AA 2407 then JL 7553 at San Francisco
Philadelphia → San Francisco → Los Angeles
Timetable, San Francisco time
11:35AA 2407 from Philadelphia at the gate
07:00JL 7553 to Los Angeles leaves the gate
19 h 25 apart on the timetable, overnight
JL 7553 leaves 19 h 25 after AA 2407 arrives on the timetable: more than half a day, so not a connection we count.