Cheap flights from London to Seoul from $370

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 9/2. 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 to Seoul (LON-SEL)

Cheap round-trip flights

China Southern Logo
9:30 pm - 12:25 pmLHR-GMP
29h 55m1 stop
China Southern Logo
1:45 pm - 5:55 pmGMP-LHR
37h 10m1 stop
$533China Southern
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Wed, Nov 19 - Sun, Nov 30
China Southern Logo
9:00 pm - 12:25 pmLHR-GMP
31h 25m1 stop
China Southern Logo
1:30 pm - 6:05 pmGMP-LHR
36h 35m1 stop
$541China Southern
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Wed, Sep 10 - Fri, Oct 10
Lufthansa Logo
8:45 am - 11:15 amLHR-ICN
17h 30m1 stop
Lufthansa Logo
1:30 pm - 9:00 pmICN-LHR
16h 30m1 stop
$554Lufthansa
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Thu, Nov 27 - Mon, Dec 1
Lufthansa Logo
10:30 am - 10:50 amLHR-ICN
15h 20m1 stop
Lufthansa Logo
1:30 pm - 9:00 pmICN-LHR
16h 30m1 stop
$555Lufthansa
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Tue, Dec 30 - Mon, Feb 9
China Eastern Logo
10:30 am - 3:05 pmLGW-ICN
19h 35m1 stop
China Eastern Logo
8:30 am - 6:30 amICN-LGW
31h 00m2 stops
$559China Eastern
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Wed, Nov 19 - Sun, Nov 30
 Logo
10:30 am - 11:55 amLGW-ICN
16h 25m1 stop
 Logo
10:45 pm - 5:20 pmICN-LGW
27h 35m1 stop
Mon, Nov 24 - Mon, Dec 1
 Logo
10:30 am - 3:05 pmLGW-ICN
19h 35m1 stop
 Logo
10:45 pm - 5:20 pmICN-LGW
27h 35m1 stop
Wed, Nov 19 - Fri, Dec 5
Air China Logo
12:35 pm - 4:35 pmLGW-ICN
20h 00m1 stop
Air China Logo
5:50 pm - 6:35 amICN-LGW
20h 45m1 stop
$590Air China
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Wed, Sep 10 - Fri, Oct 10
Air China Logo
12:35 pm - 9:45 pmLGW-ICN
25h 10m1 stop
Air China Logo
5:50 pm - 6:35 amICN-LGW
20h 45m1 stop
$591Air China
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Wed, Sep 10 - Fri, Oct 10
China Eastern Logo
10:30 am - 3:05 pmLGW-ICN
19h 35m1 stop
China Eastern Logo
4:10 pm - 6:30 amICN-LGW
23h 20m1 stop
$610China Eastern
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Sun, Nov 23 - Wed, Dec 3

Scandinavian Airlines flights from London to Seoul

Our best Scandinavian Airlines deals on London to Seoul flight tickets
Scandinavian Airlines
Nov 26
LHR7:50 pmLondon Heathrow
38h 10m
2 stops
ICN7:00 pmIncheon Intl
Dec 1
ICN11:45 pmIncheon Intl
25h 15m
1 stop
LHR4:00 pmLondon Heathrow
Scandinavian Airlines
Nov 22
LHR3:35 pmLondon Heathrow
42h 25m
2 stops
ICN7:00 pmIncheon Intl
Nov 24
ICN11:45 pmIncheon Intl
25h 15m
1 stop
LHR4:00 pmLondon Heathrow
Scandinavian Airlines
Nov 30
LHR1:55 pmLondon Heathrow
20h 05m
2 stops
ICN7:00 pmIncheon Intl
Dec 15
ICN11:45 pmIncheon Intl
23h 50m
2 stops
LHR2:35 pmLondon Heathrow

Turkish Airlines flights from London to Seoul

Our best Turkish Airlines deals on London to Seoul flight tickets
Turkish Airlines
Dec 29
LGW5:05 pmLondon Gatwick
31h 00m
1 stop
ICN9:05 amIncheon Intl
Jan 15
ICN12:10 amIncheon Intl
31h 25m
1 stop
LGW10:35 pmLondon Gatwick
Turkish Airlines
Nov 24
LGW6:25 amLondon Gatwick
26h 55m
1 stop
ICN6:20 pmIncheon Intl
Nov 29
ICN12:10 amIncheon Intl
31h 25m
1 stop
LGW10:35 pmLondon Gatwick
Turkish Airlines
Sep 6
LGW5:15 pmLondon Gatwick
16h 25m
1 stop
ICN5:40 pmIncheon Intl
Sep 15
ICN10:20 amIncheon Intl
20h 05m
1 stop
LGW10:25 pmLondon Gatwick

