QF 1257 then QF 1474 at Melbourne
Brisbane → Melbourne → Canberra
Timetable, Melbourne time
13:50QF 1257 from Brisbane at the gate
18:35QF 1474 to Canberra leaves the gate
4 h 45 apart on the timetable
The last days
QF 1257 and QF 1474 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.