Cheap flights from Incheon Intl Airport to London from £243

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 14/10. 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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0 bags

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Find the cheapest flights from Incheon Intl Airport to London

Cheap return flights

 Logo
13:05 - 16:55ICN-LHR
35h 50m1 stop
 Logo
21:00 - 11:00LHR-ICN
29h 00m2 stops
Sat, 25 Oct - Sat, 1 Nov
 Logo
13:15 - 06:30ICN-LGW
26h 15m2 stops
 Logo
06:55 - 13:00LGW-ICN
21h 05m2 stops
Wed, 12 Nov - Wed, 26 Nov
China Eastern Logo
12:55 - 06:30ICN-LGW
25h 35m1 stop
China Eastern Logo
11:35 - 15:25LGW-ICN
19h 50m1 stop
£518China Eastern
Find Deal
Sat, 18 Oct - Fri, 24 Oct
China Eastern Logo
12:55 - 06:30ICN-LGW
25h 35m1 stop
China Eastern Logo
11:35 - 17:25LGW-ICN
21h 50m1 stop
£519China Eastern
Find Deal
Mon, 20 Oct - Fri, 24 Oct
Lufthansa Logo
13:05 - 20:50ICN-LHR
16h 45m1 stop
Lufthansa Logo
11:30 - 10:50LHR-ICN
14h 20m1 stop
£523Lufthansa
Find Deal
Mon, 19 Jan - Fri, 23 Jan
Lufthansa Logo
13:05 - 20:50ICN-LHR
16h 45m1 stop
Lufthansa Logo
07:30 - 10:50LHR-ICN
18h 20m1 stop
£523Lufthansa
Find Deal
Tue, 3 Mar - Thu, 5 Mar
China Southern Logo
22:45 - 17:20ICN-LGW
27h 35m1 stop
China Southern Logo
20:20 - 10:20LGW-ICN
29h 00m2 stops
£538China Southern
Find Deal
Mon, 3 Nov - Tue, 11 Nov
China Southern Logo
21:15 - 18:30ICN-LGW
29h 15m1 stop
China Southern Logo
20:20 - 10:20LGW-ICN
29h 00m2 stops
£541China Southern
Find Deal
Fri, 24 Oct - Tue, 28 Oct
Air China Logo
13:10 - 06:55ICN-LGW
26h 45m2 stops
Air China Logo
11:40 - 21:55LGW-ICN
25h 15m2 stops
£548Air China
Find Deal
Sun, 2 Nov - Thu, 13 Nov
Air China Logo
14:55 - 20:15ICN-LHR
37h 20m1 stop
Air China Logo
22:00 - 13:10LHR-ICN
31h 10m2 stops
£549Air China
Find Deal
Mon, 13 Oct - Sat, 18 Oct

Scandinavian Airlines flights from Incheon Intl Airport to London

Our best Scandinavian Airlines deals on Incheon Intl Airport to London flight tickets
Scandinavian Airlines
12 Nov
ICN23:45Incheon Intl
18h 35m
1 stop
LHR09:20London Heathrow
26 Nov
LHR19:50London Heathrow
38h 10m
2 stops
ICN19:00Incheon Intl
Scandinavian Airlines
22 Oct
ICN23:45Incheon Intl
22h 50m
2 stops
LHR14:35London Heathrow
1 Nov
LHR15:35London Heathrow
42h 25m
2 stops
ICN19:00Incheon Intl
Scandinavian Airlines
3 Nov
ICN23:45Incheon Intl
23h 50m
2 stops
LHR14:35London Heathrow
10 Nov
LHR19:50London Heathrow
38h 10m
2 stops
ICN19:00Incheon Intl

Lufthansa flights from Incheon Intl Airport to London

Our best Lufthansa deals on Incheon Intl Airport to London flight tickets
Lufthansa
19 Jan
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
23 Jan
LHR11:30London Heathrow
14h 20m
1 stop
ICN10:50Incheon Intl
Lufthansa
3 Mar
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
5 Mar
LHR07:30London Heathrow
18h 20m
1 stop
ICN10:50Incheon Intl
Lufthansa
8 Feb
ICN13:05Incheon Intl
28h 00m
2 stops
LHR08:05London Heathrow
17 Feb
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl

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 12 September 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 - LHR

ICNLHR

Incheon Intl

Sat 25/10

13:05-16:55

1 stop35h 50m

London Heathrow

Sat 1/11

21:00-11:00

2 stops29h 00m

£514

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Wed 12/11

13:15-06:30

2 stops26h 15m

London Gatwick

Wed 26/11

06:55-13:00

2 stops21h 05m

£514

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Sat 18/10

12:55-06:30

1 stop25h 35m

London Gatwick

Fri 24/10

11:35-15:25

1 stop19h 50m

£518

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Mon 20/10

12:55-06:30

1 stop25h 35m

London Gatwick

Fri 24/10

11:35-17:25

1 stop21h 50m

£519

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 19/1

13:05-20:50

1 stop16h 45m

London Heathrow

Fri 23/1

11:30-10:50

1 stop14h 20m

£523

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

13:05-20:50

1 stop16h 45m

London Heathrow

Thu 5/3

07:30-10:50

1 stop18h 20m

£523

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Mon 3/11

22:45-17:20

1 stop27h 35m

London Gatwick

Tue 11/11

20:20-10:20

2 stops29h 00m

£538

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 24/10

21:15-18:30

1 stop29h 15m

London Gatwick

Tue 28/10

20:20-10:20

2 stops29h 00m

£541

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Sun 2/11

13:10-06:55

2 stops26h 45m

London Gatwick

Thu 13/11

11:40-21:55

2 stops25h 15m

£548

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 13/10

14:55-20:15

1 stop37h 20m

London Heathrow

Sat 18/10

22:00-13:10

2 stops31h 10m

£549

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 typical price of a round-trip flight between Incheon Intl Airport and London?

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 £423, 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 £451.

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 £667. 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 £845.

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 £535. Flights at midday are often more expensive, with an average ticket price of £818.

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 £633 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 £543 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.

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

As of September 2025, prices for Incheon Intl Airport to London flights are approximately 30% 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

£422

Fastest flight time

14h 25m

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 £422. The best return flight deal from Incheon Intl Airport to London found on momondo in the last 72 hours is £972.
The fastest flight from Incheon Intl Airport to London takes 14h 25m
Direct flights go from Incheon Intl Airport to London every day.
There is 1 airport near London: London Heathrow (LHR)
  • How far is Incheon Intl to London by plane?

    London is 5492.6 mi away from Incheon Intl. 14h 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 £351Free CancellationRating
7.2
165 reviews
Search China Eastern flights
Air ChinaPriceFrom £399Free CancellationRating
7.2
99 reviews
Search Air China flights
Asiana AirlinesPriceFrom £641Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £665Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights
  • Korean Air Flights From Incheon Intl Airport to London

    Across 7 Korean Air flights from Incheon Intl Airport to London this week, the average price was £1,136, with the best Korean Air deals starting from £901 round-trip. 1,139 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 479 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 £869 to £1,002. 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
Luton
Milton Keynes
Maidstone
Gatwick
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Colchester
Worthing
Dover
Chelmsford
Hayes
Dartford
Winchester
Hounslow
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.

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1 adult
Sun 12/10
Sun 19/10

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