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Cheap flights from Seoul to London from £176

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 11/11. 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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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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Mon, 24 Nov - Tue, 2 Dec
Air China Logo
14:25 - 15:55GMP-LHR
34h 30m1 stop
Air China Logo
20:25 - 13:05LHR-GMP
31h 40m1 stop
£411Air China
Find Deal
Mon, 24 Nov - Tue, 2 Dec
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
£420China Southern
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Thu, 20 Nov - Thu, 27 Nov
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
£452China Southern
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Thu, 26 Feb - Sun, 1 Mar
Multiple Airlines Logo
00:10 - 15:25ICN-LHR
24h 15m1 stop
Multiple Airlines Logo
21:30 - 22:15LHR-ICN
15h 45m1 stop
£481Multiple Airlines
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Wed, 19 Nov - Thu, 27 Nov
Multiple Airlines Logo
17:50 - 15:55ICN-LHR
31h 05m1 stop
Multiple Airlines Logo
21:10 - 15:45LHR-ICN
33h 35m1 stop
£487Multiple Airlines
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Tue, 2 Dec - Wed, 17 Dec
China Eastern Logo
20:50 - 17:30ICN-LHR
29h 40m2 stops
China Eastern Logo
21:00 - 13:15LHR-ICN
31h 15m2 stops
£488China Eastern
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Wed, 12 Nov - Mon, 17 Nov
China Eastern Logo
20:50 - 17:30ICN-LHR
29h 40m2 stops
China Eastern Logo
21:00 - 11:00LHR-ICN
29h 00m2 stops
£491China Eastern
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Tue, 4 Nov - Thu, 13 Nov
Asiana Airlines Logo
12:25 - 18:05ICN-LHR
14h 40mdirect
Asiana Airlines Logo
20:10 - 17:50LHR-ICN
12h 40mdirect
£493Asiana Airlines
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Tue, 4 Nov - Thu, 13 Nov
Asiana Airlines Logo
12:25 - 18:05ICN-LHR
14h 40mdirect
Asiana Airlines Logo
20:10 - 17:50LHR-ICN
12h 40mdirect
£495Asiana Airlines
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Wed, 3 Dec - Wed, 10 Dec

Air China flights from Seoul to London Heathrow Airport

Our best Air China deals on Seoul to London Heathrow Airport flight tickets
Air China
24 Nov
GMP14:25Seoul Gimpo Intl
34h 30m
1 stop
LHR15:55London Heathrow
2 Dec
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£411
Find similar
Air China
24 Nov
GMP14:25Seoul Gimpo Intl
34h 30m
1 stop
LHR15:55London Heathrow
2 Dec
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£411
Find similar
Air China
4 Nov
GMP14:25Seoul Gimpo Intl
34h 30m
1 stop
LHR15:55London Heathrow
12 Nov
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£415
Find similar

Malaysia Airlines flights from Seoul to London Heathrow Airport

Our best Malaysia Airlines deals on Seoul to London Heathrow Airport flight tickets
Malaysia Airlines
26 Nov
ICN00:10Incheon Intl
24h 15m
1 stop
LHR15:25London Heathrow
2 Dec
LHR10:25London Heathrow
35h 05m
1 stop
ICN06:30Incheon Intl
£486
Find similar
Malaysia Airlines
22 Oct
ICN00:10Incheon Intl
24h 25m
1 stop
LHR16:35London Heathrow
21 Nov
LHR10:25London Heathrow
35h 05m
1 stop
ICN06:30Incheon Intl
£493
Find similar
Malaysia Airlines
25 Feb
ICN00:10Incheon Intl
24h 15m
1 stop
LHR15:25London Heathrow
26 Feb
LHR21:25London Heathrow
24h 05m
1 stop
ICN06:30Incheon Intl
£504
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momondo Fare Finder

 
Customise your flight search to find flights from Seoul to London Heathrow Airport 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 21 October 2025.
Use the filters below to find and compare flights from Seoul to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 24/11

