UA 648 then PD 6298 at San Francisco
Newark → San Francisco → Los Angeles
Timetable, San Francisco time
09:30UA 648 from Newark at the gatealso VA 8516, NZ 9121
07:00PD 6298 to Los Angeles leaves the gate
21 h 30 apart on the timetable, overnight
PD 6298 leaves 21 h 30 after UA 648 arrives on the timetable: more than half a day, so not a connection we count.