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Cheap flights from Incheon Intl Airport to Sydney from $327

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SYD
21 Aug — 28 Aug1
1 adult

Cheapflights Tip: The best prices from Incheon Intl to Sydney Kingsford Smith are usually found in June or March, booked 15 days in advance, depart on a Monday or Friday and return on a Sunday

Cheap 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 16 August 2025.

Round-trip from

$694

One-way from

$327

Popular in

January

Cheapest in

June

Average price

$851

Good round-trip deal

$364 or less

Good one-way deal

$465 or less
XiamenAir
  • XiamenAir
  • 2/9-6/9
  • 2 total stops
  • 44h 55m total
  • Incheon to Sydney
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China Southern
  • China Southern
  • 22/8
  • 1 total stop
  • 25h 40m total
  • Incheon to Sydney
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Highest demand for flights based on searches. 18% potential increase in price ($341 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Incheon Intl to Sydney Kingsford Smith.
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Price to beat on a one-way flight from Incheon Intl to Sydney Kingsford Smith.
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Find 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 16 August 2025.

Tue 2/913:30ICN - SYD
1 stop18h 50mXiamenAir
Sat 6/911:25SYD - ICN
1 stop26h 05mXiamenAir
Deal found 15/8$694
Thu 21/813:30ICN - SYD
1 stop18h 50mXiamenAir
Tue 26/811:25SYD - ICN
1 stop26h 05mXiamenAir
Deal found 15/8$696
Wed 17/914:15ICN - SYD
3 stops40h 45mMultiple Airlines
Thu 2/1021:15SYD - ICN
1 stop22h 50mMultiple Airlines
Deal found 15/8$698
Tue 9/908:15ICN - SYD
1 stop22h 35mMultiple Airlines
Wed 17/909:15SYD - ICN
2 stops44h 15mMultiple Airlines
Deal found 14/8$699
Sat 6/913:10ICN - SYD
2 stops21h 05mChina Eastern
Sat 13/911:20SYD - ICN
2 stops24h 40mChina Eastern
Deal found 15/8$701
Sat 30/813:10ICN - SYD
2 stops21h 05mChina Eastern
Sat 6/911:20SYD - ICN
2 stops24h 40mChina Eastern
Deal found 15/8$702
Wed 27/808:30ICN - SYD
2 stops22h 10mChina Eastern
Thu 4/911:00SYD - ICN
2 stops27h 15mChina Eastern
Deal found 15/8$705
Wed 20/811:30ICN - SYD
1 stop31h 00mScoot
Tue 26/812:50SYD - ICN
2 stops33h 30mScoot
Deal found 14/8$707
Fri 24/1008:30ICN - SYD
2 stops22h 10mChina Eastern
Mon 27/1013:30SYD - ICN
3 stops28h 20mChina Eastern
Deal found 15/8$708
Tue 26/813:10ICN - SYD
2 stops21h 05mChina Eastern
Wed 3/911:00SYD - ICN
2 stops26h 10mChina Eastern
Deal found 15/8$710
Fri 24/1008:30ICN - SYD
2 stops22h 10mChina Eastern
Thu 30/1012:00SYD - ICN
2 stops26h 15mChina Eastern
Deal found 15/8$711

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 16 August 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to Sydney that are best for you.

Fly from

Incheon Intl

Fly to

Sydney

Route

Depart

Return

Price

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Wed 29/10

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Thu 27/11

06:20-20:45

1 stop16h 25m

$696

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Mon 15/12

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Thu 15/1

11:40-20:15

Nonstop10h 35m

$701

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Fri 31/10

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Wed 5/11

11:40-20:15

Nonstop10h 35m

$707

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Wed 3/9

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Tue 9/9

10:45-20:15

Nonstop10h 30m

$745

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 2/9

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Tue 9/9

10:45-20:15

Nonstop10h 30m

$764

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sat 13/9

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Wed 17/9

10:45-20:15

Nonstop10h 30m

$790

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 2/9

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Thu 4/9

10:45-20:15

Nonstop10h 30m

$800

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 9/9

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Sat 13/9

10:45-20:15

Nonstop10h 30m

$819

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Mon 15/9

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Mon 22/9

10:45-20:15

Nonstop10h 30m

$851

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Fri 14/11

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Tue 18/11

11:40-20:15

Nonstop10h 35m

$851

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 24 results
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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 return 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 return flight from Incheon Intl to Sydney. Price data was last updated on 8 August 2025.