14:25-15:55

1 stop34h 30m

London Heathrow

Tue 2/12

20:25-13:05

1 stop31h 40m

£411

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 24/11

14:25-15:55

1 stop34h 30m

London Heathrow

Tue 2/12

20:25-13:05

1 stop31h 40m

£411

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 20/11

13:30-17:55

1 stop37h 25m

London Heathrow

Thu 27/11

21:30-12:25

1 stop29h 55m

£420

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 26/2

13:30-17:55

1 stop37h 25m

London Heathrow

Sun 1/3

21:30-12:25

1 stop29h 55m

£452

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 19/11

00:10-15:25

1 stop24h 15m

London Heathrow

Thu 27/11

21:30-22:15

1 stop15h 45m

£481

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 2/12

17:50-15:55

1 stop31h 05m

London Heathrow

Wed 17/12

21:10-15:45

1 stop33h 35m

£487

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 12/11

20:50-17:30

2 stops29h 40m

London Heathrow

Mon 17/11

21:00-13:15

2 stops31h 15m

£488

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 4/11

20:50-17:30

2 stops29h 40m

London Heathrow

Thu 13/11

21:00-11:00

2 stops29h 00m

£491

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 4/11

12:25-18:05

Nonstop14h 40m

London Heathrow

Thu 13/11

20:10-17:50

Nonstop12h 40m

£493

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 3/12

12:25-18:05

Nonstop14h 40m

London Heathrow

Wed 10/12

20:10-17:50

Nonstop12h 40m

£495

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 Heathrow Airport

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 Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, March is the cheapest month to fly from Seoul to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £542. The month of December is another great option to travel to London Heathrow Airport, with average flight prices from Seoul averaging around £552.

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

On average, the least expensive day to fly to London Heathrow Airport from Seoul is on a Thursday. momondo users have found tickets for Thursday departures for as low as £564. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £852.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Seoul to London Heathrow Airport in the evening for as low as £505. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £852 on average. Flights to London Heathrow Airport from Seoul at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Seoul to London Heathrow flight route?

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

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

You are more likely to see cheaper flights to London Heathrow Airport from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £639 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Seoul for as low as £575 on momondo.

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

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

How have Seoul to London Heathrow Airport flight prices changed over time?

As of October 2025, prices for Seoul to London Heathrow Airport flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to London Heathrow Airport

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

Cheap Seoul to London Heathrow Airport (SEL to LHR) flight deals and tips

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

Best price found

£282

Fastest flight time

14h 40m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Seoul in the past 72 hours is £282. The best return flight deal from Seoul to London Heathrow Airport found on momondo in the last 72 hours is £503.
The fastest flight from Seoul to London Heathrow Airport takes 14h 40m
Direct flights go from Seoul to London Heathrow Airport every day.
Search flight deals

  • How far is Seoul to London Heathrow by plane?

    The distance between Seoul and London Heathrow is about 5512.0 mi. By plane, this route typically takes 14h 40m.

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

    Prices for flights from Seoul to London Heathrow Airport refresh daily.

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

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

    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 Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?

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

Best airlines flying from Seoul to London Heathrow Airport

Compare and see reviews for airlines that fly from Seoul to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £354Free CancellationRating
7.2
173 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom £503Free CancellationRating
8.2
485 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £722Free CancellationRating
8.4
1,153 reviews
Search Korean Air flights

  • Korean Air Flights From Seoul to London Heathrow Airport

    Korean Air operates around 6 flights from Seoul to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £1,102, but momondo users have found Korean Air deals from Seoul to London Heathrow Airport from as low as £969 round-trip. Korean Air has been scored 8.4/10 in 1,153 reviews.

  • Asiana Airlines Flights From Seoul to London Heathrow Airport

    The best Asiana Airlines deal for Seoul to London Heathrow Airport flight tickets found on momondo in the last 72 hours was £675, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £993 round-trip. Asiana Airlines operates 6 flights out of Seoul into London Heathrow Airport in an average week, so prices vary by time and availability. 485 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.

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
Northampton
Slough
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Poole
Swanage
Colchester
Dover
Hayes
Chelmsford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Seoul with this policy.

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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