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Cheap flights from Incheon Intl Airport to London from £228

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LON
24 Aug — 31 Aug1
1 adult

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 Thursday or Monday 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 19 August 2025.

Round-trip from

£501

One-way from

£228

Popular in

September

Cheapest in

May

Average price

£650

Good round-trip deal

£814 or less

Good one-way deal

£469 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 3/11-11/11
  • 3 total stops
  • 45h 05m total
  • Incheon to London
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China Southern
  • China Southern
  • 10/10
  • 1 total stop
  • 16h 40m total
  • Incheon to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£93 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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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

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 19 August 2025.

Thu 20/1111:00ICN - LTN
1 stop18h 55mMultiple Airlines
Thu 27/1120:10LTN - ICN
2 stops30h 45mMultiple Airlines
Deal found 18/8£501
Mon 3/1123:45ICN - LHR
2 stops28h 05mScandinavian Airlines
Thu 13/1106:40LHR - ICN
1 stop27h 20mScandinavian Airlines
Deal found 17/8£501
Fri 12/921:15ICN - LGW
1 stop29h 15mChina Southern
Fri 19/912:00LGW - ICN
1 stop25h 50mChina Southern
Deal found 18/8£501
Thu 20/1111:00ICN - LTN
1 stop18h 55mMultiple Airlines
Wed 26/1120:10LTN - ICN
2 stops30h 45mMultiple Airlines
Deal found 17/8£502
Wed 3/909:25ICN - LHR
1 stop16h 40mChina Southern
Wed 10/921:00LHR - ICN
1 stop17h 10mChina Southern
Deal found 16/8£502
Tue 9/913:05ICN - LGW
1 stop25h 30mAir China
Thu 11/912:35LGW - ICN
1 stop25h 10mAir China
Deal found 18/8£502
Sun 7/916:45ICN - LHR
1 stop34h 15mMultiple Airlines
Sat 20/921:20LHR - ICN
1 stop30h 35mMultiple Airlines
Deal found 18/8£502
Wed 3/916:35ICN - LGW
1 stop21h 55mMultiple Airlines
Wed 24/921:50LGW - ICN
2 stops42h 50mMultiple Airlines
Deal found 17/8£502
Sat 15/1109:25ICN - LHR
1 stop17h 30mChina Southern
Sat 22/1121:30LHR - ICN
1 stop15h 55mChina Southern
Deal found 18/8£503
Mon 1/921:15ICN - LGW
1 stop29h 15mChina Southern
Mon 8/912:00LGW - ICN
1 stop25h 50mChina Southern
Deal found 18/8£503
Mon 3/1123:45ICN - LHR
2 stops28h 05mScandinavian Airlines
Sun 9/1106:40LHR - ICN
2 stops27h 20mScandinavian Airlines
Deal found 17/8£504
Sun 7/913:05ICN - LGW
1 stop25h 30mAir China
Thu 11/911:25LGW - ICN
2 stops26h 20mAir China
Deal found 17/8£504

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 19 August 2025.
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 - LHR

ICNLHR

Incheon Intl

Fri 16/1

23:45-09:20

1 stop18h 35m

London Heathrow

Mon 26/1

17:30-19:00

2 stops40h 30m

£501

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 7/11

23:45-16:00

1 stop25h 15m

London Heathrow

Sat 15/11

15:35-19:00

2 stops42h 25m

£501

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 16/1

23:45-09:20

1 stop18h 35m

London Heathrow

Sat 24/1

15:35-19:00

2 stops42h 25m

£501

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 3/11

23:45-18:50

2 stops28h 05m

London Heathrow

Tue 11/11

17:00-19:00

1 stop17h 00m

£501

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 31/12

23:45-09:20

1 stop18h 35m

London Heathrow

Sun 11/1

06:40-19:00

2 stops27h 20m

£501

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 17/12

23:45-09:20

1 stop18h 35m

London Heathrow

Thu 8/1

13:55-19:00

2 stops20h 05m

£504

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 3/11

23:45-18:50

2 stops28h 05m

London Heathrow

Sun 9/11

06:40-19:00

2 stops27h 20m

£504

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 7/11

23:45-09:20

1 stop18h 35m

London Heathrow

Thu 13/11

09:55-19:00

2 stops24h 05m

£504

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 19/1

13:05-20:50

1 stop16h 45m

London Heathrow

Sat 31/1

06:35-11:15

1 stop19h 40m

£508

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 7/11

11:05-15:25

1 stop37h 20m

London Heathrow

Wed 12/11

21:25-21:45

1 stop39h 20m

£511

Flights are sorted by cheapest return flights first.

