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Cheap flights from Incheon Intl Airport to London from £155

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to London departing on 16/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

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Multiple Airlines Logo
20:50 - 10:25ICN-LTN
22h 35m2 stops
Multiple Airlines Logo
13:40 - 20:45LTN-ICN
22h 05m2 stops
£433Multiple Airlines
Find Deal
Tue, 18 Nov - Sun, 23 Nov
China Eastern Logo
12:55 - 06:30ICN-LGW
26h 35m1 stop
China Eastern Logo
10:30 - 20:40LGW-ICN
25h 10m2 stops
£433China Eastern
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Wed, 26 Nov - Sun, 30 Nov
Air China Logo
11:10 - 17:50ICN-LHR
15h 40m1 stop
Air China Logo
21:35 - 12:55LHR-ICN
30h 20m1 stop
£435Air China
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Fri, 12 Dec - Sat, 20 Dec
Air China Logo
11:10 - 17:50ICN-LHR
15h 40m1 stop
Air China Logo
21:35 - 12:55LHR-ICN
30h 20m1 stop
£436Air China
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Sun, 7 Dec - Sat, 20 Dec
China Southern Logo
22:45 - 17:20ICN-LGW
27h 35m1 stop
China Southern Logo
20:20 - 21:45LGW-ICN
16h 25m1 stop
£436China Southern
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Fri, 27 Feb - Sat, 7 Mar
China Eastern Logo
12:55 - 06:30ICN-LGW
26h 35m1 stop
China Eastern Logo
10:30 - 15:50LGW-ICN
20h 20m2 stops
£436China Eastern
Find Deal
Fri, 21 Nov - Thu, 27 Nov
China Southern Logo
09:25 - 17:55ICN-LHR
17h 30m1 stop
China Southern Logo
21:30 - 22:15LHR-ICN
15h 45m1 stop
£444China Southern
Find Deal
Fri, 27 Feb - Tue, 10 Mar
Shenzhen Airlines Logo
16:45 - 19:10ICN-LHR
35h 25m1 stop
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
£451Shenzhen Airlines
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Sat, 20 Dec - Wed, 31 Dec
Shenzhen Airlines Logo
14:55 - 19:10ICN-LHR
37h 15m1 stop
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
£453Shenzhen Airlines
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Sat, 20 Dec - Fri, 9 Jan
Lufthansa Logo
13:30 - 09:05ICN-LCY
28h 35m2 stops
Lufthansa Logo
09:50 - 10:50LCY-ICN
16h 00m1 stop
£629Lufthansa
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Wed, 26 Nov - Wed, 10 Dec

China Southern flights from Incheon Intl Airport to London

Our best China Southern deals on Incheon Intl Airport to London flight tickets
China Southern
27 Feb
ICN22:45Incheon Intl
27h 35m
1 stop
LGW17:20London Gatwick
7 Mar
LGW20:20London Gatwick
16h 25m
1 stop
ICN21:45Incheon Intl
£436
Find similar
China Southern
27 Feb
ICN09:25Incheon Intl
17h 30m
1 stop
LHR17:55London Heathrow
10 Mar
LHR21:30London Heathrow
15h 45m
1 stop
ICN22:15Incheon Intl
£444
Find similar
China Southern
15 Dec
ICN09:25Incheon Intl
18h 10m
1 stop
LHR18:35London Heathrow
4 Jan
LHR21:30London Heathrow
15h 45m
1 stop
ICN22:15Incheon Intl
£457
Find similar

China Eastern flights from Incheon Intl Airport to London

Our best China Eastern deals on Incheon Intl Airport to London flight tickets
China Eastern
26 Nov
ICN12:55Incheon Intl
26h 35m
1 stop
LGW06:30London Gatwick
30 Nov
LGW10:30London Gatwick
25h 10m
2 stops
ICN20:40Incheon Intl
£433
Find similar
China Eastern
21 Nov
ICN12:55Incheon Intl
26h 35m
1 stop
LGW06:30London Gatwick
27 Nov
LGW10:30London Gatwick
20h 20m
2 stops
ICN15:50Incheon Intl
£436
Find similar
China Eastern
22 Dec
ICN16:40Incheon Intl
22h 50m
2 stops
LGW06:30London Gatwick
31 Dec
LGW10:30London Gatwick
16h 25m
1 stop
ICN11:55Incheon Intl
£439
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Incheon Intl Airport 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, momondo users made 279,928 searches. Data last updated 30 October 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Tue 18/11

