DL 514 then AA 798 at Phoenix
Boston → Phoenix → San Diego
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
13:26AA 798 to San Diego leaves the gate
15 h 33 apart on the timetable, overnight
AA 798 leaves 15 h 33 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.