UA 283 then AA 3176 at LAX
Columbus (Ohio) → Los Angeles → San Francisco
Timetable, Los Angeles time
09:44UA 283 from Columbus (Ohio) at the gate
22:04AA 3176 to San Francisco leaves the gate
12 h 20 apart on the timetable
AA 3176 leaves 12 h 20 after UA 283 arrives on the timetable: more than half a day, so not a connection we count.