Cheap flights from London to Seoul from £227

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 to Seoul departing on 2/12. 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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Air China Logo
12:35 - 13:05LGW-GMP
16h 30m1 stop
Air China Logo
14:25 - 06:35GMP-LGW
24h 10m1 stop
£358Air China
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Sun, 3 May - Sun, 10 May
Air China Logo
12:35 - 13:05LGW-GMP
16h 30m1 stop
Air China Logo
14:25 - 06:35GMP-LGW
24h 10m1 stop
£359Air China
Find Deal
Mon, 11 May - Sun, 24 May
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
£366China Southern
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Fri, 16 Jan - Wed, 28 Jan
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
China Southern Logo
13:30 - 17:05GMP-LHR
36h 35m1 stop
£367China Southern
Find Deal
Tue, 3 Mar - Sat, 28 Mar
China Eastern Logo
10:30 - 14:55LGW-ICN
19h 25m2 stops
China Eastern Logo
16:20 - 06:30ICN-LGW
23h 10m1 stop
£370China Eastern
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Wed, 31 Dec - Tue, 20 Jan
China Eastern Logo
17:00 - 11:55LGW-ICN
33h 55m1 stop
China Eastern Logo
16:40 - 14:00ICN-LGW
30h 20m2 stops
£370China Eastern
Find Deal
Mon, 12 Jan - Sun, 25 Jan
Multiple Airlines Logo
10:30 - 15:50LGW-ICN
20h 20m2 stops
Multiple Airlines Logo
16:20 - 14:00ICN-LGW
30h 40m1 stop
£375Multiple Airlines
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Thu, 29 Jan - Wed, 11 Feb
Multiple Airlines Logo
08:20 - 21:50STN-ICN
28h 30m3 stops
Multiple Airlines Logo
14:50 - 15:55ICN-STN
34h 05m2 stops
£403Multiple Airlines
Find Deal
Fri, 2 Jan - Fri, 16 Jan
Lufthansa Logo
09:50 - 10:50LCY-ICN
16h 00m1 stop
Lufthansa Logo
13:05 - 09:15ICN-LCY
29h 10m1 stop
£481Lufthansa
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Mon, 9 Feb - Tue, 24 Feb
Lufthansa Logo
09:50 - 11:15LCY-ICN
16h 25m2 stops
Lufthansa Logo
13:05 - 09:15ICN-LCY
29h 10m1 stop
£497Lufthansa
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Tue, 10 Feb - Tue, 24 Feb

China Eastern flights from London to Seoul

Our best China Eastern deals on London to Seoul flight tickets
China Eastern
31 Dec
LGW10:30London Gatwick
19h 25m
2 stops
ICN14:55Incheon Intl
20 Jan
ICN16:20Incheon Intl
23h 10m
1 stop
LGW06:30London Gatwick
China Eastern
12 Jan
LGW17:00London Gatwick
33h 55m
1 stop
ICN11:55Incheon Intl
25 Jan
ICN16:40Incheon Intl
30h 20m
2 stops
LGW14:00London Gatwick
China Eastern
14 Jan
LGW17:00London Gatwick
35h 30m
1 stop
ICN13:30Incheon Intl
25 Jan
ICN16:40Incheon Intl
30h 20m
2 stops
LGW14:00London Gatwick

Air China flights from London to Seoul

Our best Air China deals on London to Seoul flight tickets
Air China
3 May
LGW12:35London Gatwick
16h 30m
1 stop
GMP13:05Seoul Gimpo Intl
10 May
GMP14:25Seoul Gimpo Intl
24h 10m
1 stop
LGW06:35London Gatwick
Air China
11 May
LGW12:35London Gatwick
16h 30m
1 stop
GMP13:05Seoul Gimpo Intl
24 May
GMP14:25Seoul Gimpo Intl
24h 10m
1 stop
LGW06:35London Gatwick
Air China
10 May
LGW12:35London Gatwick
16h 30m
1 stop
GMP13:05Seoul Gimpo Intl
24 May
GMP14:25Seoul Gimpo Intl
24h 10m
1 stop
LGW06:35London Gatwick

momondo Fare Finder

 
Customise your flight search to find flights from London 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 27 November 2025.
Use the filters below to find and compare flights from London to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Sun 3/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 10/5

14:25-06:35

1 stop24h 10m

£358

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Mon 11/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 24/5

14:25-06:35

1 stop24h 10m

£359

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 16/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 28/1

