DL 1965 then DL 5679 at Boston
Miami → Boston → Louisville
Timetable, Boston time
14:33DL 1965 from Miami at the gate
09:55DL 5679 to Louisville leaves the gate
19 h 22 apart on the timetable, overnight
DL 5679 leaves 19 h 22 after DL 1965 arrives on the timetable: more than half a day, so not a connection we count.