JQ 917 then JQ 508 at Melbourne
Townsville → Melbourne → Sydney Kingsford Smith
Timetable, Melbourne time
23:20JQ 917 from Townsville at the gate
08:45JQ 508 to Sydney Kingsford Smith leaves the gate
9 h 25 apart on the timetable, overnight
The last days
JQ 917 and JQ 508 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.