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Cheap flights from Incheon Intl Airport to Sydney from $298

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SYD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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

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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 14 November 2025.

Sat 29/1112:20ICN - SYD
1 stop21h 55mChina Eastern
Wed 3/1213:30SYD - ICN
1 stop23h 45mChina Eastern
Deal found 13/11$749
Tue 18/1112:20ICN - SYD
1 stop21h 55mChina Eastern
Wed 26/1113:30SYD - ICN
1 stop23h 45mChina Eastern
Deal found 13/11$751
Fri 21/1114:20ICN - SYD
3 stops42h 40mChina Eastern
Wed 26/1113:30SYD - ICN
1 stop32h 20mChina Eastern
Deal found 13/11$752
Mon 29/1220:50ICN - SYD
1 stop36h 10mChina Eastern
Fri 9/112:00SYD - ICN
2 stops25h 15mChina Eastern
Deal found 13/11$754
Mon 29/1220:50ICN - SYD
1 stop36h 10mChina Eastern
Mon 12/115:10SYD - ICN
1 stop22h 05mChina Eastern
Deal found 13/11$755
Sat 29/1112:20ICN - SYD
1 stop21h 55mChina Eastern
Fri 5/1213:30SYD - ICN
1 stop23h 45mChina Eastern
Deal found 12/11$757
Tue 18/1112:20ICN - SYD
1 stop21h 55mChina Eastern
Sun 23/1113:30SYD - ICN
1 stop23h 45mChina Eastern
Deal found 12/11$758
Mon 17/1120:50ICN - SYD
1 stop36h 10mChina Eastern
Sun 23/1113:30SYD - ICN
1 stop32h 20mChina Eastern
Deal found 12/11$760
Tue 30/1214:20ICN - SYD
3 stops42h 40mChina Eastern
Mon 9/212:00SYD - ICN
2 stops25h 00mChina Eastern
Deal found 12/11$763
Wed 31/1214:20ICN - SYD
3 stops42h 40mMultiple Airlines
Fri 30/111:40SYD - ICN
Nonstop10h 35mMultiple Airlines
Deal found 13/11$766

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 14 November 2025.

Round-trip from

$749

One-way from

$298

Popular in

January

Cheapest in

March

Average price

$856

Good round-trip deal

$655 or less

Good one-way deal

$425 or less
China Eastern
  • China Eastern
  • 29/11-3/12
  • 2 total stops
  • 45h 40m total
  • Incheon to Sydney
Search Deals
VietJet Air
  • VietJet Air
  • 17/3
  • 1 total stop
  • 23h 05m total
  • Incheon to Sydney
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($387 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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

 
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 14 November 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

Thu 18/12

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Wed 14/1

11:40-20:15

Nonstop10h 35m

$794

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Thu 5/3

00:10-07:55

1 stop29h 45m

Sydney Kingsford Smith

Wed 11/3

22:15-20:55

1 stop24h 40m

$908

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Wed 4/3

00:10-10:20

1 stop32h 10m

Sydney Kingsford Smith

Thu 12/3

22:15-20:55

1 stop24h 40m

$911

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Thu 9/4

10:35-08:15

1 stop20h 40m

Sydney Kingsford Smith

Mon 13/4

14:15-16:35

1 stop27h 20m

$945

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sun 19/4

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Thu 30/4

06:00-19:55

1 stop14h 55m

$975

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Mon 24/11

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Wed 3/12

11:40-20:15

Nonstop10h 35m

$980

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sun 8/2

10:35-10:45

1 stop22h 10m

Sydney Kingsford Smith

Sat 28/2

11:10-08:50

1 stop23h 40m

$986

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Thu 26/2

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Tue 3/3

11:40-20:15

Nonstop10h 35m

$990

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 3/3

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Fri 13/3

11:15-05:00

1 stop19h 45m

$992

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 17/3

21:50-10:05

Nonstop10h 15m

Sydney Kingsford Smith

Tue 24/3

11:40-20:15

Nonstop10h 35m

$993

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 23 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 7 November 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, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $549). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of $766). 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 14 November 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 56% versus a flight in the afternoon.

How much does it cost for a return flight from Incheon Intl Airport to Sydney?

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 14 November 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
1,163 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
1,163 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
486 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
934 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
6.6
Okay
482 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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.

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

    Jetstar, Malaysia Airlines, and Vietnam Airlines can get you from Incheon Intl Airport to Sydney in just under 10h 15m. Your travel time can differ by up to 19h 30m. Airlines will cover a distance of 8335 km. Both multi-stop and direct flights can be found to your destination and back.

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

    China Eastern, at $533, 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 Jetstar. China Eastern is priced at 44% lower than the current average price of a flight leaving 3 months from now.

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

    $334 is the cheapest one-way deal found within the past few days, from Jetstar. You may also be able to find cheap deals on T'way Air and Vietnam Airlines, with prices starting from $348 and $394, respectively.

  • 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(84%), Qantas Airways(56%) or Jetstar(56%), 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 $293. On average you can expect to pay $1,944. The most popular route, (Incheon Intl - Sydney Kingsford Smith), can usually be booked for $505.

  • 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, November is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $549). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of $766). 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?

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Katoomba
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Bondi Beach
Cronulla

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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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest$533Average$859FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
T'way AirCheapest$584Average$1,121FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
JetstarCheapest$647Average$932FlexibilityNo cancel feeOn-time74%
Search Jetstar flights
Qantas AirwaysCheapest$903Average$1,287FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Asiana AirlinesCheapest$1,003Average$1,383FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest$1,025Average$1,213FlexibilityNo cancel feeOn-time81%
Search Korean Air 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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