
SYD to HANVietnam
Hanoi
$484
usually $885
−45%
Most monthly lows $487–$885. Cheaper than every other month on record (3).
Display prices in
Flights · SYD → SIN
Best fare, round trip
$376
−21%
below its usual $475
you keep $99
Most of this route’s monthly lows fall between $432 and $507. The drop beats 58% of measured fares on the board, over 8 observed months.
Cached fare — the booking search re-prices live before you pay.
SingaporeA city that treats an airport as a national monument — and prices its stopover fares to tempt you.Best windowFeb–AprAirportsChangi (SIN)Every route into SingaporeFare seasonality
Fares bottom out in April around $376 and peak in December near $975, 159% dearer, across the 8 months we track. The cheapest itinerary we are tracking flies Scoot nonstop and takes about 8.5 hours outbound, on a 30-night trip. At $376 for 6,306 km each way, that works out to about $30 per 1,000 km flown. That is well under the $44 per 1,000 km that long-haul fares on this board typically run. Across the 4 departure cities we track at a similar distance from Singapore, this fare ranks 2nd — 3% above the $364 from Dubai. It is also the 2nd cheapest of the 13 routes of similar length we watch out of Sydney. The best time to be in Singapore: Feb–Apr.
The 6 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 72% higher than when tracking began on 8 Aug — $492 then versus $845 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 $376, on 26 Apr '27.
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.
Cheapest in Apr, around $376
21% below the $475 typical fare
Cheapest round-trip fare found each month, Sydney to Singapore, from cached prices.
Route facts
Good to know
Yes — the seasonal median for this route is around $475 round-trip. At $376 you're 21% below that, which we rate good for this route.
Across 8 months of cached-fare history, Apr comes out cheapest on this route. The best months to actually be in Singapore are Feb–Apr — when those overlap, that's your window.
We do not publish a number for this, because we cannot measure it yet.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. What we can measure is which month is cheap: across 8 months of cached fares, Apr comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Yes — the current board includes nonstop fares (Scoot). The outbound leg runs around 8.5 hours.
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 Singapore?
Lock the flight first — then compare stays for 26 Apr '27 – 26 May '27 · 30 nights.
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Cached fares expire. This route has a feed of its own — follow it and the next SYD → SIN drop reaches you as soon as we find it.
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