DL 5731 then DL 508 at Boston
Pittsburgh → Boston → Los Angeles
Timetable, Boston time
18:44DL 5731 from Pittsburgh at the gate
17:15DL 508 to Los Angeles leaves the gate
22 h 31 apart on the timetable, overnight
DL 508 leaves 22 h 31 after DL 5731 arrives on the timetable: more than half a day, so not a connection we count.