QF 509 then QF 586 at Sydney
Brisbane → Sydney → Gold Coast
Timetable, Sydney time
09:25QF 509 from Brisbane at the gate
12:00QF 586 to Gold Coast leaves the gate
2 h 35 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 509 and QF 586 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.