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$356+ Cheap flights to Incheon Intl

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
— ICN
31 Aug — 7 Sep1
1 adult

Flights to Incheon Intl in 2025

Find the latest flights to Incheon Intl in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 26 August 2025.

Return from

$555

One-way from

$356

Popular in

December

Cheapest in

March

Average price

$954

Good round-trip deal

$929 or less

Good one-way deal

$483 or less
AirAsia X
  • AirAsia X
  • 5/9-8/9
  • 2 total stops
  • 45h 25m total
  • Sydney to Seoul
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21/10
  • 21/10
  • 1 total stop
  • 29h 15m total
  • Sydney to Incheon
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Highest demand for flights based on searches. 19% potential increase in price ($358 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease ($78 potential savings vs. average return price).
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Average for return flights in August 2025
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Price to beat on a round-trip flight from Sydney Kingsford Smith to Incheon Intl.
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Price to beat on a one-way flight from Sydney Kingsford Smith to Incheon Intl.
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Find flight deals to Incheon Intl Airport

Cheapest flights to Incheon Intl Airport
Explore the most affordable flight options available to Incheon Intl Airport. Find the lowest fares based on data from user searches, with prices last updated on 26 August 2025.

Fri 5/909:15SYD - ICN
1 stop22h 45mAirAsia X
Mon 8/920:20ICN - SYD
1 stop22h 40mAirAsia X
Deal found 23/8$555
Mon 10/1111:40SYD - ICN
Nonstop10h 35mJetstar
Wed 12/1121:50ICN - SYD
Nonstop10h 15mJetstar
Deal found 25/8$575
Tue 25/1121:50SYD - ICN
1 stop23h 55mAirAsia X
Fri 5/1207:35ICN - SYD
1 stop23h 40mAirAsia X
Deal found 25/8$582
Tue 18/1121:50SYD - ICN
1 stop23h 55mMultiple Airlines
Sat 6/1221:50ICN - SYD
Nonstop10h 15mMultiple Airlines
Deal found 25/8$584
Fri 21/1111:40SYD - ICN
Nonstop10h 35mJetstar
Sat 29/1121:50ICN - SYD
Nonstop10h 15mJetstar
Deal found 25/8$587
Mon 17/1111:40SYD - ICN
Nonstop10h 35mJetstar
Sun 23/1121:50ICN - SYD
Nonstop10h 15mJetstar
Deal found 25/8$590
Tue 21/1011:45SYD - ICN
Nonstop10h 30mJetstar
Fri 24/1021:50ICN - SYD
Nonstop10h 15mJetstar
Deal found 25/8$596
Tue 18/1121:50SYD - ICN
1 stop23h 55mMultiple Airlines
Wed 26/1113:20ICN - SYD
1 stop19h 05mMultiple Airlines
Deal found 25/8$601
Sat 29/1111:40SYD - ICN
Nonstop10h 35mMultiple Airlines
Tue 9/1213:20ICN - SYD
1 stop19h 05mMultiple Airlines
Deal found 25/8$602
Fri 21/1111:40SYD - ICN
Nonstop10h 35mMultiple Airlines
Sat 29/1113:20ICN - SYD
1 stop19h 05mMultiple Airlines
Deal found 25/8$604
Fri 28/1111:40SYD - ICN
Nonstop10h 35mMultiple Airlines
Sat 6/1213:20ICN - SYD
1 stop19h 05mMultiple Airlines
Deal found 25/8$606
Sat 29/1111:40SYD - ICN
Nonstop10h 35mJetstar
Tue 9/1221:50ICN - SYD
Nonstop10h 15mJetstar
Deal found 25/8$607

Cheapflights Fare Finder

 
Locate flights to Incheon Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 26 August 2025.
Use the filters below to find and compare flights to Incheon Intl Airport that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 24/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Fri 28/11

21:50-10:05

Nonstop10h 15m

$575

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 3/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Fri 7/11

21:50-10:05

Nonstop10h 15m

$575

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 10/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Fri 14/11

21:50-10:05

Nonstop10h 15m

$575

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Thu 20/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Sun 30/11

