DL 5670 then DL 5679 at Boston
Charleston (South Carolina) → Boston → Louisville
Timetable, Boston time
13:55DL 5670 from Charleston (South Carolina) at the gate
09:55DL 5679 to Louisville leaves the gate
20 h apart on the timetable, overnight
DL 5679 leaves 20 h after DL 5670 arrives on the timetable: more than half a day, so not a connection we count.