DL 1580 then DL 5679 at Boston
Orlando → Boston → Louisville
Timetable, Boston time
14:40DL 1580 from Orlando at the gate
09:55DL 5679 to Louisville leaves the gate
19 h 15 apart on the timetable, overnight
DL 5679 leaves 19 h 15 after DL 1580 arrives on the timetable: more than half a day, so not a connection we count.