JQ 577 then QF 6004 at Melbourne
Brisbane → Melbourne → Sydney Kingsford Smith
Timetable, Melbourne time
00:10JQ 577 from Brisbane at the gate
06:25QF 6004 to Sydney Kingsford Smith leaves the gate
6 h 15 apart on the timetable
The last days
JQ 577 and QF 6004 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.