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$116+ Cheap flights from Incheon Intl Airport

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ICN — SYD
30 Oct — 6 Nov1
1 adult
1 adult, Economy

What to know about flights from Incheon Intl

Discover essential information about flights departing from Incheon Intl, including flight schedules, destinations, airlines operating at the Incheon Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 30 September 2025.

Cheapest airline

Jeju Air

Good round-trip deal

$135 or less

Good one-way deal

$75 or less
On average, Jeju Air currently has the cheapest one-way flight from Incheon Intl (avg. price of $115).
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Price to beat on a round-trip flight from Incheon Intl.
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Price to beat on a one-way flight from Incheon Intl.
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Find flights from Incheon Intl

Cheapest flights from Incheon Intl
Explore the most affordable flight options available from Incheon Intl. Find the lowest fares based on data from user searches, with prices last updated on 30 September 2025.

Mon 13/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Sun 19/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 29/9$201
Fri 17/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Fri 24/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 29/9$204
Mon 13/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Wed 5/1101:00BKK - ICN
Nonstop5h 25mJeju Air
Deal found 28/9$216
Sun 12/1016:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Mon 3/1122:55BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 28/9$222
Sun 12/1016:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Sun 26/1022:55BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 29/9$225
Sun 12/1016:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Mon 20/1022:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 28/9$231
Mon 13/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Sat 18/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 29/9$237
Fri 17/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Sun 19/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 29/9$239
Thu 16/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Sat 25/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 29/9$240
Fri 17/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Thu 23/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 30/9$242
Thu 16/1018:00ICN - BKK
Nonstop6h 05mT'way Air
Fri 24/1000:05BKK - ICN
Nonstop5h 35mT'way Air
Deal found 30/9$245
Sat 11/1014:40ICN - NTG
1 stop10h 00mShenzhen Airlines
Mon 13/1008:25NTG - ICN
1 stop28h 15mShenzhen Airlines
Deal found 29/9$355

Find flights from Incheon Intl within your budget

 
Find flights departing from Incheon Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 30 September 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 17/10

20:05-23:55

Nonstop5h 50m

Bangkok Suvarnabhumi

Sat 18/10

01:00-08:40

Nonstop5h 40m

$239

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 10/10

20:05-23:55

Nonstop5h 50m

Bangkok Suvarnabhumi

Thu 16/10

01:00-08:40

Nonstop5h 40m

$253

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 17/10

20:05-23:55

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 22/10

01:00-08:40

Nonstop5h 40m

$291

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 29/10

19:30-23:45

Nonstop6h 15m

Bangkok Suvarnabhumi

Thu 6/11

01:00-08:25

Nonstop5h 25m

$310

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 11/11

19:30-23:45

Nonstop6h 15m

Bangkok Suvarnabhumi

Tue 18/11

01:00-08:25

Nonstop5h 25m

$310

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 10/11

19:30-23:45

Nonstop6h 15m

Bangkok Suvarnabhumi

Fri 14/11

01:00-08:25

Nonstop5h 25m

$326

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 23/10

20:05-23:55

Nonstop5h 50m

Bangkok Suvarnabhumi

Tue 28/10

01:00-08:25

Nonstop5h 25m

$327

IncheonNantong

ICN - NTG

ICNNTG

Incheon Intl

Sat 11/10

14:40-23:40

1 stop10h 00m

Nantong

Mon 13/10

08:25-13:40

1 stop28h 15m

$355

IncheonNantong

ICN - NTG

ICNNTG

Incheon Intl

Thu 16/10

14:40-23:40

1 stop10h 00m

Nantong

Mon 20/10

08:25-13:40

1 stop28h 15m

$355

IncheonNantong

ICN - NTG

ICNNTG

Incheon Intl

Sun 12/10

14:40-23:40

1 stop10h 00m

Nantong

Sun 19/10

20:15-13:40

1 stop16h 25m

$355

Flights are sorted by cheapest return flights first.

Deals found on 28/9

Showing 1-10 of 60 results
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Best time to book a flight from Incheon Intl

Have a flexible travel schedule? Discover the best time to fly 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.

Travel insights for flights from Incheon Intl

Get recent, data-driven insights about flights from Incheon Intl including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Incheon Intl to Sydney. Price data was last updated on 26 September 2025.

The best time to book flights from Incheon Intl Airport is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Incheon Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Incheon Intl Airport (average of $568). Flying from Incheon Intl Airport in January will prove the most costly (average of $673). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Incheon Intl Airport?

When flying from Incheon Intl Airport check dates and pricing for the following: Asiana Airlines, Jetstar, T'way Air, Korean Air, Qantas Airways. As they depart for the following popular destinations: Sydney.

