QF 1902 then QF 1983 at Brisbane
Canberra → Brisbane → Adelaide
Timetable, Brisbane time
06:45QF 1902 from Canberra at the gate
11:00QF 1983 to Adelaide leaves the gate
4 h 15 apart on the timetable
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 1902 and QF 1983 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.