DL 5861 then DL 5679 at Boston
Columbus (Ohio) → Boston → Louisville
Timetable, Boston time
12:47DL 5861 from Columbus (Ohio) at the gate
09:55DL 5679 to Louisville leaves the gate
21 h 08 apart on the timetable, overnight
DL 5679 leaves 21 h 08 after DL 5861 arrives on the timetable: more than half a day, so not a connection we count.