Rare1 stop · 12h
SYD to HANVietnam
Hanoi
$484
usually $885
−45%
Most monthly lows $487–$885. Cheaper than every other month on record (3).
Flights · SYD → HKG
Sydney to Hong Kong
Best fare, round trip
$668
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sun 21 Mar
- Return
- Fri 26 Mar
- Stay
- 5 nights
- Flight
- 1 stop · 11.5h
- Airline
Vietjet
Cached fare — the booking search re-prices live before you pay.
Hong KongVertical, humid and relentless — and the cheapest place in Asia to catch a connecting fare somewhere else.Best windowOct–DecAirportsHong Kong (HKG)Every route into Hong KongFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes one stop and takes about 11.5 hours outbound, on a 5-night trip — ticketed under Vietjet, which on a connecting fare need not operate every leg. At $668 for 7,375 km each way, that works out to about $45 per 1,000 km flown. That is about the $44 per 1,000 km typical of long-haul fares here. Across the 12 departure cities we track at a similar distance from Hong Kong, this fare ranks 9th — 41% above the $474 from Dubai. For context, the middle fare among the 18 routes of similar length we watch out of Sydney is $536. We have 2 months of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage. Fare history here is still too short to name a cheap season. The best time to be in Hong Kong: Oct–Dec.
The 3 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 14% lower than when tracking began on 8 Aug — $800 then versus $685 now, across 18 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $455, on 9 Nov.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 15 Oct 2026
We are still collecting this route's months — 2 months of cached prices so far, too few to chart.
Route facts
- Airports
- Kingsford Smith (SYD) ↔ Hong Kong (HKG)
- Flight time
- ≈11.5 hours outbound
- Distance
- ≈7,375 km each way
- Airlines on the board
- Vietjet
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Dec
Good to know
SYD → HKG, answered.
How far in advance should I book SYD → Hong Kong?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Sydney to Hong Kong?
The current cheapest fares involve a connection, ticketed under Vietjet. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Hong Kong?
Lock the flight first — then compare stays for 21–26 Mar '27 · 5 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SYD → HKG drop reaches you as soon as we find it.
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