LH 9221 then VS 20 at San Francisco
Sacramento → San Francisco → London
Timetable, San Francisco time
20:00LH 9221 from Sacramento at the gate
16:40VS 20 to London leaves the gatealso NZ 4162, KL 4813, SV 4830, DL 5964, AF 9650
20 h 40 apart on the timetable, overnight
VS 20 leaves 20 h 40 after LH 9221 arrives on the timetable: more than half a day, so not a connection we count.