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Cheap flights from London Heathrow Airport to Seoul from £245

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Seoul departing on 4/11. 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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Find the cheapest flights from London Heathrow Airport to Seoul

Cheap return flights

China Eastern Logo
21:00 - 11:00LHR-GMP
29h 00m1 stop
China Eastern Logo
20:50 - 17:30GMP-LHR
29h 40m1 stop
£338China Eastern
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Thu, 6 Nov - Mon, 10 Nov
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
China Southern Logo
13:45 - 17:55GMP-LHR
37h 10m1 stop
£364China Southern
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Fri, 14 Nov - Sun, 23 Nov
Air China Logo
20:25 - 13:05LHR-GMP
31h 40m1 stop
Air China Logo
14:25 - 15:55GMP-LHR
34h 30m1 stop
£376Air China
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Wed, 29 Oct - Wed, 5 Nov
Air China Logo
20:25 - 13:05LHR-GMP
31h 40m1 stop
Air China Logo
14:25 - 15:55GMP-LHR
34h 30m1 stop
£378Air China
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Wed, 29 Oct - Wed, 5 Nov
LOT Logo
18:20 - 11:45LHR-ICN
32h 25m1 stop
LOT Logo
13:25 - 17:20ICN-LHR
36h 55m1 stop
£394LOT
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Sun, 1 Feb - Sat, 7 Mar
Logo
21:20 - 20:45LHR-ICN
15h 25m1 stop
Logo
20:50 - 17:30ICN-LHR
29h 40m2 stops
£407
Find Deal
Thu, 2 Oct - Mon, 1 Dec
Logo
21:20 - 20:45LHR-ICN
15h 25m1 stop
Logo
20:50 - 17:30ICN-LHR
29h 40m2 stops
£409
Find Deal
Thu, 2 Oct - Mon, 1 Dec
Lufthansa Logo
20:15 - 11:15LHR-ICN
30h 00m1 stop
Lufthansa Logo
13:05 - 20:50ICN-LHR
16h 45m1 stop
£411Lufthansa
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Mon, 9 Mar - Tue, 24 Mar
LOT Logo
06:30 - 07:10LHR-ICN
15h 40m1 stop
LOT Logo
08:50 - 09:35ICN-LHR
33h 45m1 stop
£413LOT
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Tue, 13 Jan - Wed, 18 Feb
Lufthansa Logo
11:10 - 11:15LHR-ICN
15h 05m1 stop
Lufthansa Logo
13:30 - 22:55ICN-LHR
18h 25m1 stop
£422Lufthansa
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Fri, 27 Feb - Fri, 13 Mar

LOT flights from London Heathrow Airport to Seoul

Our best LOT deals on London Heathrow Airport to Seoul flight tickets
LOT
1 Feb
LHR18:20London Heathrow
32h 25m
1 stop
ICN11:45Incheon Intl
7 Mar
ICN13:25Incheon Intl
36h 55m
1 stop
LHR17:20London Heathrow
£394
Find similar
LOT
13 Jan
LHR06:30London Heathrow
15h 40m
1 stop
ICN07:10Incheon Intl
18 Feb
ICN08:50Incheon Intl
33h 45m
1 stop
LHR09:35London Heathrow
£413
Find similar
LOT
10 Dec
LHR18:20London Heathrow
27h 50m
1 stop
ICN07:10Incheon Intl
20 Jan
ICN13:25Incheon Intl
17h 35m
1 stop
LHR22:00London Heathrow
£416
Find similar

Lufthansa flights from London Heathrow Airport to Seoul

Our best Lufthansa deals on London Heathrow Airport to Seoul flight tickets
Lufthansa
9 Mar
LHR20:15London Heathrow
30h 00m
1 stop
ICN11:15Incheon Intl
24 Mar
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
£411
Find similar
Lufthansa
27 Feb
LHR11:10London Heathrow
15h 05m
1 stop
ICN11:15Incheon Intl
13 Mar
ICN13:30Incheon Intl
18h 25m
1 stop
LHR22:55London Heathrow
£422
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Seoul 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 16 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 6/11

21:00-11:00

1 stop29h 00m

Seoul Gimpo Intl

Mon 10/11

20:50-17:30

1 stop29h 40m

£338

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 14/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Sun 23/11

