DL 5680 then DL 58 at Boston
Pittsburgh → Boston → London
Timetable, Boston time
20:47DL 5680 from Pittsburgh at the gate
19:15DL 58 to London leaves the gate
22 h 28 apart on the timetable, overnight
DL 58 leaves 22 h 28 after DL 5680 arrives on the timetable: more than half a day, so not a connection we count.