DL 5819 then DL 5679 at Boston
New York LaGuardia → Boston → Louisville
Timetable, Boston time
17:25DL 5819 from New York LaGuardia at the gate
09:55DL 5679 to Louisville leaves the gate
16 h 30 apart on the timetable, overnight
DL 5679 leaves 16 h 30 after DL 5819 arrives on the timetable: more than half a day, so not a connection we count.