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$185+ Cheap flights from Incheon Intl (ICN) to Sydney (SYD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SYD
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to Sydney Kingsford Smith are usually found in March or June, booked 80 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Incheon Intl to Sydney

Cheapest flights from Incheon Intl to Sydney
Explore the most affordable flight options available from Incheon Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 22, 2026.

This Booking.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:15 pm
ICN
-
SYD
1 stop20h 10m
Multiple Airlines
Sun 6/79:45 am
SYD
-
ICN
1 stop22h 15m
Multiple Airlines
Deal found 3/22$379
This Booking.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1011:00 am
ICN
-
SYD
1 stop31h 20m
Multiple Airlines
Sun 5/179:45 am
SYD
-
ICN
1 stop22h 15m
Multiple Airlines
Deal found 3/17$388
This AirAsia deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:15 am
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sun 5/179:45 am
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 3/22$397
This AirAsia deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/215:55 pm
ICN
-
SYD
1 stop24h 40m
AirAsia X
Sat 4/259:45 am
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 3/21$398
This Booking.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:00 pm
ICN
-
SYD
2 stops19h 20m
Multiple Airlines
Sat 5/169:45 am
SYD
-
ICN
1 stop22h 15m
Multiple Airlines
Deal found 3/18$403
This Booking.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:00 pm
ICN
-
SYD
2 stops19h 20m
Multiple Airlines
Sun 5/179:45 am
SYD
-
ICN
1 stop22h 15m
Multiple Airlines
Deal found 3/19$404
This Trip.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:15 pm
ICN
-
SYD
1 stop34h 45m
Multiple Airlines
Fri 5/159:45 am
SYD
-
ICN
1 stop22h 15m
Multiple Airlines
Deal found 3/18$415
This Jetstar deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:50 pm
ICN
-
SYD
Nonstop10h 15m
Jetstar
Wed 10/2811:40 am
SYD
-
ICN
Nonstop10h 35m
Jetstar
Deal found 3/22$416
This Booking.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:15 am
ICN
-
SYD
1 stop23h 05m
Multiple Airlines
Sat 4/1810:00 am
SYD
-
ICN
2 stops29h 50m
Multiple Airlines
Deal found 3/18$419
This Trip.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1610:40 pm
ICN
-
SYD
1 stop33h 20m
Multiple Airlines
Mon 6/1511:00 am
SYD
-
ICN
1 stop35h 35m
Multiple Airlines
Deal found 3/17$422

Find flight deals from Incheon Intl to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(Booking.com)

One-way from

$193
(Jetstar)

Popular in

January

Cheapest in

March

Average price

$463

Good round-trip deal

$583 or less

Good one-way deal

$216 or less
Provider with most accurate pricing for Incheon Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Incheon Intl-Sydney Kingsford Smith flights.
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From Incheon Intl to Sydney Kingsford Smith
Search Deals
One-way flight from Incheon Intl to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($216 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Incheon Intl to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from Incheon Intl to Sydney Kingsford Smith.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sun 5/24

