AM 646 then AA 3176 at LAX
Mexico City → Los Angeles → San Francisco
Timetable, Los Angeles time
09:45AM 646 from Mexico City at the gate
22:04AA 3176 to San Francisco leaves the gate
12 h 19 apart on the timetable
AA 3176 leaves 12 h 19 after AM 646 arrives on the timetable: more than half a day, so not a connection we count.