B6 782 then DL 5679 at Boston
Richmond → Boston → Louisville
Timetable, Boston time
17:44B6 782 from Richmond at the gate
09:55DL 5679 to Louisville leaves the gate
16 h 11 apart on the timetable, overnight
DL 5679 leaves 16 h 11 after B6 782 arrives on the timetable: more than half a day, so not a connection we count.