DL 5819 then DL 508 at Boston
New York LaGuardia → Boston → Los Angeles
Timetable, Boston time
17:25DL 5819 from New York LaGuardia 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 DL 5819 arrives on the timetable: more than half a day, so not a connection we count.