DL 514 then AA 1950 at Phoenix
Boston → Phoenix → San Diego
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
15:21AA 1950 to San Diego leaves the gate
17 h 28 apart on the timetable, overnight
AA 1950 leaves 17 h 28 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.