PER to ADL flight delays
3,342 flights · March 2025 – August 2026 · Australian Government BITRE
84.1%
Arrived on time
Within 15 minutes of schedule
0.48%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
—
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Qantas arrived on time 16 points more often than Jetstar over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The season swings this route hard. In June it ran 19.2 points more punctual than in May — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Flights from Perth to Adelaide keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
Which airline should you fly on this route?
Over March 2025 – August 2026, Qantas arrived on time most often on PER to ADL. Jetstar was late most often. Flights ran closest to schedule in August and worst in December.
Every airline on PER to ADL
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Qantas | 1,631 | 89.6% | 0.37% | — | A |
| Virgin Australia | 1,195 | 80.67% | 0.42% | — | B |
| Jetstar | 444 | 73.58% | 1.13% | — | C |
| Virgin Australia Regional Airlines | 72 | 80.56% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ADL to PER Adelaide back to Perth 80.17% on time BCommon questions
Are flights from Perth to Adelaide usually delayed?
84.1% of flights on the PER to ADL route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Perth to Adelaide?
Qantas, at 89.6% on time across 1,631 flights. The least punctual on the route was Jetstar at 73.58%.
How often are PER to ADL flights cancelled?
0.48% of scheduled flights did not operate — about 5 in every thousand. That is in the normal range.
What is the best month to fly Perth to Adelaide?
June, when 91.8% of flights arrived on time. The worst was May at 72.6%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on PER to ADL during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →