DL 1697 then UA 1183 at Boston
Phoenix → Boston → Houston
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
15:28UA 1183 to Houston leaves the gate
18 h 28 apart on the timetable, overnight
UA 1183 leaves 18 h 28 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.