JQ 471 then QF 636 at Melbourne
Williamtown → Melbourne → Brisbane
Timetable, Melbourne time
10:25JQ 471 from Williamtown at the gate
20:20QF 636 to Brisbane leaves the gate
9 h 55 apart on the timetable
The last days
JQ 471 and QF 636 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.