QF 190 then JQ 539 at Sydney
Nuku'alofa → Sydney → Melbourne
Timetable, Sydney time
20:15QF 190 from Nuku'alofa at the gate
21:55JQ 539 to Melbourne leaves the gate
1 h 40 apart on the timetable
Sydney’s board shows about 68% of departures at their timetable time, so delays of a few minutes don’t show here.
The last days
QF 190 and JQ 539 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.