DL 1697 then B6 1633 at Boston
Phoenix → Boston → Houston
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
14:30B6 1633 to Houston leaves the gate
17 h 30 apart on the timetable, overnight
B6 1633 leaves 17 h 30 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.