QF 1511 then QF 9 at Melbourne
Sydney Kingsford Smith → Melbourne → Perth
Timetable, Melbourne time
17:35QF 1511 from Sydney Kingsford Smith at the gate
16:05QF 9 to Perth leaves the gate
22 h 30 apart on the timetable, overnight
QF 9 leaves 22 h 30 after QF 1511 arrives on the timetable: more than half a day, so not a connection we count.