Cheap Flights from Perth to Cairns
Round-trip economy fares between Perth (PER) and Cairns (CNS) average A$449 across the year. Book for March and typical prices fall to A$395. The 3,432 km hop takes about 4.6 hours non-stop, and the nicest window to visit Cairns is June – September (dry season, best Reef visibility).
Today's tracked low
A$367 −7% vs. seasonal low
Not flying from Perth? See Cairns deals from your nearest hub.
When is the cheapest time to fly from Perth to Cairns?
Average round-trip economy fare by departure month. March is the statistical sweet spot at A$395.
| Month | Avg. round-trip | vs. yearly average |
|---|---|---|
| January | A$422 | −A$27 |
| February | A$404 | −A$45 |
| March Cheapest | A$395 | −A$54 |
| April | A$431 | −A$18 |
| May | A$467 | +A$18 |
| June | A$521 | +A$72 |
| July | A$548 | +A$99 |
| August | A$530 | +A$81 |
| September | A$494 | +A$45 |
| October | A$467 | +A$18 |
| November | A$413 | −A$36 |
| December | A$440 | −A$9 |
Travel Readiness & Connectivity — Australia
ETA / eVisitor authorisation required before boarding.
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Perth to Cairns flight FAQs
- What is the cheapest month to fly from Perth to Cairns?
- March is typically cheapest, with round-trips from A$395 — about A$54 under the yearly average of A$449.
- How long is the flight from Perth to Cairns?
- Non-stop services cover the 3,432 km route in roughly 4.6 hours.
- When is the best time to visit Cairns?
- June – September (dry season, best Reef visibility). Entry requirements: ETA / eVisitor authorisation required before boarding.