Booking 15 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, May is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $129). Flying from Incheon Intl Airport to Sydney in October is currently the most expensive (average of $171). 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 16 August 2025.

When flying from Incheon Intl Airport to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 57% versus a flight in the afternoon.

Weekly flight availability from Incheon Intl Airport to Sydney

Explore weekly flight availability from Incheon Intl to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 August 2025.

The most flights from ICN to SYD are scheduled on a Monday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

What’s the top stopover airport for flights from Incheon Intl Airport to Sydney?

Share of one-stop return flights from Incheon Intl Airport to Sydney chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Hong Kong (HKG) – chosen by Cheapflights users on 26% of one-stop itineraries from Incheon Intl Airport to Sydney on Cheapflights.

What’s the cheapest stopover airport for flights from Incheon Intl Airport to Sydney?

Average return fare for one-stop flights from Incheon Intl Airport to Sydney, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Kuala Lumpur (KUL) is the most affordable one-stop option, with an average return flight price of $508.

What’s the fastest stopover option from Incheon Intl Airport to Sydney?

Shortest average travel time for one-stop one-way flights from Incheon Intl Airport to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) have the shortest average one-way travel time for one-stop routes: 12h 55m.

Which airport typically offers the quickest stopover for flights from Incheon Intl Airport to Sydney?

Average stopover duration for one-stop one-way flights from Incheon Intl Airport to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average stopover time of 1h 30m.

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 16 August 2025.
See what other customers who have flown with Korean Air, Asiana Airlines, andQantas Airways from Incheon Intl Airport to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,131 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
1,131 reviews
Korean Air
8.4
Very Good
1,131 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
8.2
Very Good
473 reviews
Korean Air
8.4
Very Good
1,131 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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!!
Qantas Airways
7.5
Good
895 reviews
Korean Air
8.4
Very Good
1,131 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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
464 reviews
Korean Air
8.4
Very Good
1,131 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

Overall

8.4

Crew

8.7

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?

    Located just 7.5 km from the city centre, Sydney Kingsford Smith is the airport most travellers will use when flying to Sydney from Incheon Intl. Booking flights from Incheon Intl to Kingsford Smith (SYD) should be relatively easy as there are 11 daily inbound flights from Incheon Intl from 6 different airlines.

  • How popular is this Incheon Intl Airport to Sydney flight route?

    Within the past month, 515 users have taken a look at flights from Incheon Intl to Sydney Kingsford Smith.

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

    Jetstar, at $573, was found to be the cheapest airline from Incheon Intl Airport to Sydney.Alternate airlines to your destination round-trip include T'way Air and China Eastern. Jetstar is priced at 39% lower than the current average price of a flight leaving 3 months from now.

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

    No one likes to see their flight delayed. When booking a flight from Incheon Intl Airport to Sydney consider choosing T'way Air(81%), Qantas Airways(45%) or Jetstar(45%), as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Incheon Intl Airport to Sydney is $269. On average you can expect to pay $1,877. The most popular route, (Incheon Intl - Sydney Kingsford Smith), can usually be booked for $521.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $129). Flying from Incheon Intl Airport to Sydney in October is currently the most expensive (average of $171). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Coogee
Manly
Terrigal
Cronulla
Lithgow
Bondi Beach
Randwick
Leura

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Top 6 airlines flying from Incheon Intl to Sydney

Discover the top 6 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 647,157 searches. Data last updated 16 August 2025.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$573Average$895FlexibilityNo cancel feeOn-time74%
Search Jetstar flights
T'way AirCheapest$588Average$1,196FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
China EasternCheapest$599Average$925FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qantas AirwaysCheapest$909Average$1,296FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Korean AirCheapest$1,032Average$1,260FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Asiana AirlinesCheapest$1,069Average$1,397FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Incheon Intl to Sydney?

Deals for Incheon Intl to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Incheon Intl to Sydney?

Millions of users choose and trust Cheapflights to book the best flight deals from Incheon Intl to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Incheon Intl to Sydney with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Incheon Intl to Sydney, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Incheon Intl to Sydney become cheaper?

Yes! Start tracking prices for Incheon Intl to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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