B6 15 then QF 4864 at San Francisco
New York JFK → San Francisco → Phoenix
Timetable, San Francisco time
11:08B6 15 from New York JFK at the gatealso TP 4397
05:50QF 4864 to Phoenix leaves the gate
18 h 42 apart on the timetable, overnight
QF 4864 leaves 18 h 42 after B6 15 arrives on the timetable: more than half a day, so not a connection we count.