DL 5731 then DL 5718 at Boston
Pittsburgh → Boston → Newark
Timetable, Boston time
18:44DL 5731 from Pittsburgh at the gate
17:45DL 5718 to Newark leaves the gate
23 h 01 apart on the timetable, overnight
DL 5718 leaves 23 h 01 after DL 5731 arrives on the timetable: more than half a day, so not a connection we count.