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated August 28, 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

LHR - GMP

LHRGMP

London Heathrow

Wed 11/19

9:30 pm-12:25 pm

1 stop29h 55m

Seoul Gimpo Intl

Sun 11/30

1:45 pm-5:55 pm

1 stop37h 10m

$533

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 9/10

9:00 pm-12:25 pm

1 stop31h 25m

Seoul Gimpo Intl

Fri 10/10

1:30 pm-6:05 pm

1 stop36h 35m

$541

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 11/27

8:45 am-11:15 am

1 stop17h 30m

Incheon Intl

Mon 12/1

1:30 pm-9:00 pm

1 stop16h 30m

$554

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 12/30

10:30 am-10:50 am

1 stop15h 20m

Incheon Intl

Mon 2/9

1:30 pm-9:00 pm

1 stop16h 30m

$555

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Wed 11/19

10:30 am-3:05 pm

1 stop19h 35m

Incheon Intl

Sun 11/30

8:30 am-6:30 am

2 stops31h 00m

$559

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Mon 11/24

10:30 am-11:55 am

1 stop16h 25m

Incheon Intl

Mon 12/1

10:45 pm-5:20 pm

1 stop27h 35m

$576

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Wed 11/19

10:30 am-3:05 pm

1 stop19h 35m

Incheon Intl

Fri 12/5

10:45 pm-5:20 pm

1 stop27h 35m

$579

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Wed 9/10

12:35 pm-4:35 pm

1 stop20h 00m

Incheon Intl

Fri 10/10

5:50 pm-6:35 am

1 stop20h 45m

$590

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Wed 9/10

12:35 pm-9:45 pm

1 stop25h 10m

Incheon Intl

Fri 10/10

5:50 pm-6:35 am

1 stop20h 45m

$591

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Sun 11/23

10:30 am-3:05 pm

1 stop19h 35m

Incheon Intl

Wed 12/3

4:10 pm-6:30 am

1 stop23h 20m

$610

Flights are sorted by cheapest round-trip 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 March is another great option to travel to Seoul, with average flight prices from London averaging around $615.

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

According to our data, Wednesday is the cheapest day to fly to Seoul from London. The lowest ticket price found for a Wednesday departure recently was $1,135. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Thursday, with ticket prices averaging around $1,268.

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

Flying to Seoul from London at noon is the least expensive time of day to depart. momondo users have found prices as low as $704 when looking at flights departing at noon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,200 per ticket.

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 $921 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London for as low as $849 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 13% 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 August 2025, prices for London to Seoul flights are approximately 29% 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 round-trip 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

$972

Fastest flight time

12h 35m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from London in the past 72 hours is $972. The best round-trip flight deal from London to Seoul found on momondo in the last 72 hours is $1,200.
The fastest flight from London to Seoul takes 12h 35m
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?

    Seoul is 5501.4 mi away from London. In terms of flight time, this usually takes a little over 14h 05m.

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

    Prices for flights from London to Seoul are refreshed on a daily basis.

  • 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 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 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
Air ChinaPriceFrom $507Free CancellationRating
7.3
95 reviews
Search Air China flights
LufthansaPriceFrom $579Free CancellationRating
6.8
7,368 reviews
Search Lufthansa flights
Korean AirPriceFrom $821Free CancellationRating
8.4
1,133 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $990Free CancellationRating
8.2
477 reviews
Search Asiana Airlines flights
  • Korean Air Flights From London to Seoul

    Korean Air operates around 6 flights from London to Seoul every week. The average price of these flights found in the last 72 hours has been $1,200, but momondo users have found Korean Air deals from London to Seoul from as low as $821 round-trip. Korean Air has been scored 8.4/10 in 1,133 reviews.

  • Asiana Airlines Flights From London to Seoul

    Asiana Airlines is also a popular choice for this route. Asiana Airlines flight deals for London to Seoul start from as low as $990 round-trip, depending on your selected dates, with average Asiana Airlines deals seen on momondo around $1,373. Asiana Airlines operates 7 flights to Seoul from London in an average week. Users have rated it 8.2/10 across 477 reviews.

Why use momondo?

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

Finding the right flight to Seoul from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seoul quick and easy, saving you time and money.

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?

Yes. momondo can track prices for London to Seoul 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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1 adult
Tue 9/2
Tue 9/9

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