Deals found on 18/8

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 8 August 2025.

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, January is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £112). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £164). 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 19 August 2025.

When flying from Incheon Intl Airport to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 33% versus a flight at midday.

What is the cheapest day to fly from Incheon Intl Airport to London?

Use this chart to determine the cheapest time to fly return from Incheon Intl to London. Price data was last updated on 20 October 2024.

Travellers seeking maximum savings on their Incheon Intl Airport to London flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 19 August 2025.

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).

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 Beijing (PEK) have the shortest average one-way travel time for one-stop routes: 15h 46m.

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.

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 19 August 2025.
Get a feel of what it's like to fly with Asiana Airlines, China Southern, andAir China 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
476 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Comfort

8.1

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Jacob,Jul 2025

ICN - JFK

I flew business calls Asiana, everything was great and good! I must say that the service at the Asian business class lounge prior to the flight is very poor, the staff are very cold and not welcome and I asked for some help in getting a food without salt ...I was looked upon as if I ... I am traveling a lot business , and I se people complained a lot in asiana lounge services. Jacob
Asiana Airlines
8.2
Very Good
476 reviews
Asiana Airlines
8.2
Very Good
476 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Comfort

8.1

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Jacob,Jul 2025

ICN - JFK

I flew business calls Asiana, everything was great and good! I must say that the service at the Asian business class lounge prior to the flight is very poor, the staff are very cold and not welcome and I asked for some help in getting a food without salt ...I was looked upon as if I ... I am traveling a lot business , and I se people complained a lot in asiana lounge services. Jacob
China Southern
7.6
Good
106 reviews
Asiana Airlines
8.2
Very Good
476 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Comfort

8.1

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Jacob,Jul 2025

ICN - JFK

I flew business calls Asiana, everything was great and good! I must say that the service at the Asian business class lounge prior to the flight is very poor, the staff are very cold and not welcome and I asked for some help in getting a food without salt ...I was looked upon as if I ... I am traveling a lot business , and I se people complained a lot in asiana lounge services. Jacob
Air China
7.3
Good
95 reviews
Asiana Airlines
8.2
Very Good
476 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Comfort

8.1

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Jacob,Jul 2025

ICN - JFK

I flew business calls Asiana, everything was great and good! I must say that the service at the Asian business class lounge prior to the flight is very poor, the staff are very cold and not welcome and I asked for some help in getting a food without salt ...I was looked upon as if I ... I am traveling a lot business , and I se people complained a lot in asiana lounge services. Jacob
China Eastern
7.2
Good
160 reviews
Asiana Airlines
8.2
Very Good
476 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Comfort

8.1

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Jacob,Jul 2025

ICN - JFK

I flew business calls Asiana, everything was great and good! I must say that the service at the Asian business class lounge prior to the flight is very poor, the staff are very cold and not welcome and I asked for some help in getting a food without salt ...I was looked upon as if I ... I am traveling a lot business , and I se people complained a lot in asiana lounge services. Jacob
Lufthansa
6.8
Okay
7,334 reviews
Asiana Airlines
8.2
Very Good
476 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Comfort

8.1

Overall

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Jacob,Jul 2025

ICN - JFK

I flew business calls Asiana, everything was great and good! I must say that the service at the Asian business class lounge prior to the flight is very poor, the staff are very cold and not welcome and I asked for some help in getting a food without salt ...I was looked upon as if I ... I am traveling a lot business , and I se people complained a lot in asiana lounge services. Jacob

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 17h 10m. Fly via Scandinavian Airlines, Emirates, or KLM to get the fastest option. Airlines will cover a distance of 5487 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 £400 and £642 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?

    £229 is the cheapest one-way deal found within the past few days, from Malaysia Airlines. You may also be able to find cheap deals on Etihad Airways and China Eastern, with prices starting from £230 and £233, 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 (78%), Virgin Atlantic (73%), Asiana Airlines (53%).

  • 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 £913, our data indicates the cheapest price to be £439. The most popular route (Incheon Intl - London Heathrow), is priced around £346.

  • 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, January is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £112). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £164). 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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Browse thousands of different options on Cheapflights for your next trip

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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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£351Average£681FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£400Average£649FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£642Average£740FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£666Average£839FlexibilityNo 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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