DL 556 then AA 255 at JFK
Santa Ana → New York → Los Angeles
Timetable, New York time
20:57DL 556 from Santa Ana at the gate
12:30AA 255 to Los Angeles leaves the gate
15 h 33 apart on the timetable, overnight
AA 255 leaves 15 h 33 after DL 556 arrives on the timetable: more than half a day, so not a connection we count.