QF 1557 then QF 1272 at Melbourne
Canberra → Melbourne → Brisbane
Timetable, Melbourne time
15:20QF 1557 from Canberra at the gate
17:45QF 1272 to Brisbane leaves the gate
2 h 25 apart on the timetable
The last days
QF 1557 and QF 1272 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.