AS 389 then DL 508 at Boston
San Diego → Boston → Los Angeles
Timetable, Boston time
17:07AS 389 from San Diego at the gate
16:15DL 508 to Los Angeles leaves the gate
23 h 08 apart on the timetable, overnight
DL 508 leaves 23 h 08 after AS 389 arrives on the timetable: more than half a day, so not a connection we count.