankfurt – San Jose CA schedule, with reservation closed for travel on/after 28OCT18. The Star Alliance carrier previously planned 5 weekly Mainline A340-300 service on/after 28OCT18.
LH488 FRA1005 – 1300SJC 343 x15
LH489 SJC1440 – 1050+1FRA 343 x15
Service in summer 2019 season is also cancelled, based on the update.