20:50-10:25

2 stops22h 35m

London Luton

Sun 23/11

13:40-20:45

2 stops22h 05m

£433

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Wed 26/11

12:55-06:30

1 stop26h 35m

London Gatwick

Sun 30/11

10:30-20:40

2 stops25h 10m

£433

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 12/12

11:10-17:50

1 stop15h 40m

London Heathrow

Sat 20/12

21:35-12:55

1 stop30h 20m

£435

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 7/12

11:10-17:50

1 stop15h 40m

London Heathrow

Sat 20/12

21:35-12:55

1 stop30h 20m

£436

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 27/2

22:45-17:20

1 stop27h 35m

London Gatwick

Sat 7/3

20:20-21:45

1 stop16h 25m

£436

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 21/11

12:55-06:30

1 stop26h 35m

London Gatwick

Thu 27/11

10:30-15:50

2 stops20h 20m

£436

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 27/2

09:25-17:55

1 stop17h 30m

London Heathrow

Tue 10/3

21:30-22:15

1 stop15h 45m

£444

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 20/12

16:45-19:10

1 stop35h 25m

London Heathrow

Wed 31/12

21:10-13:55

1 stop31h 45m

£451

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 20/12

14:55-19:10

1 stop37h 15m

London Heathrow

Fri 9/1

21:10-13:55

1 stop31h 45m

£453

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Wed 26/11

13:30-09:05

2 stops28h 35m

London City

Wed 10/12

09:50-10:50

1 stop16h 00m

£629

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Incheon Intl Airport to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Incheon Intl Airport is in May. Flight prices, which tend to average around £430, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Incheon Intl Airport averaging around £461.

What is the cheapest day to depart on your flight to London?

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £573. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Incheon Intl Airport to London for around £831.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £548. Flights at midday are often more expensive, with an average ticket price of £865.

What is the cheapest Incheon Intl to London flight route?

Fly from Incheon Intl to London Heathrow for the best Incheon Intl - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £649 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Incheon Intl Airport for as low as £586 on momondo.

What cabin class options are available on Incheon Intl to London flights?

There are 4 cabin classes available to choose from on Incheon Intl to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Incheon Intl Airport to London flights?

You could potentially save up to 15% on your flight if you consider stops on a Incheon Intl Airport to London flight.

How have Incheon Intl Airport to London flight prices changed over time?

As of October 2025, prices for Incheon Intl Airport to London flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to London

Are you open to changing your travel dates? Check out the ideal times to fly from Incheon Intl Airport to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Incheon Intl Airport to London (ICN to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to London

Best price found

£287

Fastest flight time

11h 30m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Incheon Intl Airport in the past 72 hours is £287. The best return flight deal from Incheon Intl Airport to London found on momondo in the last 72 hours is £510.
The fastest flight from Incheon Intl Airport to London takes 11h 30m
Direct flights go from Incheon Intl Airport to London every day.
There is 1 airport near London: London Heathrow (LHR)
Search flight deals

  • How far is Incheon Intl to London by plane?

    London is 5492.6 mi away from Incheon Intl. 15h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Incheon Intl Airport to London?

    Prices for flights from Incheon Intl Airport to London refresh daily.

  • How many operators does momondo search for flights from Incheon Intl Airport to London?

  • How old do you have to be to fly from Incheon Intl Airport to London?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Incheon Intl Airport to London?

  • What is the most popular airline from Incheon Intl Airport to London?

Best airlines flying from Incheon Intl Airport to London

Compare and see reviews for airlines that fly from Incheon Intl Airport to London with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £359Free CancellationRating
7.2
174 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom £510Free CancellationRating
8.2
483 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £733Free CancellationRating
8.4
1,155 reviews
Search Korean Air flights

  • Korean Air Flights From Incheon Intl Airport to London

    Across 8 Korean Air flights from Incheon Intl Airport to London this week, the average price was £833, with the best Korean Air deals starting from £733 round-trip. 1,155 users have rated Korean Air on momondo, with an average score of 8.4/10.

  • Asiana Airlines Flights From Incheon Intl Airport to London

    Across 483 Asiana Airlines reviews on momondo, the average score is 8.2/10. Asiana Airlines flies from Incheon Intl Airport to London about 7 times each week, with ticket deals ranging from £510 to £751. Price data is based on momondo searches in the last 72 hours.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Dover
Hayes
Chelmsford
Worthing
Dartford
Ramsgate
Bedford
Stansted

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Seoul.

Can I find flights from Seoul to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seoul to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Seoul to London?

momondo helps you find the best flight between Seoul and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seoul to London right now. Can momondo alert me if prices change?

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport