B6 374 then DL 5679 at Boston
Syracuse → Boston → Louisville
Timetable, Boston time
10:17B6 374 from Syracuse at the gate
09:55DL 5679 to Louisville leaves the gate
23 h 38 apart on the timetable, overnight
DL 5679 leaves 23 h 38 after B6 374 arrives on the timetable: more than half a day, so not a connection we count.