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Cheap flights from Incheon Intl Airport to London from £123

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LON
6 Feb — 13 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Incheon Intl to London are usually found in May or November, booked 27 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Incheon Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to London (LON). 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 7 January 2026.

Round-trip from

£347

One-way from

£123

Popular in

October

Cheapest in

May

Average price

£563

Good round-trip deal

£495 or less

Good one-way deal

£468 or less
China Eastern
  • China Eastern
  • 22/1-28/1
  • 2 total stops
  • 39h 45m total
  • Incheon to London
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China Eastern
  • China Eastern
  • 23/1
  • 1 total stop
  • 17h 35m total
  • Incheon to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£59 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Incheon Intl to London (LON).
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Price to beat on a one-way flight from Incheon Intl to London (LON).
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Find flight deals from Incheon Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from Incheon Intl to London
Explore the most affordable flight options available from Incheon Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 January 2026.

Thu 22/116:10ICN - LGW
1 stop23h 20mChina Eastern
Wed 28/110:30LGW - ICN
1 stop16h 25mChina Eastern
Deal found 5/1£347
Fri 30/116:10ICN - LGW
1 stop30h 50mChina Eastern
Sun 8/210:30LGW - ICN
1 stop19h 50mChina Eastern
Deal found 4/1£348
Mon 19/116:10ICN - LGW
1 stop30h 50mChina Eastern
Mon 2/210:30LGW - ICN
1 stop16h 25mChina Eastern
Deal found 6/1£349
Mon 19/116:10ICN - LGW
1 stop30h 50mChina Eastern
Wed 4/210:30LGW - ICN
1 stop19h 35mChina Eastern
Deal found 5/1£350
Mon 19/116:10ICN - LGW
1 stop30h 50mChina Eastern
Tue 3/210:30LGW - ICN
1 stop16h 25mChina Eastern
Deal found 5/1£353
Mon 19/116:10ICN - LGW
1 stop30h 50mChina Eastern
Tue 20/117:00LGW - ICN
1 stop15h 25mChina Eastern
Deal found 5/1£353
Wed 4/318:25ICN - LGW
1 stop28h 35mChina Eastern
Wed 11/310:30LGW - ICN
1 stop21h 55mChina Eastern
Deal found 6/1£354
Wed 21/116:10ICN - LGW
1 stop30h 50mChina Eastern
Mon 16/210:30LGW - ICN
2 stops20h 20mChina Eastern
Deal found 5/1£356
Mon 19/116:10ICN - LGW
1 stop30h 50mChina Eastern
Mon 16/210:30LGW - ICN
2 stops20h 20mChina Eastern
Deal found 5/1£358
Sun 11/114:50ICN - STN
2 stops34h 25mMultiple Airlines
Sun 18/107:40STN - ICN
2 stops29h 15mMultiple Airlines
Deal found 5/1£359
Tue 20/112:55ICN - LGW
1 stop34h 05mChina Eastern
Mon 26/110:30LGW - ICN
1 stop21h 55mChina Eastern
Deal found 6/1£359
Tue 20/116:10ICN - LGW
1 stop30h 50mChina Eastern
Tue 27/110:30LGW - ICN
1 stop19h 50mChina Eastern
Deal found 7/1£359

Cheapflights Fare Finder

 
Customise your flight search to find flights from Incheon Intl to London 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 858,174 searches. Data last updated 7 January 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to London that are best for you.

Fly from

Incheon Intl

Fly to

London

Route

Depart

Return

Price

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 30/1

16:20-14:00

1 stop30h 40m

London Gatwick

Sun 8/2

10:30-17:25

1 stop21h 55m

£361

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Wed 21/1

16:10-14:00

1 stop30h 50m

London Gatwick

Tue 27/1

10:30-15:20

1 stop19h 50m

£361

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Wed 4/2

23:45-17:05

3 stops26h 20m

London Luton

Sun 8/2

13:10-19:00

2 stops20h 50m

£380

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 28/1

13:10-15:55

1 stop35h 45m

London Heathrow

Wed 4/2

21:00-20:45

1 stop14h 45m

£381

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 4/2

23:45-18:30

1 stop27h 45m

London Heathrow

Mon 9/2

19:50-19:00

2 stops38h 10m

£424

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 2/2

23:45-18:30

1 stop27h 45m

London Heathrow

Mon 9/2

19:50-19:00

2 stops38h 10m

£425

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Wed 28/1

15:40-06:30

2 stops23h 50m

London Gatwick

Wed 4/2

10:30-11:55

1 stop16h 25m

£458

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Mon 19/1

18:25-10:35

2 stops25h 10m

London Luton

Fri 23/1

13:55-20:45

2 stops21h 50m

£468

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Wed 28/1

12:55-10:30

2 stops30h 35m

London Luton

Wed 4/2

07:00-19:50

2 stops27h 50m

£474

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 24/2

17:50-06:40

1 stop21h 50m

London Heathrow

Thu 5/3

20:55-21:55

1 stop16h 00m

£475

Flights are sorted by cheapest return flights first.

Deals found on 4/1

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

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

How far ahead should I book a flight from Incheon Intl Airport to London?

