VA 8311 then JL 7553 at San Francisco
Boston → San Francisco → Los Angeles
Timetable, San Francisco time
12:09VA 8311 from Boston at the gate
12:00JL 7553 to Los Angeles leaves the gate
23 h 51 apart on the timetable, overnight
JL 7553 leaves 23 h 51 after VA 8311 arrives on the timetable: more than half a day, so not a connection we count.