QF 3773 then AS 7291 at San Francisco
Los Angeles → San Francisco → Hong Kong
Timetable, San Francisco time
15:48QF 3773 from Los Angeles at the gate
11:25AS 7291 to Hong Kong leaves the gate
19 h 37 apart on the timetable, overnight
AS 7291 leaves 19 h 37 after QF 3773 arrives on the timetable: more than half a day, so not a connection we count.