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Cheap flights from Seoul to London from £156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to London departing on 13/11. 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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China Eastern Logo
20:50 - 17:30GMP-LHR
29h 40m1 stop
China Eastern Logo
21:00 - 11:00LHR-GMP
29h 00m1 stop
£408China Eastern
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Mon, 17 Nov - Thu, 20 Nov
Multiple Airlines Logo
14:25 - 15:55GMP-LHR
34h 30m1 stop
Multiple Airlines Logo
21:00 - 11:00LHR-GMP
29h 00m1 stop
£409Multiple Airlines
Find Deal
Tue, 11 Nov - Sun, 16 Nov
Air China Logo
14:25 - 15:55GMP-LHR
34h 30m1 stop
Air China Logo
20:25 - 13:05LHR-GMP
31h 40m1 stop
£411Air China
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Tue, 11 Nov - Tue, 18 Nov
China Eastern Logo
20:50 - 17:30GMP-LHR
29h 40m1 stop
China Eastern Logo
21:00 - 11:00LHR-GMP
29h 00m1 stop
£413China Eastern
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Tue, 11 Nov - Tue, 18 Nov
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
£416China Southern
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Thu, 25 Dec - Sun, 4 Jan
Air China Logo
14:25 - 15:55GMP-LHR
34h 30m1 stop
Air China Logo
20:25 - 13:05LHR-GMP
31h 40m1 stop
£417Air China
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Wed, 12 Nov - Mon, 17 Nov
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
£417China Southern
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Thu, 25 Dec - Sun, 4 Jan
Shenzhen Airlines Logo
16:45 - 19:10ICN-LHR
35h 25m1 stop
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
£455Shenzhen Airlines
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Sat, 20 Dec - Fri, 9 Jan
Etihad Airways Logo
23:45 - 06:40ICN-LHR
39h 55m1 stop
Etihad Airways Logo
08:50 - 10:45LHR-ICN
16h 55m1 stop
£458Etihad Airways
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Wed, 3 Dec - Wed, 10 Dec
Etihad Airways Logo
17:50 - 18:10ICN-LHR
33h 20m1 stop
Etihad Airways Logo
08:50 - 10:45LHR-ICN
16h 55m1 stop
£468Etihad Airways
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Thu, 4 Dec - Wed, 10 Dec

China Eastern flights from Seoul to London

Our best China Eastern deals on Seoul to London flight tickets
China Eastern
17 Nov
GMP20:50Seoul Gimpo Intl
29h 40m
1 stop
LHR17:30London Heathrow
20 Nov
LHR21:00London Heathrow
29h 00m
1 stop
GMP11:00Seoul Gimpo Intl
£408
Find similar
China Eastern
11 Nov
GMP20:50Seoul Gimpo Intl
29h 40m
1 stop
LHR17:30London Heathrow
18 Nov
LHR21:00London Heathrow
29h 00m
1 stop
GMP11:00Seoul Gimpo Intl
£413
Find similar
China Eastern
18 Nov
GMP20:50Seoul Gimpo Intl
29h 40m
1 stop
LHR17:30London Heathrow
21 Nov
LHR21:00London Heathrow
29h 00m
1 stop
GMP11:00Seoul Gimpo Intl
£414
Find similar

Air China flights from Seoul to London

Our best Air China deals on Seoul to London flight tickets
Air China
11 Nov
GMP14:25Seoul Gimpo Intl
34h 30m
1 stop
LHR15:55London Heathrow
18 Nov
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£411
Find similar
Air China
12 Nov
GMP14:25Seoul Gimpo Intl
34h 30m
1 stop
LHR15:55London Heathrow
17 Nov
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£417
Find similar
Air China
21 Nov
GMP14:25Seoul Gimpo Intl
34h 30m
1 stop
LHR15:55London Heathrow
29 Nov
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£420
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seoul 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 31 October 2025.
Use the filters below to find and compare flights from Seoul to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 17/11

