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 → SEL
Sydney to Seoul
Best fare, round trip
$476
−27%
below its usual $650
you keep $174
GoodFound
- Depart
- Tue 17 Nov
- Return
- Thu 10 Dec
- Stay
- 23 nights
- Flight
- Nonstop · 10.5h
- Airline
Jetstar
Most of this route’s monthly lows fall between $509 and $751. The drop beats 72% of measured fares on the board, over 6 observed months.
Cached fare — the booking search re-prices live before you pay.
South KoreaSeoulPalaces wedged between skyscrapers, barbecue smoke at midnight, cafés that outnumber people.Best windowApr–May · Sep–OctAirportsIncheon (ICN) · Gimpo (GMP)Every route into SeoulFare seasonality
When this route gets cheap.
Fares bottom out in November around $476 and peak in January near $844, 77% dearer, across the 6 months we track. The cheapest itinerary we are tracking flies Jetstar nonstop and takes about 10.5 hours outbound, on a 23-night trip. At $476 for 8,329 km each way, that works out to about $29 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 24 departure cities we track at a similar distance from Seoul, this fare ranks 4th — 4% above the $458 from Istanbul. That puts it in the cheaper half of the 19 routes of similar length we watch out of Sydney, where the middle fare is $536. The best time to be in Seoul: Apr–May · Sep–Oct.
The 6 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 21% lower than when tracking began on 8 Aug — $660 then versus $521 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 $409, on 20 Oct.
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 13 Oct 2026
Cheapest in Nov, around $476
27% below the $650 typical fare
$496Oct, below the usual price. Compare October fares.$476Nov, the cheapest month. Compare November fares.$751Dec, above the usual price. Compare December fares.$844Jan ’27, above the usual price. Compare January fares.$543Mar, below the usual price. Compare March fares.$651Apr, around the usual price. Compare April fares.
CheapestBelow usualUsualAbove usualPress a month to compare its fares
Cheapest round-trip fare found each month, Sydney to Seoul, from cached prices.
Route facts
- Airports
- Kingsford Smith (SYD) ↔ Incheon (ICN) · Gimpo (GMP)
- Flight time
- ≈10.5 hours outbound
- Distance
- ≈8,329 km each way
- Typical price
- $650 round-trip (seasonal median)
- Airlines on the board
- Jetstar
- Itineraries
- Nonstop available
- Best months to visit
- Apr–May · Sep–Oct
Good to know
SYD → SEL, answered.
Is $476 a good price for Sydney to Seoul?
Yes — the seasonal median for this route is around $650 round-trip. At $476 you're 27% below that, which we rate good for this route.
What is the cheapest month to fly from Sydney to Seoul?
Across 6 months of cached-fare history, Nov comes out cheapest on this route. The best months to actually be in Seoul are Apr–May · Sep–Oct — when those overlap, that's your window.
How far in advance should I book SYD → Seoul?
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 6 months of cached fares, Nov comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
Are there nonstop flights from Sydney to Seoul?
Yes — the current board includes nonstop fares (Jetstar). The outbound leg runs around 10.5 hours.
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 Seoul?
Lock the flight first — then compare stays for 17 Nov – 10 Dec · 23 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SYD → SEL drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
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