DL 1697 then DL 2816 at Boston
Phoenix → Boston → Chicago O'Hare
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
12:05DL 2816 to Chicago O'Hare leaves the gate
15 h 05 apart on the timetable, overnight
DL 2816 leaves 15 h 05 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.