DL 5614 then DL 571 at Boston
Milwaukee → Boston → San Diego
Timetable, Boston time
17:53DL 5614 from Milwaukee at the gate
17:10DL 571 to San Diego leaves the gate
23 h 17 apart on the timetable, overnight
DL 571 leaves 23 h 17 after DL 5614 arrives on the timetable: more than half a day, so not a connection we count.