DL 514 then AA 6344 at Phoenix
Boston → Phoenix → San Diego
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
14:39AA 6344 to San Diego leaves the gate
16 h 46 apart on the timetable, overnight
AA 6344 leaves 16 h 46 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.