Use this chart to determine the optimal time to book a return flight from Incheon Intl to London. Price data was last updated on 2 January 2026.

To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to London, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £108). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £543). 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 LON?

Find hourly flight availability from Incheon Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 January 2026.

When flying from Incheon Intl Airport to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Incheon Intl Airport to London

Explore weekly flight availability from Incheon Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 7 January 2026.

The most flights from ICN to LON are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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

What’s the top stopover airport for flights from Incheon Intl Airport to London?

Share of one-stop return flights from Incheon Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Shanghai (PVG) – chosen by Cheapflights users on 35% of one-stop itineraries from Incheon Intl Airport to London on Cheapflights.

What’s the cheapest stopover airport for flights from Incheon Intl Airport to London?

Average return fare for one-stop flights from Incheon Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Zhengzhou (CGO) is the most affordable one-stop option, with an average return flight price of £367.

What’s the fastest stopover option from Incheon Intl Airport to London?

Shortest average travel time for one-stop one-way flights from Incheon Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Munich (MUC) have the shortest average one-way travel time for one-stop routes: 16h 00m.

Which airport typically offers the quickest stopover for flights from Incheon Intl Airport to London?

Average stopover duration for one-stop one-way flights from Incheon Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Singapore (SIN) offer the fastest connection on this route, with an average stopover time of 1h 20m.

How often are flights from Incheon to London delayed?

About 29% of weekly flights between Incheon and London have experienced delays in the past year, with the average delay time being 105 minutes.

What is the most punctual flight time for Incheon to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Incheon to London flights?

Over the past year, Korean Air have had the lowest number of delays on this route, with just 21% of flights being delayed.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 7 January 2026.
Get a feel of what it's like to fly with Asiana Airlines, China Southern, andChina Eastern from Incheon Intl Airport to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Asiana Airlines
8.2
Very Good
500 reviews
Check prices

Food

8.0

Comfort

8.0

Overall

8.2

Entertainment

7.7

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Asiana Airlines
8.2
Very Good
500 reviews
Asiana Airlines
8.2
Very Good
500 reviews
Check prices

Food

8.0

Comfort

8.0

Overall

8.2

Entertainment

7.7

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
China Southern
7.5
Good
125 reviews
Asiana Airlines
8.2
Very Good
500 reviews
Check prices

Food

8.0

Comfort

8.0

Overall

8.2

Entertainment

7.7

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
China Eastern
7.2
Good
186 reviews
Asiana Airlines
8.2
Very Good
500 reviews
Check prices

Food

8.0

Comfort

8.0

Overall

8.2

Entertainment

7.7

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Air China
7.2
Good
136 reviews
Asiana Airlines
8.2
Very Good
500 reviews
Check prices

Food

8.0

Comfort

8.0

Overall

8.2

Entertainment

7.7

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Lufthansa
6.8
Okay
7,690 reviews
Asiana Airlines
8.2
Very Good
500 reviews
Check prices

Food

8.0

Comfort

8.0

Overall

8.2

Entertainment

7.7

Boarding

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Incheon Intl Airport to London in 21h 50m. Fly via China Eastern, Scandinavian Airlines, or Etihad Airways to get the fastest option. Airlines will cover a distance of 5503 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Our cheapest airline available from Incheon Intl Airport to London is China Eastern. Our recent data shows that you can find tickets from as low as £351 on this airline. Additional options worth looking into are Air China and Asiana Airlines, starting at £436 and £480 round-trip. Users have found that China Eastern is 41% cheaper than the other options available to this destination.

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

    £119 is the cheapest one-way deal found within the past few days, from China Southern. You may also be able to find cheap deals on Air China and Etihad Airways, with prices starting from £131 and £243, respectively.

  • What are the most popular routes from Incheon Intl Airport to London?

    While some choose either Incheon Intl - London Gatwick or Incheon Intl - London Stansted, Incheon Intl - London Heathrow is the most popular route from Incheon Intl Airport to London.

  • What are the most reliable airlines from Incheon Intl Airport to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Incheon Intl Airport to London on time: Korean Air (80%), Virgin Atlantic (72%), Asiana Airlines (57%).

  • What are the cheapest flights from Incheon Intl Airport to London?

    Looking for the cheapest flight from Incheon Intl Airport to London? While on average our users pay £917, our data indicates the cheapest price to be £419. The most popular route (Incheon Intl - London Heathrow), is priced around £364.

  • Can I find deals for flights from Incheon Intl to London that include hotel bookings?

    Yes. In addition to deals on Incheon Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Incheon Intl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Incheon Intl to London.

  • Can I find deals for business class flights from Incheon Intl to London?

    Yes. Cheapflights offers flight deals from Incheon Intl to London 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 London?

    Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £108). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £543). 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

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Top 4 airlines flying from Incheon Intl to London

Discover the top 4 airlines that operate flights from Incheon Intl to London. 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 858,174 searches. Data last updated 7 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£351Average£682FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£436Average£571FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£480Average£547FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£717Average£814FlexibilityNo cancel feeOn-time81%
Search Korean Air 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 London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Incheon Intl to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to London from Incheon Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Incheon Intl to London with no change fees.

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

Not ready to book yet? You can track prices for flights from Incheon Intl to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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