DL 5727 then DL 5679 at Boston
New York LaGuardia → Boston → Louisville
Timetable, Boston time
16:22DL 5727 from New York LaGuardia at the gate
09:55DL 5679 to Louisville leaves the gate
17 h 33 apart on the timetable, overnight
DL 5679 leaves 17 h 33 after DL 5727 arrives on the timetable: more than half a day, so not a connection we count.