13:30-17:55

1 stop37h 25m

£366

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 3/3

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Sat 28/3

13:30-17:05

1 stop36h 35m

£367

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Wed 31/12

10:30-14:55

2 stops19h 25m

Incheon Intl

Tue 20/1

16:20-06:30

1 stop23h 10m

£370

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Mon 12/1

17:00-11:55

1 stop33h 55m

Incheon Intl

Sun 25/1

16:40-14:00

2 stops30h 20m

£370

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Thu 29/1

10:30-15:50

2 stops20h 20m

Incheon Intl

Wed 11/2

16:20-14:00

1 stop30h 40m

£375

LondonIncheon

STN - ICN

STNICN

London Stansted

Fri 2/1

08:20-21:50

3 stops28h 30m

Incheon Intl

Fri 16/1

14:50-15:55

2 stops34h 05m

£403

LondonIncheon

LCY - ICN

LCYICN

London City

Mon 9/2

09:50-10:50

1 stop16h 00m

Incheon Intl

Tue 24/2

13:05-09:15

1 stop29h 10m

£481

LondonIncheon

LCY - ICN

LCYICN

London City

Tue 10/2

09:50-11:15

2 stops16h 25m

Incheon Intl

Tue 24/2

13:05-09:15

1 stop29h 10m

£497

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 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 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, with most prices found around £435. If you are unable to visit Seoul during the month of November, then departing from London during the month May is also very affordable. Most momondo users find prices during this month for around £481.

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

The cheapest day to depart from London to Seoul is on a Tuesday when prices can be found for as low as £902. Flights from London to Seoul on a Saturday will generally be more expensive and average around £1,042. 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 to Seoul during this time can be as low as £745. Flights in the afternoon are often more expensive, with an average ticket price of £1,046.

What is the cheapest London to Seoul flight route?

Fly from London Heathrow to Incheon Intl for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around £704 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 for as low as £609 on momondo.

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

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

You could potentially save up to 22% on your flight if you consider stops on a London to Seoul flight.

How have London to Seoul flight prices changed over time?

As of November 2025, prices for London to Seoul flights are approximately 35% cheaper when compared to flights at the same time last year.

When to book flights from London to Seoul

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

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

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

Best price found

£500

Fastest flight time

12h 20m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from London in the past 72 hours is £500. The best return flight deal from London to Seoul found on momondo in the last 72 hours is £857.
The fastest flight from London to Seoul takes 12h 20m
Direct flights go from London to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
  • How far is London to Seoul by plane?

    The straight-line distance from London to Seoul is 5501.4 mi. Flights usually cover this in 13h 55m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London to Seoul are updated daily.

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

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

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

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

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

Best airlines flying from London to Seoul

Compare and see reviews for airlines that fly from London to Seoul with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £306Free CancellationRating
7.2
178 reviews
Search China Eastern flights
China SouthernPriceFrom £336Free CancellationRating
7.5
119 reviews
Search China Southern flights
Air ChinaPriceFrom £362Free CancellationRating
7.2
126 reviews
Search Air China flights
Shenzhen AirlinesPriceFrom £429Free CancellationRating
7.6
22 reviews
Search Shenzhen Airlines flights
LufthansaPriceFrom £434Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom £506Free CancellationRating
7.3
4,063 reviews
Search Turkish Airlines flights
LOTPriceFrom £533Free CancellationRating
7.5
1,140 reviews
Search LOT flights
Etihad AirwaysPriceFrom £547Free CancellationRating
7.4
1,312 reviews
Search Etihad Airways flights
Air FrancePriceFrom £558Free CancellationRating
7.4
1,498 reviews
Search Air France flights
FinnairPriceFrom £564Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
  • Korean Air Flights From London to Seoul

    Korean Air flight deals from London to Seoul start from £751 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually £881 round-trip - but some users have found much cheaper deals with momondo.

  • Asiana Airlines Flights From London to Seoul

    The best Asiana Airlines deal for London to Seoul flight tickets found on momondo in the last 72 hours was £708, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £854 round-trip. Asiana Airlines operates 7 flights out of London into Seoul in an average week, so prices vary by time and availability. 490 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.

Why use momondo?

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

It is quick and easy to find London to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

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

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

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

Once you have performed a search for London to Seoul flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from London to Seoul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seoul and let you know when they change.

An easier way to manage your Seoul trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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1 adult
Sat 27/12
Sat 3/1

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