QF 92 then QF 745 at Sydney
Noumea → Sydney → Adelaide
Timetable, Sydney time
16:05QF 92 from Noumea at the gate
18:45QF 745 to Adelaide leaves the gate
2 h 40 apart on the timetable
Sydney’s board shows about 68% of departures at their timetable time, so delays of a few minutes don’t show here.
The last days
QF 92 and QF 745 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.