B6 1860 then DL 508 at Boston
Philadelphia → Boston → Los Angeles
Timetable, Boston time
17:25B6 1860 from Philadelphia at the gate
16:15DL 508 to Los Angeles leaves the gate
22 h 50 apart on the timetable, overnight
DL 508 leaves 22 h 50 after B6 1860 arrives on the timetable: more than half a day, so not a connection we count.