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$399+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
— ICN
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Incheon Intl in 2025

Enter your travel dates to find the best prices.

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 December 2025.

Wed 31/1211:15SYD - ICN
1 stop20h 10mMultiple Airlines
Fri 6/321:50ICN - SYD
Nonstop10h 15mMultiple Airlines
Deal found 25/12$1,073
Wed 31/1211:40SYD - ICN
Nonstop10h 35mJetstar
Fri 6/321:50ICN - SYD
Nonstop10h 15mJetstar
Deal found 25/12$1,179
Wed 31/1221:50SYD - ICN
1 stop20h 10mMultiple Airlines
Thu 30/422:35ICN - SYD
2 stops20h 00mMultiple Airlines
Deal found 26/12$1,188
Wed 31/1207:30SYD - ICN
3 stops26h 40mMultiple Airlines
Wed 7/114:20ICN - SYD
3 stops39h 00mMultiple Airlines
Deal found 26/12$1,207
Wed 31/1221:50SYD - ICN
1 stop20h 10mAirAsia X
Thu 30/408:15ICN - SYD
1 stop23h 05mAirAsia X
Deal found 26/12$1,228
Wed 31/1211:15SYD - ICN
1 stop20h 10mVietJet Air
Sun 4/107:00ICN - SYD
1 stop23h 05mVietJet Air
Deal found 24/12$1,273
Wed 31/1220:05SYD - ICN
2 stops27h 40mMultiple Airlines
Sun 4/107:00ICN - SYD
1 stop23h 05mMultiple Airlines
Deal found 24/12$1,283

Find flight deals to Incheon Intl Airport

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 December 2025.

Return from

$769

One-way from

$399

Popular in

December

Cheapest in

May

Average price

$1,468

Good round-trip deal

$950 or less

Good one-way deal

$514 or less
Air China
  • Air China
  • 1/2-9/2
  • 2 total stops
  • 41h 30m total
  • Sydney to Seoul
Search Deals
China Eastern
  • China Eastern
  • 10/2
  • 3 total stops
  • 29h 55m total
  • Sydney to Incheon
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($226 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
Search Deals
Price to beat on a round-trip flight from Sydney Kingsford Smith to Incheon Intl.
Search Deals
Price to beat on a one-way flight from Sydney Kingsford Smith to Incheon Intl.
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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 December 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

Thu 28/5

11:40-21:30

Nonstop10h 50m

Incheon Intl

Thu 11/6

21:50-09:05

Nonstop10h 15m

$840

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Sun 17/5

10:15-06:00

2 stops20h 45m

Incheon Intl

Thu 28/5

11:40-07:20

1 stop18h 40m

$843

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Wed 15/4

11:25-12:30

1 stop26h 05m

Incheon Intl

Wed 22/4

21:50-09:05

Nonstop10h 15m

$863

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Sat 24/1

14:00-13:20

1 stop25h 20m

Incheon Intl

Sat 31/1

07:35-17:40

3 stops32h 05m

$937

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Wed 15/4

10:15-06:00

2 stops20h 45m

Incheon Intl

Wed 22/4

07:15-07:20

2 stops23h 05m

$946

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Thu 12/2

12:15-21:15

Nonstop11h 00m

Incheon Intl

Sat 21/2

21:40-10:15

Nonstop10h 35m

$975

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Thu 15/1

20:40-11:40

1 stop17h 00m

Incheon Intl

Sun 18/1

07:00-08:05

1 stop23h 05m

$991

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 30/3

19:45-21:45

3 stops28h 00m

Incheon Intl

Tue 7/4

21:50-09:05

Nonstop10h 15m

$997

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Tue 19/5

10:15-06:40

1 stop21h 25m

Incheon Intl

Mon 1/6

11:05-08:15

2 stops20h 10m

$1,001

SydneyIncheon

SYD - ICN

SYDICN

Sydney Kingsford Smith

Mon 26/1

15:15-16:30

2 stops27h 15m

$401

Flights are sorted by cheapest return flights first.

Deals found on 26/12

Showing 1-10 of 21 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 19 December 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 20 December 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 December 2025.
Check out reviews from past customers who have flown Korean Air, Asiana Airlines, andChina Southern 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
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

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
1,185 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

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
500 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

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.
China Southern
7.5
Good
123 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

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
495 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Comfort

8.3

Food

8.1

Crew

8.7

Boarding

8.5

Overall

8.4

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 $76, while return flights cost around $106.

  • How much is a return flight to Incheon Intl?

    A return flight to Incheon Intl will typically cost around $282, however they can be found for as little as $106.

  • 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 35 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
Suwon
Seongnam

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