20:50-17:30

1 stop29h 40m

London Heathrow

Thu 20/11

21:00-11:00

1 stop29h 00m

£408

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 11/11

14:25-15:55

1 stop34h 30m

London Heathrow

Sun 16/11

21:00-11:00

1 stop29h 00m

£409

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 11/11

14:25-15:55

1 stop34h 30m

London Heathrow

Tue 18/11

20:25-13:05

1 stop31h 40m

£411

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 11/11

20:50-17:30

1 stop29h 40m

London Heathrow

Tue 18/11

21:00-11:00

1 stop29h 00m

£413

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/12

13:30-17:55

1 stop37h 25m

London Heathrow

Sun 4/1

21:30-12:25

1 stop29h 55m

£416

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 12/11

14:25-15:55

1 stop34h 30m

London Heathrow

Mon 17/11

20:25-13:05

1 stop31h 40m

£417

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/12

13:30-17:55

1 stop37h 25m

London Heathrow

Sun 4/1

21:30-12:25

1 stop29h 55m

£417

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 20/12

16:45-19:10

1 stop35h 25m

London Heathrow

Fri 9/1

21:10-13:55

1 stop31h 45m

£455

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 3/12

23:45-06:40

1 stop39h 55m

London Heathrow

Wed 10/12

08:50-10:45

1 stop16h 55m

£458

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 4/12

17:50-18:10

1 stop33h 20m

London Heathrow

Wed 10/12

08:50-10:45

1 stop16h 55m

£468

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 Seoul 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 Seoul and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Seoul is in February. Flight prices, which tend to average around £486, are often lower during this time because this is during the off-season. The month of June is another great option to travel to London, with average flight prices from Seoul averaging around £489.

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 £575. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £834.

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 £550. Flights at midday are often more expensive, with an average ticket price of £868.

What is the cheapest Seoul to London flight route?

Fly from Incheon Intl to London Heathrow for the best Seoul - 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 Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £651 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 Seoul for as low as £588 on momondo.

What cabin class options are available on Seoul to London flights?

There are 4 cabin classes available to choose from on Seoul 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 Seoul to London flights?

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

How have Seoul to London flight prices changed over time?

As of October 2025, prices for Seoul to London flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to London

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

Cheap Seoul to London (SEL to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to London

Best price found

£288

Fastest flight time

11h 30m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Seoul in the past 72 hours is £288. The best return flight deal from Seoul to London found on momondo in the last 72 hours is £511.
The fastest flight from Seoul to London takes 11h 30m
Direct flights go from Seoul to London every day.
There is 1 airport near London: London Heathrow (LHR)
Search flight deals

  • How far is Seoul to London by plane?

    Seoul and London are 5501.4 mi apart from one another. Flights usually cover this in 15h 40m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seoul to London?

    Prices for flights from Seoul to London refresh daily.

  • How many operators does momondo search for flights from Seoul to London?

  • How old do you have to be to fly from Seoul to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul 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 Seoul to London?

  • What is the most popular airline from Seoul to London?

Best airlines flying from Seoul to London

Compare and see reviews for airlines that fly from Seoul to London with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £360Free CancellationRating
7.2
174 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom £512Free CancellationRating
8.2
484 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £736Free CancellationRating
8.4
1,155 reviews
Search Korean Air flights

  • Korean Air Flights From Seoul to London

    Korean Air is one of the most popular airlines flying from Seoul to London, operating 8 flights/week on average for this route. A good Korean Air flight deal for Seoul to London starts from £736 round-trip, up to an average price of £836. Our users have rated Korean Air at 8.4/10.

  • Asiana Airlines Flights From Seoul to London

    Another popular option for Seoul to London flights is Asiana Airlines (8.2/10, 484 ratings). Asiana Airlines flies from Seoul to London around 7 times per week, with deals starting from £512 round-trip and rising to an average price of around £754.

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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to London from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Seoul to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Seoul to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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