Korean Air
Korean Air
From $169
Asiana Airlines
Asiana Airlines
From $215
Jetstar
Jetstar
From $211
T'way Air
T'way Air
From $383

What are popular destinations to fly to from Incheon Intl Airport?

Incheon Intl Airport offers frequent flights to Tokyo (721 flights per day), Osaka (688 flights per day) and Fukuoka (326 flights per day).

Sydney Kingsford Smith
Sydney Kingsford Smith
From $152
Tokyo
Tokyo
From $67
Ho Chi Minh City
Ho Chi Minh City
From $105
Singapore Changi
Singapore Changi
From $103

What is the cheapest place to fly to from Incheon Intl Airport?

The cheapest city to fly to from Incheon Intl Airport is Osaka, with prices starting at $61. Explore other affordable destinations below.

Osaka
Osaka
From $40
Angeles City Clark Intl
Angeles City Clark Intl
From $50
Fukuoka
Fukuoka
From $50
Nagoya Chubu Centrair Intl
Nagoya Chubu Centrair Intl
From $52

Airline reviews for flights from Incheon Intl

Get insights into the airlines that provide service from 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 airline for your flight from Incheon Intl. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, andQantas Airways from Incheon Intl Airport by reading reviews from past customers. 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
1,143 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

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
1,143 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

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
483 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

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
910 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

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
474 reviews
Korean Air
8.4
Very Good
1,143 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Food

8.1

Overall

8.4

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!!

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Alternate flight departure points to Incheon Intl

Consider leaving from one of these other departure points that are located a short distance from Incheon Intl. Flight origins were last updated on 30 September 2025.
Flights from Incheon Intl
Flights from Cheongju
Flights from Jeju City
Flights from Busan
Flights from Gimpo Intl
Flights from Daegu
Flights from Wonju

Related info for your journey

Access useful and relevant information related to your journey from Incheon Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 30 September 2025.

  • What are the most popular destinations to fly to from Incheon Intl Airport?

    For the current month, the most popular flights from Incheon Intl Airport are Da Nang, Bangkok Suvarnabhumi Airport, Sapporo Chitose Airport. Da Nang, Bangkok Suvarnabhumi Airport, Nha Trang are the most popular locations from Incheon Intl Airport year round.

  • What is the cheapest flight from Incheon Intl Airport to anywhere?

    Users have flown out of Incheon Intl Airport for as low as $61 to Osaka Kansai Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $641 to fly from Incheon Intl Airport.

  • What are the cheapest airlines flying from Incheon Intl Airport to anywhere?

    According to our data, users have found Jeju Air, Cebu Pacific, and VietJet Air to have the cheapest round-trip prices from Incheon Intl Airport. Some of the destinations and prices are as follows: Jeju Air flights from Incheon Intl Airport to Tokyo Narita ($158). Cebu Pacific flights from Incheon Intl Airport to Manila Ninoy Aquino Intl ($230). VietJet Air flights from Incheon Intl Airport to Hanoi Noibai ($240).

  • What is the cheapest premium economy flight from Incheon Intl Airport?

    Options for some of the cheapest premium economy flights from Incheon Intl Airport we have found on Cheapflights are as follows:
    Fly from Incheon Intl to Tokyo Narita Airport starting at $1,171
    Fly from Incheon Intl to Shanghai Pu Dong Airport starting at $1,326
    Fly from Incheon Intl to Helsinki starting at $1,749
    Fly from Incheon Intl to Shenzhen starting at $1,842

  • What is the cheapest first class flight from Incheon Intl Airport?

    If you’re looking to fly first-class from Incheon Intl Airport to anywhere, put Xiamen on your list as prices start at $14,772 for this destination.

  • What is the cheapest month to fly from Incheon Intl Airport?

    Currently, the cheapest month for flights from Incheon Intl Airport is March. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Incheon Intl Airport?

    View the cheapest flight destinations from Incheon Intl Airport:
    Fly from Seoul to Sydney from $580 round trip
    Fly from Seoul to Brisbane from $638 round trip
    Fly from Seoul to Melbourne from $677 round trip

  • How does Cheapflights help users find flights from Incheon Intl?

    Deals for flights from Incheon Intl 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 to your preference, such as price, airport, cabin class, and plenty of other options.

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

    Cheapflights simply makes it quick and affordable to book flights from Incheon Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

    Certainly. Search results for flights from Incheon Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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How does Cheapflights help users find flights from Incheon Intl?

Deals for flights from Incheon Intl 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 to your preference, such as price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Incheon Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights from Incheon Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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