UA 571 then QF 4397 at San Francisco
Atlanta → San Francisco → Philadelphia
Timetable, San Francisco time
09:29UA 571 from Atlanta at the gatealso CA 7243, VA 8403, NZ 9005
22:58QF 4397 to Philadelphia leaves the gate
13 h 29 apart on the timetable
QF 4397 leaves 13 h 29 after UA 571 arrives on the timetable: more than half a day, so not a connection we count.