Cheap flights from London to Seoul from £219

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 12/1. 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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China Southern Logo
20:20 - 21:45
LGW
-
ICN
16h 25m1 stop
China Southern Logo
22:45 - 17:20
ICN
-
LGW
27h 35m1 stop
£357China Southern
Tue, 10 Mar - Mon, 16 Mar
China Eastern Logo
21:00 - 20:45
LHR
-
ICN
14h 45m1 stop
China Eastern Logo
20:50 - 17:30
ICN
-
LHR
29h 40m2 stops
£359China Eastern
Mon, 19 Jan - Mon, 26 Jan
Air China Logo
12:35 - 13:05
LGW
-
GMP
16h 30m1 stop
Air China Logo
14:25 - 06:35
GMP
-
LGW
24h 10m1 stop
£360Air China
Wed, 6 May - Tue, 19 May
China Eastern Logo
21:00 - 12:15
LHR
-
ICN
30h 15m2 stops
China Eastern Logo
20:50 - 17:30
ICN
-
LHR
29h 40m2 stops
£360China Eastern
Mon, 26 Jan - Mon, 2 Feb
Air China Logo
12:35 - 13:05
LGW
-
GMP
16h 30m1 stop
Air China Logo
14:25 - 06:35
GMP
-
LGW
24h 10m1 stop
£365Air China
Tue, 9 Jun - Tue, 16 Jun
China Southern Logo
21:30 - 22:15
LHR
-
ICN
15h 45m1 stop
China Southern Logo
09:25 - 18:35
ICN
-
LHR
18h 10m1 stop
£366China Southern
Wed, 7 Jan - Tue, 17 Feb
KLM Logo
17:50 - 16:55
LCY
-
ICN
14h 05m1 stop
KLM Logo
23:05 - 08:10
ICN
-
LCY
18h 05m1 stop
£436KLM
Wed, 14 Jan - Tue, 10 Mar
KLM Logo
17:50 - 16:55
LCY
-
ICN
14h 05m1 stop
KLM Logo
23:05 - 07:15
ICN
-
LCY
17h 10m1 stop
£437KLM
Wed, 7 Jan - Tue, 17 Feb
ANA Logo
09:50 - 22:30
LCY
-
GMP
27h 40m2 stops
ANA Logo
19:50 - 09:20
GMP
-
LCY
46h 30m2 stops
£1,349ANA
Wed, 14 Jan - Wed, 21 Jan
ANA Logo
09:40 - 18:35
LCY
-
GMP
23h 55m2 stops
ANA Logo
19:55 - 08:40
GMP
-
LCY
44h 45m2 stops
£3,908ANA
Thu, 26 Mar - Sat, 11 Apr

China Southern flights from London to Seoul

Our best China Southern deals on London to Seoul flight tickets
China Southern
10 Mar
LGW20:20London Gatwick
16h 25m
1 stop
ICN21:45Incheon Intl
16 Mar
ICN22:45Incheon Intl
27h 35m
1 stop
LGW17:20London Gatwick
China Southern
10 Mar
LGW20:20London Gatwick
16h 25m
1 stop
ICN21:45Incheon Intl
16 Mar
ICN22:45Incheon Intl
27h 35m
1 stop
LGW17:20London Gatwick
China Southern
7 Jan
LHR21:30London Heathrow
15h 45m
1 stop
ICN22:15Incheon Intl
17 Feb
ICN09:25Incheon Intl
18h 10m
1 stop
LHR18:35London Heathrow

China Eastern flights from London to Seoul

Our best China Eastern deals on London to Seoul flight tickets
China Eastern
19 Jan
LHR21:00London Heathrow
14h 45m
1 stop
ICN20:45Incheon Intl
26 Jan
ICN20:50Incheon Intl
29h 40m
2 stops
LHR17:30London Heathrow
China Eastern
26 Jan
LHR21:00London Heathrow
30h 15m
2 stops
ICN12:15Incheon Intl
2 Feb
ICN20:50Incheon Intl
29h 40m
2 stops
LHR17:30London Heathrow
China Eastern
20 Jan
LGW10:30London Gatwick
19h 25m
2 stops
ICN14:55Incheon Intl
27 Jan
ICN16:10Incheon Intl
23h 20m
1 stop
LGW06:30London 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 18 December 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

