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Cheap flights from Incheon Intl Airport to Sydney from $248

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SYD
25 May — 1 Jun1
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 80 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap flight deals from Incheon Intl to Sydney

Enter your travel dates to find the best prices.

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 25 April 2026.

Sat 15/808:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sat 5/909:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 22/4$545
Fri 3/708:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sat 11/709:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 22/4$550
Sat 4/708:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Thu 9/709:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 22/4$557
Thu 6/808:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sun 23/809:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 22/4$558
Thu 2/708:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Fri 10/709:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 22/4$562
Sat 27/608:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Thu 9/709:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 21/4$565
Sat 7/1107:35
ICN
-
SYD
1 stop23h 40m
AirAsia X
Sat 14/1110:45
SYD
-
ICN
1 stop21h 35m
AirAsia X
Deal found 20/4$566
Thu 6/808:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sun 9/809:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 21/4$568
Fri 21/808:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sun 13/909:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 21/4$569
Sat 4/708:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sat 18/709:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 23/4$571
Thu 13/808:15
ICN
-
SYD
1 stop23h 05m
AirAsia X
Sun 23/809:45
SYD
-
ICN
1 stop22h 15m
AirAsia X
Deal found 22/4$572

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 25 April 2026.

Round-trip from

$550

One-way from

$248

Popular in

January

Cheapest in

March

Average price

$861

Good round-trip deal

$464 or less

Good one-way deal

$413 or less
AirAsia X
  • AirAsia X
  • 3/7-11/7
  • 2 total stops
  • 45h 20m total
  • Incheon to Sydney
Search Deals
AirAsia X
  • AirAsia X
  • 2/7
  • 1 total stop
  • 23h 05m total
  • Incheon to Sydney
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($410 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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

 
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 25 April 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 return flight

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sun 17/5

14:15-12:35

2 stops21h 20m

Sydney Kingsford Smith

Sat 23/5

10:00-14:50

2 stops29h 50m

$724

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Mon 1/6

15:55-12:35

2 stops43h 40m

Sydney Kingsford Smith

Sat 6/6

10:00-14:50

2 stops29h 50m

$768
Fastest return journey

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Thu 18/6

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Thu 25/6

10:45-20:15

Nonstop10h 30m

$934

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sun 31/5

21:50-09:05

Nonstop10h 15m

Sydney Kingsford Smith

Sat 6/6

06:00-20:00

1 stop15h 00m

$941

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sat 23/5

21:30-14:15

1 stop15h 45m

Sydney Kingsford Smith

Sat 30/5

06:00-20:00

1 stop15h 00m

$975

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 26/5

23:50-19:20

1 stop18h 30m

Sydney Kingsford Smith

Mon 10/8

20:35-15:30

1 stop19h 55m

$989

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Sat 6/6

23:50-19:20

1 stop18h 30m

Sydney Kingsford Smith

Wed 10/6

20:35-15:30

1 stop19h 55m

$989

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Wed 10/6

16:45-11:45

1 stop18h 00m

Sydney Kingsford Smith

Tue 16/6

20:35-15:30

1 stop19h 55m

$989

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Thu 28/5

16:35-12:35

2 stops19h 00m

Sydney Kingsford Smith

Tue 16/6

11:00-11:55

1 stop25h 55m

$1,019

IncheonSydney

ICN - SYD

ICNSYD

Incheon Intl

Tue 2/6

13:10-09:00

2 stops18h 50m

Sydney Kingsford Smith

Mon 15/6

20:30-15:10

1 stop19h 40m

$1,019

Flights are sorted by cheapest return flights first.

Deals found on 25/4

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

Booking 79 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 $657). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of $1,236). 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 25 April 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 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 25 April 2026.
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
1,213 reviews
Check prices

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

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
1,213 reviews
Korean Air
8.4
Very Good
1,213 reviews
Check prices

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

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
521 reviews
Korean Air
8.4
Very Good
1,213 reviews
Check prices

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

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
1,027 reviews
Korean Air
8.4
Very Good
1,213 reviews
Check prices

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

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
539 reviews
Korean Air
8.4
Very Good
1,213 reviews
Check prices

Crew

8.7

Comfort

8.3

Overall

8.4

Boarding

8.5

Entertainment

8.2

Food

8.1

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 5 different airlines.

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

    China Eastern and Jetstar can get you from Incheon Intl Airport to Sydney in just under 10h 15m. Your travel time can differ by up to 11h 05m. 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?

    Jetstar, at $414, 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 Qantas Airways. Jetstar is priced at 52% 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?

    $232 is the cheapest one-way deal found within the past few days, from Jetstar. You may also be able to find cheap deals on XiamenAir and T'way Air, with prices starting from $260 and $260, 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(92%), Etihad Airways(71%) or Turkish Airlines(71%), 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 $301. On average you can expect to pay $1,535. The most popular route, (Incheon Intl - Sydney Kingsford Smith), can usually be booked for $576.

  • 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, March is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of $657). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of $1,236). 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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Top 5 airlines flying from Incheon Intl to Sydney

Discover the top 5 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 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$414Average$835FlexibilityNo cancel feeOn-time74%
Search Jetstar flights
T'way AirCheapest$653Average$1,051FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Qantas AirwaysCheapest$864Average$1,378FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Korean AirCheapest$958Average$1,250FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Asiana AirlinesCheapest$977Average$1,456FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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