QF 940 then QF 4587 at Brisbane
Perth → Brisbane → Sydney Kingsford Smith
Timetable, Brisbane time
23:35QF 940 from Perth at the gate
09:30QF 4587 to Sydney Kingsford Smith leaves the gate
9 h 55 apart on the timetable, overnight
Brisbane’s board shows about 66% of departures at their timetable time, so delays of a few minutes don’t show here.
The last days
QF 940 and QF 4587 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.