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Sydney to Seoul SYD, WSI → ICN

Sydney (Kingsford Smith) Airport (SYD), Western Sydney Airport (WSI) → Incheon International Airport (ICN)

The cheapest return found recently is $490 with Jetstar, 29 Oct – 18 Nov, found 2 days ago. The cheapest one-way found recently is $352 with Jetstar, 13 May 2027, found yesterday.

Return

The cheapest return fare on each of 11 departure dates is usually $497 to $798.

Cheapest return found recently

$490

29 Oct – 18 Nov · Jetstar

Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)

Leaves 11:40 a.m. · Return leaves 9:50 p.m. · 20 h 50 min of travel, both ways together

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

Cheapest nonstop return

$490

29 Oct – 18 Nov · Jetstar

Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)

Leaves 11:40 a.m. · Return leaves 9:50 p.m. · 20 h 50 min of travel, both ways together

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $490 29 Oct – 18 Novfound 2 days agoSee prices for these dates

Cheapest we hold, of any age $476 17 Nov – 10 Decfound 6 days agoSee prices for these dates

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $468 to $504.

$490, the cheapest return found recently, sits here in that range of $468 to $504.

25 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good return price?

Compared with the cheapest return fare on each of 11 departure dates from 29 Oct to 11 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 20-night return fares leaving within 3 days of 29 Oct to compare.

Every date we hold

21 fares on 11 departure dates

29 Oct – 18 Nov: $490, found 2 days ago30 Oct – 18 Nov: $504, found 2 days ago4 Nov – 22 Nov: $488, found 3 days ago17 Nov – 10 Dec: $476, found 6 days ago24 Nov – 13 Dec: $577, found 6 days ago5 Dec – 12 Dec: $751, found 4 days ago2 Jan 2027 – 23 Jan 2027: $1,180, found 4 days ago6 Jan 2027 – 13 Jan 2027: $861, found 4 days ago10 Jan 2027 – 16 Jan 2027: $844, found 4 days ago7 Apr 2027 – 15 Apr 2027: $652, found 6 days ago11 Apr 2027 – 19 Apr 2027: $651, found 3 days agoOctNovDecJanApr
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
29 Oct – 18 Nov$490JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
30 Oct – 18 Nov$504JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
4 Nov – 22 Nov$488Xiamen AirlinesSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
17 Nov – 10 Dec$476JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
24 Nov – 13 Dec$577Hainan AirlinesSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out 1 stop, back nonstopfound 6 days agoSee prices for these dates
5 Dec – 12 Dec$751JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
2 Jan 2027 – 23 Jan 2027$1,180China EasternSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
6 Jan 2027 – 13 Jan 2027$861China EasternSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
10 Jan 2027 – 16 Jan 2027$844China EasternSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
7 Apr 2027 – 15 Apr 2027$652JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
11 Apr 2027 – 19 Apr 2027$651China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)out 1 stop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $476.

October 2026From $4902 departure dates29 Oct – 18 Nov · found 2 days agoSee prices for these dates
November 2026From $476Cheapest seen3 departure dates17 Nov – 10 Dec · found 6 days agoSee prices for these dates
December 2026From $7511 departure date5 Dec – 12 Dec · found 4 days agoSee prices for these dates
January 2027From $8443 departure dates10 Jan 2027 – 16 Jan 2027 · found 4 days agoSee prices for these dates
April 2027From $6512 departure dates11 Apr 2027 – 19 Apr 2027 · found 3 days agoSee prices for these dates

Airlines on the cheapest dates: Jetstar, China Eastern, Xiamen Airlines, Hainan Airlines, China Southern Airlines.

One-way

The cheapest one-way fare on each of 4 departure dates is usually $334 to $419.

Cheapest one-way found recently

$352

13 May 2027 · Jetstar

Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)

Leaves 3:10 p.m. · 39 h 50 min trip

2 stops

found yesterday

Open this tripCheck today's price

Cheapest nonstop one-way

None seen yet.

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Found recently, and the cheapest we hold

Cheapest found recently $352 13 May 2027found yesterdayOpen this trip

Cheapest we hold, of any age $279 5 Novfound 5 days agoOpen this trip

What have prices looked like?

Over 19 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $279 to $738.

$352, the cheapest one-way found recently, sits here in that range of $279 to $738.

19 days is a short history, so treat this range as an early guide.

Those were the prices on those days, not today's.

Is this a good one-way price?

Compared with the cheapest one-way fare on each of 4 departure dates from 5 Nov to 2 Jul 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 13 May 2027 to compare.

Every date we hold

6 fares on 4 departure dates

5 Nov: $279, found 5 days ago12 Apr 2027: $418, found 5 days ago13 May 2027: $352, found yesterday2 Jul 2027: $423, found 3 days agoNovAprMayJul
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
5 Nov$279JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)stops unknownfound 5 days agoOpen this trip
12 Apr 2027$418China Southern AirlinesSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)1 stopfound 5 days agoOpen this trip
13 May 2027$352JetstarSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)2 stopsfound yesterdayOpen this trip
2 Jul 2027$423ScootSydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)1 stopfound 3 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $279.

November 2026From $279Cheapest seen1 departure date5 Nov · found 5 days agoOpen this trip
April 2027From $4181 departure date12 Apr 2027 · found 5 days agoOpen this trip
May 2027From $3521 departure date13 May 2027 · found yesterdayOpen this trip
July 2027From $4231 departure date2 Jul 2027 · found 3 days agoOpen this trip

Airlines on the cheapest dates: Jetstar, China Southern Airlines, Scoot.

Premium cabin fares from Sydney to Seoul

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

Today's prices for 29 Oct – 18 Nov in another cabin: Premium economy · Business · First

Today's prices for 13 May 2027 in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Sydney to Seoul?

Return

Fares 30 to 59 days before departure were typically 31% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$694$675+46%17
7–13 days$685$490+44%14
14–29 days$496$486+4%19
30–59 days$476$468Cheapest seen25
60–89 days$946$844+99%20
90–179 days$543$535+14%25
180+ days$622$574+31%21

One-way

Not enough history yet: in 19 days of one-way prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.

Live price for these dates

The cheapest return found recently is for 29 Oct – 18 Nov. A live search on this page shows what those dates cost now, for one adult in economy.

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work