21:50-10:05

Nonstop10h 15m

$575

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 10/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Wed 12/11

21:50-10:05

Nonstop10h 15m

$575

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Tue 25/11

21:50-19:45

1 stop23h 55m

Incheon Intl

Thu 4/12

07:35-09:15

1 stop23h 40m

$582

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Tue 25/11

21:50-19:45

1 stop23h 55m

Incheon Intl

Fri 5/12

07:35-09:15

1 stop23h 40m

$582

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Tue 18/11

21:50-19:45

1 stop23h 55m

Incheon Intl

Sat 6/12

07:35-09:15

1 stop23h 40m

$582

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Fri 28/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Sat 6/12

13:20-10:25

1 stop19h 05m

$606

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 10/11

11:40-20:15

Nonstop10h 35m

Incheon Intl

Wed 12/11

22:35-18:50

2 stops18h 15m

$647

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 23 results
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Best time to book a flight to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to 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 to Incheon Intl Airport

When is the best time to book a flight to Incheon Intl?

Use this chart to determine the optimal time to book a return flight from Sydney to Incheon Intl. Price data was last updated on 22 August 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights to Incheon Intl. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

When is the cheapest time to fly to Incheon Intl?

Use this chart to determine the cheapest time to fly return from Sydney to Incheon Intl. Price data was last updated on 24 August 2025.

Users looking for the lowest fares to Incheon Intl should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Friday mornings, when prices are usually at their highest.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated 26 August 2025.
Check out reviews from past customers who have flown Korean Air, Asiana Airlines, andQantas Airways to South Korea to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,133 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.2

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,133 reviews
Korean Air
8.4
Very Good
1,133 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.2

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very Good
477 reviews
Korean Air
8.4
Very Good
1,133 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.2

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Qantas Airways
7.5
Good
904 reviews
Korean Air
8.4
Very Good
1,133 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.2

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Jetstar
6.5
Okay
468 reviews
Korean Air
8.4
Very Good
1,133 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.2

Food

8.1

Boarding

8.5

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQs about flying to Incheon Intl

Getting around Incheon

Incheon has an extensive public transportation system that makes it easy to travel throughout the city. The underground subway system avoids the city’s traffic and is easily navigated by tourists. Kiosks sell transportation cards that can be loaded with credits and used for transfers between the metro and bus systems. Blue buses run between Incheon’s various districts, while small green buses stay within neighbourhoods. Taxis are also plentiful and can be hailed from most streets. Meter use is standard, and taxi fare can be paid for with cash or, in many cases, a credit card.

Getting to the city

Incheon International Airport (ICN) is located on Yeongjong Island, just off the coast of Incheon proper. Flight travellers appreciate that the airport is well-connected to the city via several transit options, the most popular of which are the express airport buses. These buses run on regular intervals along routes throughout Incheon and beyond. Express airport buses are also one of the more affordable transit options at Incheon International Airport. Taxis are also available, though travellers should make sure their drivers use the meters at all times.

  • Can I find cheaper flights to Incheon Intl if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Incheon Intl on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Incheon Intl?

    Based on reviews from Cheapflights users, AirAsia X is rated the highest out of the airlines that fly to Incheon Intl.

  • What is the cheapest airport to fly to in Incheon Intl?

    Incheon Intl is currently the cheapest airport to fly to in Incheon Intl. One-way flights to Incheon Intl typically cost $30, while return flights cost around $210.

  • How much is a return flight to Incheon Intl?

    A return flight to Incheon Intl will typically cost around $270, however they can be found for as little as $136.

  • Where does the fastest flight to Incheon Intl depart from?

    For those looking to save time traveling to Incheon Intl, Brisbane offers the quickest one-way flight (9 hours 40 minutes).

  • Does Incheon Intl have car hire?

    Yes. Those touching down at Incheon Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Incheon Intl?

    Yes. Incheon Intl has hotels nearby for those requiring accommodations. Darakhyu Incheon Airport Terminal 2 Capsule Hotel by Walkerhill is the closest property to Incheon Intl (0.0 km away from Incheon Intl).

See more FAQs

Travelling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Seongnam
Suwon

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