DL 1697 then DL 5615 at Boston
Phoenix → Boston → Louisville
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
12:15DL 5615 to Louisville leaves the gate
15 h 15 apart on the timetable, overnight
DL 5615 leaves 15 h 15 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.