UA 3875 then UA 2019 at San Francisco
IAB → San Francisco → Phoenix
Timetable, San Francisco time
01:46UA 3875 from IAB at the gate
18:55UA 2019 to Phoenix leaves the gatealso AC 4465, AZ 4503, LH 9366, NZ 9370
17 h 09 apart on the timetable
UA 2019 leaves 17 h 09 after UA 3875 arrives on the timetable: more than half a day, so not a connection we count.