DL 5703 then DL 860 at Boston
Baltimore → Boston → San Francisco
Timetable, Boston time
10:41DL 5703 from Baltimore at the gate
10:05DL 860 to San Francisco leaves the gate
23 h 24 apart on the timetable, overnight
DL 860 leaves 23 h 24 after DL 5703 arrives on the timetable: more than half a day, so not a connection we count.