B6 687 then AA 3176 at LAX
Boston → Los Angeles → San Francisco
Timetable, Los Angeles time
09:27B6 687 from Boston at the gate
22:04AA 3176 to San Francisco leaves the gate
12 h 37 apart on the timetable
AA 3176 leaves 12 h 37 after B6 687 arrives on the timetable: more than half a day, so not a connection we count.