13:45-17:55

1 stop37h 10m

£364

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 29/10

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Wed 5/11

14:25-15:55

1 stop34h 30m

£376

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 29/10

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Wed 5/11

14:25-15:55

1 stop34h 30m

£378

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 1/2

18:20-11:45

1 stop32h 25m

Incheon Intl

Sat 7/3

13:25-17:20

1 stop36h 55m

£394

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 2/10

21:20-20:45

1 stop15h 25m

Incheon Intl

Mon 1/12

20:50-17:30

2 stops29h 40m

£407

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 2/10

21:20-20:45

1 stop15h 25m

Incheon Intl

Mon 1/12

20:50-17:30

2 stops29h 40m

£409

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 9/3

20:15-11:15

1 stop30h 00m

Incheon Intl

Tue 24/3

13:05-20:50

1 stop16h 45m

£411

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 13/1

06:30-07:10

1 stop15h 40m

Incheon Intl

Wed 18/2

08:50-09:35

1 stop33h 45m

£413

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 27/2

11:10-11:15

1 stop15h 05m

Incheon Intl

Fri 13/3

13:30-22:55

1 stop18h 25m

£422

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 Seoul from

How to get the cheapest flight ticket from London Heathrow Airport to Seoul

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 London Heathrow Airport and Seoul?

What is the cheapest month to fly to Seoul?

The month of November is, on average, the cheapest month to fly to Seoul from London Heathrow Airport, with most prices found around £449. If you are unable to visit Seoul during the month of November, then departing from London Heathrow Airport during the month January is also very affordable. Most momondo users find prices during this month for around £508.

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

The cheapest day to depart from London Heathrow Airport to Seoul is on a Tuesday when prices can be found for as low as £867. Flights from London Heathrow Airport to Seoul on a Saturday will generally be more expensive and average around £991. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Seoul is at midday. Flights from London Heathrow Airport to Seoul during this time can be as low as £730. Flights in the afternoon are often more expensive, with an average ticket price of £1,007.

What is the cheapest London Heathrow to Seoul flight route?

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

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

You are more likely to see cheaper flights to Seoul from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around £680 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London Heathrow Airport for as low as £643 on momondo.

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

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

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

As of September 2025, prices for London Heathrow Airport to Seoul flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Seoul

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

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

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

Best price found

£514

Fastest flight time

12h 35m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from London Heathrow Airport in the past 72 hours is £514. The best return flight deal from London Heathrow Airport to Seoul found on momondo in the last 72 hours is £852.
The fastest flight from London Heathrow Airport to Seoul takes 12h 35m
Direct flights go from London Heathrow Airport to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
Search flight deals

  • How far is London Heathrow to Seoul by plane?

    Seoul is 5512.0 mi away from London Heathrow. In terms of flight time, this usually takes a little over 13h 55m.

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

    Prices for flights from London Heathrow Airport to Seoul were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Seoul.

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

    The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from London Heathrow Airport to Seoul

Compare and see reviews for airlines that fly from London Heathrow Airport to Seoul with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £327Free CancellationRating
7.2
165 reviews
Search China Eastern flights
China SouthernPriceFrom £333Free CancellationRating
7.5
110 reviews
Search China Southern flights
Air ChinaPriceFrom £352Free CancellationRating
7.2
99 reviews
Search Air China flights
Shenzhen AirlinesPriceFrom £417Free CancellationRating
7.5
20 reviews
Search Shenzhen Airlines flights
LufthansaPriceFrom £426Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
LOTPriceFrom £516Free CancellationRating
7.6
1,114 reviews
Search LOT flights
Etihad AirwaysPriceFrom £532Free CancellationRating
7.4
1,250 reviews
Search Etihad Airways flights
Air FrancePriceFrom £537Free CancellationRating
7.4
1,469 reviews
Search Air France flights
FinnairPriceFrom £540Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
Turkish AirlinesPriceFrom £541Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights

  • Korean Air Flights From London Heathrow Airport to Seoul

    The lowest priced Korean Air flight from London Heathrow Airport to Seoul from the last 72 hours was £995. Generally, Korean Air has 7 flights on this route every week with an average price of £1,158. Korean Air is rated 8.4/10 by our users.

  • Asiana Airlines Flights From London Heathrow Airport to Seoul

    Asiana Airlines is also a popular choice for this route. Asiana Airlines flight deals for London Heathrow Airport to Seoul start from as low as £941 round-trip, depending on your selected dates, with average Asiana Airlines deals seen on momondo around £1,125. Asiana Airlines operates 7 flights to Seoul from London Heathrow Airport in an average week. Users have rated it 8.2/10 across 479 reviews.

Why use momondo?

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

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

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

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

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

Once all potential London to Seoul 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 London to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from London and alert you when they change.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport