DL 5550 then DL 5679 at Boston
Tallahassee → Boston → Louisville
Timetable, Boston time
15:59DL 5550 from Tallahassee at the gate
09:55DL 5679 to Louisville leaves the gate
17 h 56 apart on the timetable, overnight
DL 5679 leaves 17 h 56 after DL 5550 arrives on the timetable: more than half a day, so not a connection we count.