DL 726 then DL 5679 at Boston
Atlanta → Boston → Louisville
Timetable, Boston time
16:24DL 726 from Atlanta at the gate
09:55DL 5679 to Louisville leaves the gate
17 h 31 apart on the timetable, overnight
DL 5679 leaves 17 h 31 after DL 726 arrives on the timetable: more than half a day, so not a connection we count.