UA 2361 then AA 3176 at LAX
Chicago O'Hare → Los Angeles → San Francisco
Timetable, Los Angeles time
09:35UA 2361 from Chicago O'Hare at the gate
22:04AA 3176 to San Francisco leaves the gate
12 h 29 apart on the timetable
AA 3176 leaves 12 h 29 after UA 2361 arrives on the timetable: more than half a day, so not a connection we count.