Cheap flights from Sydney to Seoul from $629 SYD, WSI → GMP, ICN
Sydney (Kingsford Smith) Airport (SYD), Western Sydney Airport (WSI) → Gimpo International Airport (GMP), Incheon International Airport (ICN)
The cheapest return found recently is $629 with T'way Air, 17 Nov – 20 Nov, found 2 days ago.
- Cheapest return found recently
- $629, 17 Nov to 20 Nov
- Usual return price
- $624 to $1,046
- Cheapest month to fly
- March 2027, return fares from $528 found in the last 7 days
- Airlines with nonstop flights
- Asiana Airlines, Jetstar, Korean Air, T'way Air
Return
The cheapest return fare on each of 8 departure dates is usually $624 to $1,046.
Cheapest return found recently
$629
17 Nov – 20 Nov · T'way Air
Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)
Leaves 12:15 p.m. · Return leaves 9:40 p.m. · 21 h 35 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$629
17 Nov – 20 Nov · T'way Air
Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN)
Leaves 12:15 p.m. · Return leaves 9:40 p.m. · 21 h 35 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$629 17 Nov – 20 Novfound 2 days agoSee prices for these dates
$528 10 Mar 2027 – 31 Mar 2027found 4 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $468 to $589.
At $629, the cheapest return found recently is above that range.
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 8 departure dates from 17 Nov to 17 Mar 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 3-night return fares leaving within 3 days of 17 Nov to compare.
Every date we hold
92 fares on 8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 17 Nov – 20 Nov | $629 | T'way Air | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 23 Nov – 23 Nov | $1,045 | T'way Air | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out nonstop, back 2 stops | found yesterday | See prices for these dates |
| 1 Jan 2027 – 23 Jan 2027 | $995 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 2 Jan 2027 – 23 Jan 2027 | $1,306 | Xiamen Airlines | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 3 Jan 2027 – 23 Jan 2027 | $1,050 | China Eastern | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 10 Mar 2027 – 31 Mar 2027 | $528 | Shenzhen Airlines | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out 1 stop, back nonstop | found 4 days ago | See prices for these dates |
| 11 Mar 2027 – 17 Apr 2027 | $608 | Jetstar | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 17 Mar 2027 – 30 Mar 2027 | $687 | Shenzhen Airlines | Sydney (Kingsford Smith) Airport (SYD) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
March 2027 is the cheapest month — from $528.
Airlines on the cheapest dates: T'way Air, China Eastern, Shenzhen Airlines, Xiamen Airlines, Jetstar.
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 17 Nov – 20 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Sydney to Seoul?
Return
Fares 14 to 29 days before departure were typically 27% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $675 | $486 | +36% | 28 |
| 7–13 days | $557 | $488 | +12% | 25 |
| 14–29 days | $496 | $476 | Cheapest seen | 24 |
| 30–59 days | $510 | $468 | +3% | 47 |
| 60–89 days | $1,001 | $844 | +102% | 38 |
| 90–179 days | $589 | $509 | +19% | 49 |
| 180+ days | $582 | $574 | +17% | 29 |
Live price for these dates
The cheapest return found recently is for 17 Nov – 20 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Sydney to Seoul?
The cheapest return found recently is $629 with T'way Air, 17 Nov to 20 Nov, found 2 days ago. The cheapest return we hold, of any age, is $528 with Shenzhen Airlines, 10 Mar 2027 to 31 Mar 2027, found 4 days ago. The cheapest return fare on each of 8 departure dates is usually $624 to $1,046.
What is the cheapest month to fly from Sydney to Seoul?
March 2027 is the cheapest month for a return, from $528, 10 Mar 2027 to 31 Mar 2027, found 4 days ago.
How far ahead should I book a flight from Sydney to Seoul?
In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 27% lower than 0 to 6 days before departure.
Is there a direct flight from Sydney to Seoul?
Yes, the cheapest nonstop return found recently is $629 with T'way Air, 17 Nov to 20 Nov, found 2 days ago.
Which airlines have the cheapest flights from Sydney to Seoul?
Between 17 Nov and 17 Mar 2027, T'way Air has the cheapest return on 2 of the 8 departure dates we hold, China Eastern on 2 and Shenzhen Airlines on 2.
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