AA 4456 then DL 5679 at Boston
Indianapolis → Boston → Louisville
Timetable, Boston time
10:18AA 4456 from Indianapolis at the gate
09:55DL 5679 to Louisville leaves the gate
23 h 37 apart on the timetable, overnight
DL 5679 leaves 23 h 37 after AA 4456 arrives on the timetable: more than half a day, so not a connection we count.