$359 Cheap Flights from Sydney (SYD) to Seoul (GMP)

View $359 flight on Thu, Oct 2, 2025Opens in a new window

Popular airlines from Sydney Airport (SYD) to Gimpo Intl. Airport (GMP)

Cheap Flights from Sydney to Seoul (SYD-GMP)

Prices were available within the past 7 days and start at $359 for one-way flights and $572 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Thu, Sep 4 - Sun, Sep 7
SYD
Sydney
GMP
Seoul
$572 Roundtrip, found 6 days ago
$572
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Thu, Sep 4 from Sydney to Seoul, returning Sun, Sep 7, priced at $572 found 6 days ago
Air China
Tue, Nov 18 - Sat, Dec 6
SYD
Sydney
GMP
Seoul
$645 Roundtrip, found 15 hours ago
$645
Roundtrip
found 15 hours ago
Select Air China flight, departing Tue, Nov 18 from Sydney to Seoul, returning Sat, Dec 6, priced at $645 found 15 hours ago
China Eastern Airlines
Tue, Sep 2 - Sun, Sep 7
SYD
Sydney
GMP
Seoul
$654 Roundtrip, found 6 days ago
$654
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Tue, Sep 2 from Sydney to Seoul, returning Sun, Sep 7, priced at $654 found 6 days ago
Air China
Sun, Nov 9 - Mon, Nov 17
SYD
Sydney
GMP
Seoul
$682 Roundtrip, found 4 days ago
$682
Roundtrip
found 4 days ago
Select Air China flight, departing Sun, Nov 9 from Sydney to Seoul, returning Mon, Nov 17, priced at $682 found 4 days ago
Qantas Airways
Wed, Oct 15 - Sat, Nov 15
SYD
Sydney
GMP
Seoul
$714 Roundtrip, found 6 days ago
$714
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Wed, Oct 15 from Sydney to Seoul, returning Sat, Nov 15, priced at $714 found 6 days ago
Air China
Sat, Oct 25 - Mon, Nov 3
SYD
Sydney
GMP
Seoul
$716 Roundtrip, found 2 days ago
$716
Roundtrip
found 2 days ago
Select Air China flight, departing Sat, Oct 25 from Sydney to Seoul, returning Mon, Nov 3, priced at $716 found 2 days ago
Air China
Sun, Oct 26 - Sat, Nov 1
SYD
Sydney
GMP
Seoul
$717 Roundtrip, found 3 days ago
$717
Roundtrip
found 3 days ago
Select Air China flight, departing Sun, Oct 26 from Sydney to Seoul, returning Sat, Nov 1, priced at $717 found 3 days ago
China Southern Airlines
Sun, May 17 - Thu, May 21
SYD
Sydney
GMP
Seoul
$729 Roundtrip, found 6 days ago
$729
Roundtrip
found 6 days ago
Select China Southern Airlines flight, departing Sun, May 17 from Sydney to Seoul, returning Thu, May 21, priced at $729 found 6 days ago
Air China
Thu, Oct 2 - Wed, Oct 15
SYD
Sydney
GMP
Seoul
$748 Roundtrip, found 2 days ago
$748
Roundtrip
found 2 days ago
Select Air China flight, departing Thu, Oct 2 from Sydney to Seoul, returning Wed, Oct 15, priced at $748 found 2 days ago
Vietnam Airlines
Sun, May 17 - Thu, May 21
SYD
Sydney
GMP
Seoul
$772 Roundtrip, found 6 days ago
$772
Roundtrip
found 6 days ago
Select Vietnam Airlines flight, departing Sun, May 17 from Sydney to Seoul, returning Thu, May 21, priced at $772 found 6 days ago

Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Incheon Intl. ICN. Cheapest option available. Average driving time to city center is 47 minutes. Flights from $520
ICN
Incheon Intl.
Cheapest
Average driving time to city center47 min
Flights from $520
Flights from Sydney (SYD) to Seoul (GMP)
Origin airport
Kingsford Smith Intl.
Destination airport
Gimpo Intl.
Airlines serving
Air China, All Nippon Airways, Japan Airlines
Roundtrip price
$572
Distance
5181 mi

Sydney to Seoul Flights

The cheapest times to fly from Sydney to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sydney to Seoul are during the month of September. You can find some of the cheapest flights from Sydney to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sydney to Seoul

Sunday is one of the best days to book for cheap flights from Sydney to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sydney to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sydney to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $359 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sydney to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sydney to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP) cost?
Grab a cheap one-way flight from $359 or cheap return flight from $572 from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP)?
Flying in September may help you find better deals, as it's the cheapest month for flights between SYD and GMP. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from SYD to GMP. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP)?
There are no daily nonstop flights available from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from SYD to GMP?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP)?
To touch down at Gimpo Intl. Airport (GMP) on time, book a flight that leaves Kingsford Smith Intl. Airport (SYD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seoul from Kingsford Smith Intl. Airport (SYD)?
If you're flying on a direct flight from Kingsford Smith Intl. Airport (SYD) to Seoul, Incheon Intl. Airport (ICN) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP) last-minute?
Last-minute bookings from SYD to GMP are usually more expensive. To secure the best rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel plans, you may find a cheap ticket right before you leave.
Is it cheaper to book a SYD to GMP flight and hotel package?
Securing a SYD to GMP flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our extensive range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kingsford Smith Intl. Airport (SYD) to Gimpo Intl. Airport (GMP)?
You can usually reschedule or cancel your SYD to GMP flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.