AA 1416 then DL 5679 at Boston
Philadelphia → Boston → Louisville
Timetable, Boston time
12:18AA 1416 from Philadelphia at the gate
09:55DL 5679 to Louisville leaves the gate
21 h 37 apart on the timetable, overnight
DL 5679 leaves 21 h 37 after AA 1416 arrives on the timetable: more than half a day, so not a connection we count.