Cheap flights from London to Seoul from £225

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 24/11. 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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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, 13 Nov - Thu, 20 Nov
China Eastern Logo
21:00 - 11:00LHR-GMP
29h 00m1 stop
China Eastern Logo
20:50 - 17:30GMP-LHR
29h 40m1 stop
£347China Eastern
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Mon, 24 Nov - Mon, 1 Dec
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
£360China Southern
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Mon, 10 Nov - Wed, 19 Nov
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
China Southern Logo
13:30 - 17:55GMP-LHR
37h 25m1 stop
£361China Southern
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Sat, 15 Nov - Wed, 26 Nov
Air China Logo
17:40 - 13:05LHR-GMP
34h 25m1 stop
Air China Logo
14:25 - 17:50GMP-LHR
36h 25m1 stop
£374Air China
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Thu, 27 Nov - Mon, 1 Dec
Air China Logo
20:25 - 13:05LHR-GMP
31h 40m1 stop
Air China Logo
14:25 - 17:50GMP-LHR
36h 25m1 stop
£376Air China
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Mon, 10 Nov - Tue, 18 Nov
Lufthansa Logo
07:40 - 11:15LHR-ICN
18h 35m1 stop
Lufthansa Logo
13:30 - 22:55ICN-LHR
18h 25m1 stop
£424Lufthansa
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Tue, 6 Jan - Mon, 16 Feb
Lufthansa Logo
10:30 - 10:50LHR-ICN
15h 20m1 stop
Lufthansa Logo
13:05 - 20:50ICN-LHR
16h 45m1 stop
£428Lufthansa
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Tue, 17 Mar - Tue, 24 Mar
KLM Logo
17:50 - 16:55LCY-ICN
14h 05m1 stop
KLM Logo
23:05 - 08:10ICN-LCY
18h 05m1 stop
£578KLM
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Thu, 12 Mar - Thu, 26 Mar
KLM Logo
17:05 - 16:55LCY-ICN
14h 50m1 stop
KLM Logo
23:05 - 08:50ICN-LCY
18h 45m1 stop
£582KLM
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Thu, 12 Mar - Thu, 19 Mar

Hainan Airlines flights from London to Seoul

Our best Hainan Airlines deals on London to Seoul flight tickets
Hainan Airlines
10 Nov
LHR21:00London Heathrow
39h 00m
2 stops
ICN21:00Incheon Intl
15 Nov
ICN22:10Incheon Intl
28h 45m
1 stop
LHR17:55London Heathrow
Hainan Airlines
10 Nov
LHR21:00London Heathrow
39h 00m
2 stops
ICN21:00Incheon Intl
15 Nov
ICN22:10Incheon Intl
28h 45m
1 stop
LHR17:55London Heathrow
Hainan Airlines
3 Nov
LHR21:00London Heathrow
39h 00m
2 stops
ICN21:00Incheon Intl
8 Nov
ICN22:10Incheon Intl
28h 45m
1 stop
LHR17:55London Heathrow

Lufthansa flights from London to Seoul

Our best Lufthansa deals on London to Seoul flight tickets
Lufthansa
6 Jan
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl
16 Feb
ICN13:30Incheon Intl
18h 25m
1 stop
LHR22:55London Heathrow
Lufthansa
17 Mar
LHR10:30London Heathrow
15h 20m
1 stop
ICN10:50Incheon Intl
24 Mar
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
Lufthansa
17 Mar
LCY09:50London City
16h 00m
1 stop
ICN10:50Incheon Intl
24 Mar
ICN13:05Incheon Intl
29h 10m
1 stop
LCY09:15London City

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 31 October 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

Thu 13/11

21:00-11:00

1 stop29h 00m

Seoul Gimpo Intl

Thu 20/11

20:50-17:30

1 stop29h 40m

£338

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 24/11

21:00-11:00

1 stop29h 00m

Seoul Gimpo Intl

Mon 1/12

20:50-17:30

1 stop29h 40m

£347

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 10/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 19/11

13:30-17:55

1 stop37h 25m

£360

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 15/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 26/11

13:30-17:55

1 stop37h 25m

£361

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 27/11

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Mon 1/12

14:25-17:50

1 stop36h 25m

£374

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 10/11

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Tue 18/11

14:25-17:50

1 stop36h 25m

£376

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 6/1

07:40-11:15

1 stop18h 35m

Incheon Intl

Mon 16/2

13:30-22:55

1 stop18h 25m

£424

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 17/3

10:30-10:50

1 stop15h 20m

Incheon Intl

Tue 24/3

13:05-20:50

1 stop16h 45m

£428

LondonIncheon

LCY - ICN

LCYICN

London City

Thu 12/3

17:50-16:55

1 stop14h 05m

Incheon Intl

Thu 26/3

23:05-08:10

1 stop18h 05m

£578

LondonIncheon

LCY - ICN

LCYICN

London City

Thu 12/3

17:05-16:55

1 stop14h 50m

Incheon Intl

Thu 19/3

23:05-08:50

1 stop18h 45m

£582

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 £425. 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 £480.

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 £903. Flights from London to Seoul on a Saturday will generally be more expensive and average around £1,035. 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 £753. 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 £708 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 £623 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 21% 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 October 2025, prices for London to Seoul flights are approximately 34% 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

£515

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 £515. The best return flight deal from London to Seoul found on momondo in the last 72 hours is £859.
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?

    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
174 reviews
Search China Eastern flights
China SouthernPriceFrom £336Free CancellationRating
7.4
117 reviews
Search China Southern flights
Air ChinaPriceFrom £363Free CancellationRating
7.1
119 reviews
Search Air China flights
Shenzhen AirlinesPriceFrom £430Free CancellationRating
7.5
20 reviews
Search Shenzhen Airlines flights
LufthansaPriceFrom £438Free CancellationRating
6.8
7,543 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom £507Free CancellationRating
7.3
4,033 reviews
Search Turkish Airlines flights
LOTPriceFrom £533Free CancellationRating
7.6
1,135 reviews
Search LOT flights
Etihad AirwaysPriceFrom £548Free CancellationRating
7.4
1,284 reviews
Search Etihad Airways flights
Air FrancePriceFrom £559Free CancellationRating
7.4
1,482 reviews
Search Air France flights
FinnairPriceFrom £565Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
  • Korean Air Flights From London to Seoul

    Korean Air flight deals from London to Seoul start from £752 round-trip. Over the 8 Korean Air flights for this route in a normal week, average airfare is usually £882 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 £710, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £855 round-trip. Asiana Airlines operates 7 flights out of London into Seoul in an average week, so prices vary by time and availability. 484 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
Sun 30/11
Sun 7/12

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