Melbourne to Brisbane Flights:
On-Time Performance & Reliability

Melbourne–Brisbane: Jetstar's worst result on the network — and QantasLink isn't far behind

Melbourne–Brisbane sits at 73.6% on-time in 2025 — 3.1 points below the national average, a 3.5% cancellation rate that spikes hard across both June and July, and a recovery from 62.9% in 2022 that has been steady but leaves this route among the weakest performers on the network. The aggregate undersells the airline story. At 80.3%, Qantas mainline is running a strong result. At 60.6%, Jetstar is posting the weakest on-time number of any carrier on any route in the dataset. The gap between them is 19.7 points on the same city pair. That is not a scheduling philosophy difference — it is a different product in every meaningful operational sense.

Why this route produces the network's worst Jetstar number

Melbourne–Brisbane is long, weather-exposed at both ends, and crosses the most disruption-prone airspace on the eastern seaboard. Melbourne's Southern Ocean fronts and Brisbane's convective afternoon weather create a compound risk that a schedule with no buffer cannot absorb. Jetstar's operating model — high utilisation, minimal rotation slack, no spare aircraft at either end — means that when a morning Melbourne departure slips due to fog or a late inbound, the disruption propagates through every subsequent sector on that aircraft for the rest of the day. Brisbane's afternoon thunderstorm season then catches the return rotation. The sector is long enough that a 30-minute delay on departure becomes a 45-minute delay on arrival, which becomes a late gate, which becomes a delayed next departure. There is no recovery point built into the schedule. QantasLink at 64.9% is only 4.3 points better — the second weakest result on this route — for broadly the same reasons: jet equipment on a long rotation with insufficient buffer, and no network depth at Brisbane to reprotect when the rotation collapses.

When to fly

February at 79.0% is the standout — the only month that approaches the national average on this route, and 17.7 points clear of November's 61.3%. The avoid list of November, July, and December maps directly onto the two weather regimes that define this route's risk profile: winter cancellations in June and July at the Melbourne end, and spring and summer convective delays in November and December at the Brisbane end. June's 12.6% and July's 10.0% cancellation rates mean that winter travel on MEL–BNE requires a flexible fare as a minimum. November is the worst on-time month but not primarily a cancellation risk — it is a delay accumulation story where afternoon Brisbane weather and peak end-of-year demand combine to push departure banks late across all carriers. March and April sit in a reliable corridor between the two problem seasons and are the best alternatives when February dates don't work.

Airline reality check

Qantas at 80.3% and Virgin at 78.7% are separated by just 1.6 points — effectively equivalent, and both delivering results comfortably above the route average. The choice between them on MEL–BNE comes down to fare and schedule, not reliability. Below that tier, the drop is sharp: QantasLink at 64.9% and Jetstar at 60.6% are both operating in a band that should be disqualifying for any time-critical travel. The 19.7-point gap between Qantas and Jetstar is the widest carrier spread in the dataset, and it sits on one of the longer and more weather-exposed routes on the network — exactly where schedule buffer matters most and Jetstar has least of it. For a leisure trip with genuine flexibility and no onward connection, Jetstar's price difference may be a rational trade. For anything else, this is the route where the cost of a disrupted Jetstar itinerary — a missed connection, an overnight, a same-carrier rebooking into the next available service hours later — is highest, and the probability of needing to absorb it is nearly four in ten on any given departure.