Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Incheon Intl Airport to London from £126

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 23/12. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LON
15 ינו' — 22 ינו'1
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

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 16 דצמבר 2025.

ג' 23/1212:55ICN - LHR
1 stop37h 35mMultiple Airlines
ד' 31/1217:40LHR - ICN
1 stop33h 00mMultiple Airlines
Deal found 13/12£405
ו' 19/1222:45ICN - LGW
1 stop27h 35mChina Southern
ג' 13/120:20LGW - ICN
1 stop16h 25mChina Southern
Deal found 12/12£405
ד' 24/1216:15ICN - LGW
1 stop23h 10mChina Southern
ג' 13/120:20LGW - ICN
1 stop16h 25mChina Southern
Deal found 14/12£406
ד' 24/1212:55ICN - LHR
1 stop37h 35mMultiple Airlines
ב' 29/1221:00LHR - ICN
2 stops38h 35mMultiple Airlines
Deal found 15/12£407
ה' 18/1216:10ICN - LHR
1 stop34h 20mMultiple Airlines
ג' 6/122:10LHR - ICN
1 stop29h 45mMultiple Airlines
Deal found 15/12£411
ה' 18/1216:10ICN - LHR
1 stop34h 20mMultiple Airlines
ש' 3/121:35LHR - ICN
1 stop30h 20mMultiple Airlines
Deal found 12/12£412
ב' 29/1216:10ICN - LGW
1 stop23h 20mMultiple Airlines
ב' 11/512:00LGW - ICN
1 stop17h 55mMultiple Airlines
Deal found 12/12£413
ה' 25/1216:20ICN - LGW
1 stop30h 40mChina Eastern
ה' 1/110:30LGW - ICN
1 stop19h 50mChina Eastern
Deal found 12/12£413
ב' 22/1216:10ICN - LGW
1 stop23h 20mChina Eastern
ד' 31/1217:00LGW - ICN
1 stop33h 55mChina Eastern
Deal found 12/12£414
ד' 24/1214:30ICN - LHR
1 stop36h 00mMultiple Airlines
ד' 31/1217:40LHR - ICN
1 stop33h 00mMultiple Airlines
Deal found 13/12£415
ש' 27/1212:55ICN - LHR
1 stop37h 35mMultiple Airlines
ש' 3/121:35LHR - ICN
1 stop30h 20mMultiple Airlines
Deal found 15/12£419
ג' 23/1210:55ICN - LHR
1 stop40h 40mChina Southern
ה' 8/121:30LHR - ICN
1 stop15h 45mChina Southern
Deal found 15/12£423

Find 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 16 דצמבר 2025.

Round-trip from

£405

One-way from

£126

Popular in

October

Cheapest in

May

Average price

£545

Good round-trip deal

£486 or less

Good one-way deal

£375 or less
China Southern
  • China Southern
  • 20/1-23/1
  • 2 total stops
  • 33h 20m total
  • Incheon to London
Search Deals
China Eastern
  • China Eastern
  • 24/12
  • 1 total stop
  • 37h 35m total
  • Incheon to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Incheon Intl to London (LON).
Search Deals
Price to beat on a one-way flight from Incheon Intl to London (LON).
Search Deals

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 16 דצמבר 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 - LGW

ICNLGW

Incheon Intl

ג' 3/3

12:55-14:00

1 stop34h 05m

London Gatwick

ב' 16/3

17:00-20:45

1 stop18h 45m

£407

IncheonLondon

ICN - SEN

ICNSEN

Incheon Intl

ד' 14/1

11:10-12:00

2 stops33h 50m

London Southend

א' 18/1

07:10-13:20

2 stops21h 10m

£429

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

ב' 19/1

11:10-13:25

2 stops35h 15m

London Luton

ב' 26/1

07:50-21:55

2 stops29h 05m

£432

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

ש' 24/1

17:50-06:40

1 stop21h 50m

London Heathrow

ג' 24/2

08:50-21:55

1 stop28h 05m

£469

IncheonLondon

ICN - SEN

ICNSEN

Incheon Intl

א' 11/1

14:50-10:30

2 stops28h 40m

London Southend

ו' 16/1

10:00-16:35

2 stops21h 35m

£477

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

ו' 27/2

23:45-18:30

2 stops27h 45m

London Heathrow

ג' 3/3

10:35-19:00

2 stops23h 25m

£481

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

א' 28/12

23:05-13:50

1 stop23h 45m

London Heathrow

ב' 12/1

08:55-10:30

1 stop16h 35m

£491

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

ו' 23/1

23:45-09:20

1 stop18h 35m

London Heathrow

ד' 28/1

19:50-19:00

2 stops38h 10m

£499

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

ב' 9/3

23:45-16:00

1 stop25h 15m

London Heathrow

ג' 17/3

10:35-19:00

2 stops23h 25m

£499

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

ד' 25/2

23:45-09:20

1 stop18h 35m

London Heathrow

ה' 5/3

10:35-19:00

2 stops23h 25m

£499

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 60 results
1
2
3
...
6

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 12 December 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, September is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £109). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £558). 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 16 דצמבר 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 25% versus a flight at midday.

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 16 דצמבר 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).

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 £371.

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 16 דצמבר 2025.
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
493 reviews
Check prices

Overall

8.2

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
Asiana Airlines
8.2
Very Good
493 reviews
Asiana Airlines
8.2
Very Good
493 reviews
Check prices

Overall

8.2

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
China Southern
7.5
Good
122 reviews
Asiana Airlines
8.2
Very Good
493 reviews
Check prices

Overall

8.2

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
China Eastern
7.2
Good
178 reviews
Asiana Airlines
8.2
Very Good
493 reviews
Check prices

Overall

8.2

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
Air China
7.2
Good
127 reviews
Asiana Airlines
8.2
Very Good
493 reviews
Check prices

Overall

8.2

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
Lufthansa
6.8
Okay
7,631 reviews
Asiana Airlines
8.2
Very Good
493 reviews
Check prices

Overall

8.2

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.

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, Etihad Airways, or Scandinavian Airlines 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 £355 on this airline. Additional options worth looking into are Air China and Asiana Airlines, starting at £441 and £486 round-trip. Users have found that China Eastern is 40% cheaper than the other options available to this destination.

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

    £120 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 £135 and £245, 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: Virgin Atlantic (61%), Korean Air (55%), Asiana Airlines (46%).

  • 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 £486, our data indicates the cheapest price to be £255. The most popular route (Incheon Intl - London Heathrow), is priced around £354.

  • 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 £109). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £558). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Hayes
Watford
Crawley
Winchester
Bedford
Romford
Chichester
Eastbourne
Guildford
Ipswich

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 16 דצמבר 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£355Average£690FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£441Average£578FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£486Average£553FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£725Average£824FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.