Sydney (SYD) to Cairns (CNS): 1,226 miles (1,974 km) great-circle, about 2h 55m nonstop by our estimate. Cheapest fare observed: $276 round-trip on Qantas, nonstop, departing June 4, 2026.
$276 round-trip, Qantas QF922, departing 2026-06-04 at 09:45, returning 2026-06-10. The recorded itinerary left on a Thursday, returning on a Wednesday 6 nights later; the fare was observed 40 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $276, it ranked 4th of the 30 round-trip fares we recorded from SYD (median $777). That is 22.5 cents per great-circle mile (round-trip price over one-way distance), above the SYD median of 15.3 cents across 30 round-trip routes.
Routes from SYD of similar length: Auckland (1,342 mi) at $372 and Nadi (1,969 mi) at $466.
SYD to CNS is the only one of 30 SYD routes where Qantas priced cheapest. It is the 27th longest of the 30 routes we track from SYD.
Of 3 departure airports with a fare to Cairns, Sydney (SYD) ranked 2nd at $276. Lowest: $206 from Brisbane (BNE); highest: $538 from Perth (PER); 2 nonstop. Cheapest-fare airlines (routes): Jetstar (1), Qantas (1) and Virgin Australia (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Australia/Sydney, Australia/Brisbane; flight time is our estimate.