NC 509 then JQ 821 at Brisbane
Cairns → Brisbane → Sydney Kingsford Smith
Timetable, Brisbane time
16:00NC 509 from Cairns at the gate
19:30JQ 821 to Sydney Kingsford Smith leaves the gate
3 h 30 apart on the timetable
Brisbane’s board shows about 66% of departures at their timetable time, so delays of a few minutes don’t show here.
The last days
NC 509 and JQ 821 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.