7:45 am-9:00 am

2 stops24h 15m

Sydney Kingsford Smith

Wed 5/27

10:05 am-1:15 pm

3 stops28h 10m

$487

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Wed 9/2

10:35 am-8:15 am

1 stop20h 40m

Sydney Kingsford Smith

Wed 9/9

10:15 am-4:25 pm

1 stop31h 10m

$560

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sat 8/15

8:15 am-8:20 am

1 stop23h 05m

Sydney Kingsford Smith

Sun 8/23

9:45 am-7:00 am

1 stop22h 15m

$587

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 4/7

6:25 pm-12:35 pm

1 stop17h 10m

Sydney Kingsford Smith

Tue 4/14

11:00 am-1:30 pm

1 stop27h 30m

$608

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Fri 7/10

8:15 am-8:20 am

1 stop23h 05m

Sydney Kingsford Smith

Wed 7/15

9:45 am-7:00 am

1 stop22h 15m

$609

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Mon 6/8

2:15 pm-8:00 am

3 stops40h 45m

Sydney Kingsford Smith

Thu 6/11

10:00 am-2:50 pm

2 stops29h 50m

$610

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Wed 5/6

3:55 pm-9:00 am

2 stops40h 05m

Sydney Kingsford Smith

Wed 5/20

11:00 am-3:35 pm

2 stops29h 35m

$623
Quickest round-trip

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sat 7/4

9:50 pm-9:05 am

Nonstop10h 15m

Sydney Kingsford Smith

Fri 7/10

10:45 am-8:15 pm

Nonstop10h 30m

$635

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sun 8/2

11:00 am-10:00 am

1 stop22h 00m

Sydney Kingsford Smith

Tue 8/11

1:05 pm-7:10 am

1 stop19h 05m

$650

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Mon 5/18

2:15 pm-8:00 am

3 stops40h 45m

Sydney Kingsford Smith

Fri 6/19

11:00 am-2:50 pm

2 stops28h 50m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Incheon Intl to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Incheon Intl to Sydney in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Incheon Intl Airport-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Incheon Intl Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Incheon Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Incheon Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Incheon Intl Airport to Sydney

How far ahead should I book a flight from Incheon Intl Airport to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Incheon Intl to Sydney. Price data was last updated on March 13, 2026.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Incheon Intl Airport to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Incheon Intl Airport to Sydney?

Currently, March is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $333). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of $541). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ICN to SYD?

Find hourly flight availability from Incheon Intl to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 22, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Incheon Intl Airport to Sydney as you normally would.

How much does it cost to fly round-trip from Incheon Intl Airport to Sydney?

The best insider tips for Incheon Intl Airport to Sydney flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Incheon Intl Airport to Sydney trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
John Walton

John Walton

Expert on SYD

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated March 22, 2026.
Read through reviews of airlines operating flights from Incheon Intl Airport to Sydney, such as Korean Air,Asiana Airlines, andJetstar. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,202 reviews

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,202 reviews
Korean Air
8.4
Very good
1,202 reviews

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.1
Very good
506 reviews
Korean Air
8.4
Very good
1,202 reviews

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Jetstar
6.5
Okay
533 reviews
Korean Air
8.4
Very good
1,202 reviews

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Incheon Intl?

    Sydney Kingsford Smith (SYD) is the airport you will fly into if you book a flight from Incheon Intl to Sydney. You should not have trouble finding flights to Kingsford Smith from Incheon Intl; the airport handles an average of 11 inbound flights from Incheon Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Sydney airport from Incheon Intl. It is only a 4.6 mi journey from Kingsford Smith (SYD) to Sydney’s city center.

  • How long is the flight from Incheon Intl Airport to Sydney?

    AirAsia X can get you from Incheon Intl Airport to Sydney in just under 23h 05m. Your travel time can differ by up to . There are 5179 mi between Incheon Intl Airport and Sydney.

  • What are the cheapest airlines flying from Incheon Intl Airport to Sydney round-trip?

    Cheapflights users have booked flights from Incheon Intl Airport to Sydney round-trip from $370. Other airlines that can offer you cheap pricing are Asiana Airlines, from $743, and Korean Air, from $748. You may be able to fly from Incheon Intl Airport to Sydney for 39% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Incheon Intl Airport to Sydney one-way?

    The cheapest airlines for a one-way flight from Incheon Intl Airport to Sydney are Jetstar ($173), T'way Air ($185), and Asiana Airlines ($376).

  • What are the most reliable airlines from Incheon Intl Airport to Sydney?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Incheon Intl Airport to Sydney on time: T'way Air (86%), Qantas Airways (69%), Jetstar (69%).

  • What are the cheapest flights from Incheon Intl Airport to Sydney?

    While on average a flight from Incheon Intl Airport to Sydney is generally $1,352, our data shows the cheapest flight currently is $179. When looking at the most popular route, (Incheon Intl - Sydney Kingsford Smith), you can expect to pay $363 for that flight.

  • Can I find deals for flights from Incheon Intl to Sydney that include hotel bookings?

    Yes. In addition to deals on Incheon Intl to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Incheon Intl to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Incheon Intl to Sydney.

  • Can I find deals for business class flights from Incheon Intl to Sydney?

    Yes. Cheapflights offers flight deals from Incheon Intl to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Incheon Intl Airport to Sydney?

    Currently, March is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $333). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of $541). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Coogee
Manly

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Top 3 airlines flying from Incheon Intl to Sydney

Discover the top 3 airlines that operate flights from Incheon Intl to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$370Average$541FlexibilityNo cancel feeOn-time74%
Asiana AirlinesCheapest$743Average$1,236FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$748Average$996FlexibilityNo cancel feeOn-time81%

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