DL 823 then UA 574 at San Francisco
Atlanta → San Francisco → Phoenix
Timetable, San Francisco time
17:16DL 823 from Atlanta at the gatealso AF 2495, AM 3256, LA 6318
16:27UA 574 to Phoenix leaves the gatealso AZ 4502
23 h 11 apart on the timetable, overnight
UA 574 leaves 23 h 11 after DL 823 arrives on the timetable: more than half a day, so not a connection we count.