DL 5739 then DL 5679 at Boston
New York LaGuardia → Boston → Louisville
Timetable, Boston time
15:15DL 5739 from New York LaGuardia at the gate
09:55DL 5679 to Louisville leaves the gate
18 h 40 apart on the timetable, overnight
DL 5679 leaves 18 h 40 after DL 5739 arrives on the timetable: more than half a day, so not a connection we count.