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Tue 10/3

20:20-21:45

1 stop16h 25m

Incheon Intl

Mon 16/3

22:45-17:20

1 stop27h 35m

£357

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 19/1

21:00-20:45

1 stop14h 45m

Incheon Intl

Mon 26/1

20:50-17:30

2 stops29h 40m

£359

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Wed 6/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Tue 19/5

14:25-06:35

1 stop24h 10m

£360

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 26/1

21:00-12:15

2 stops30h 15m

Incheon Intl

Mon 2/2

20:50-17:30

2 stops29h 40m

£360

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Tue 9/6

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Tue 16/6

14:25-06:35

1 stop24h 10m

£365

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 7/1

21:30-22:15

1 stop15h 45m

Incheon Intl

Tue 17/2

09:25-18:35

1 stop18h 10m

£366

LondonIncheon

LCY - ICN

LCYICN

London City

Wed 14/1

17:50-16:55

1 stop14h 05m

Incheon Intl

Tue 10/3

23:05-08:10

1 stop18h 05m

£436

LondonIncheon

LCY - ICN

LCYICN

London City

Wed 7/1

17:50-16:55

1 stop14h 05m

Incheon Intl

Tue 17/2

23:05-07:15

1 stop17h 10m

£437

LondonSeoul

LCY - GMP

LCYGMP

London City

Wed 14/1

09:50-22:30

2 stops27h 40m

Seoul Gimpo Intl

Wed 21/1

19:50-09:20

2 stops46h 30m

£1,349

LondonSeoul

LCY - GMP

LCYGMP

London City

Thu 26/3

09:40-18:35

2 stops23h 55m

Seoul Gimpo Intl

Sat 11/4

19:55-08:40

2 stops44h 45m

£3,908

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 £434. 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 £476.

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 £888. Flights from London to Seoul on a Saturday will generally be more expensive and average around £1,032. 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 £735. Flights in the afternoon are often more expensive, with an average ticket price of £1,031.

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 £701 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 £597 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 December 2025, prices for London to Seoul flights are approximately 36% 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

£415

Fastest flight time

11h 55m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from London in the past 72 hours is £415. The best return flight deal from London to Seoul found on momondo in the last 72 hours is £732.
The fastest flight from London to Seoul takes 11h 55m
Direct flights go from London to Seoul every day.
There are 2 airports in Seoul. From London there are direct flights to 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 11h 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 £302Free CancellationRating
7.2
178 reviews
Search China Eastern flights
Turkish AirlinesPriceFrom £329Free CancellationRating
7.3
4,105 reviews
Search Turkish Airlines flights
China SouthernPriceFrom £331Free CancellationRating
7.5
122 reviews
Search China Southern flights
Air ChinaPriceFrom £345Free CancellationRating
7.1
129 reviews
Search Air China flights
LufthansaPriceFrom £427Free CancellationRating
6.8
7,634 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom £457Free CancellationRating
7.4
1,606 reviews
Search Scandinavian Airlines flights
Etihad AirwaysPriceFrom £540Free CancellationRating
7.4
1,332 reviews
Search Etihad Airways flights
Air FrancePriceFrom £551Free CancellationRating
7.4
1,507 reviews
Search Air France flights
LOTPriceFrom £554Free CancellationRating
7.5
1,149 reviews
Search LOT flights
FinnairPriceFrom £561Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
  • Korean Air Flights From London to Seoul

    Korean Air flight deals from London to Seoul start from £741 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually £870 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 £698, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £839 round-trip. Asiana Airlines operates 7 flights out of London into Seoul in an average week, so prices vary by time and availability. 493 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 17/1
Sat 24/1

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