AA 9403 then DL 2112 at San Francisco
San Diego → San Francisco → New York JFK
Timetable, San Francisco time
08:52AA 9403 from San Diego at the gate
21:35DL 2112 to New York JFK leaves the gatealso AM 4443, VS 4856, KQ 7007
12 h 43 apart on the timetable
DL 2112 leaves 12 h 43 after AA 9403 arrives on the timetable: more than half a day, so not a connection we count.