DL 1697 then UA 1074 at Boston
Phoenix → Boston → San Francisco
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
09:45UA 1074 to San Francisco leaves the gate
12 h 45 apart on the timetable, overnight
UA 1074 leaves 12 h 45 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.