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Cheap flights from London to Seoul from €348

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 7/11. 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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Cheap return flights

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Lufthansa Logo
07:40 - 11:15LHR-ICN
18h 35m1 stop
Lufthansa Logo
13:30 - 21:00ICN-LHR
16h 30m1 stop
€490Lufthansa
Find Deal
Sun, 4 Jan - Wed, 11 Feb
Lufthansa Logo
11:10 - 11:15LHR-ICN
15h 05m1 stop
Lufthansa Logo
13:30 - 21:00ICN-LHR
16h 30m1 stop
€493Lufthansa
Find Deal
Tue, 3 Mar - Mon, 9 Mar
Lufthansa Logo
07:40 - 11:15LHR-ICN
18h 35m1 stop
Lufthansa Logo
13:05 - 20:50ICN-LHR
16h 45m1 stop
€500Lufthansa
Find Deal
Sat, 10 Jan - Thu, 5 Feb
Lufthansa Logo
11:10 - 11:15LHR-ICN
15h 05m1 stop
Lufthansa Logo
13:05 - 20:50ICN-LHR
16h 45m1 stop
€502Lufthansa
Find Deal
Sun, 8 Feb - Sun, 1 Mar
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
Shenzhen Airlines Logo
16:45 - 19:10ICN-LHR
35h 25m1 stop
€526Shenzhen Airlines
Find Deal
Fri, 14 Nov - Sat, 22 Nov
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
Shenzhen Airlines Logo
16:45 - 19:10ICN-LHR
35h 25m1 stop
€527Shenzhen Airlines
Find Deal
Fri, 14 Nov - Tue, 2 Dec
Scandinavian Airlines Logo
21:05 - 19:00LHR-ICN
36h 55m2 stops
Scandinavian Airlines Logo
23:45 - 16:25ICN-LHR
25h 40m2 stops
€562Scandinavian Airlines
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Mon, 1 Dec - Mon, 8 Dec
Scandinavian Airlines Logo
07:05 - 19:00LHR-ICN
26h 55m2 stops
Scandinavian Airlines Logo
23:45 - 09:35ICN-LHR
42h 50m2 stops
€570Scandinavian Airlines
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Thu, 4 Dec - Fri, 16 Jan
KLM Logo
17:50 - 16:55LCY-ICN
14h 05m1 stop
KLM Logo
23:05 - 08:50ICN-LCY
18h 45m1 stop
€657KLM
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Wed, 3 Dec - Thu, 11 Dec
KLM Logo
17:50 - 16:55LCY-ICN
14h 05m1 stop
KLM Logo
23:05 - 07:15ICN-LCY
17h 10m1 stop
€660KLM
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Wed, 3 Dec - Thu, 11 Dec

Lufthansa flights from London to Seoul

Our best Lufthansa deals on London to Seoul flight tickets
Lufthansa
4 Jan
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl
11 Feb
ICN13:30Incheon Intl
16h 30m
1 stop
LHR21:00London Heathrow
€490
Find similar
Lufthansa
3 Mar
LHR11:10London Heathrow
15h 05m
1 stop
ICN11:15Incheon Intl
9 Mar
ICN13:30Incheon Intl
16h 30m
1 stop
LHR21:00London Heathrow
€493
Find similar
Lufthansa
10 Jan
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl
5 Feb
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
€500
Find similar

Shenzhen Airlines flights from London to Seoul

Our best Shenzhen Airlines deals on London to Seoul flight tickets
Shenzhen Airlines
14 Nov
LHR21:10London Heathrow
31h 45m
1 stop
ICN13:55Incheon Intl
22 Nov
ICN16:45Incheon Intl
35h 25m
1 stop
LHR19:10London Heathrow
€526
Find similar
Shenzhen Airlines
14 Nov
LHR21:10London Heathrow
31h 45m
1 stop
ICN13:55Incheon Intl
2 Dec
ICN16:45Incheon Intl
35h 25m
1 stop
LHR19:10London Heathrow
€527
Find similar
Shenzhen Airlines
26 Jan
LHR21:10London Heathrow
31h 45m
1 stop
ICN13:55Incheon Intl
14 Feb
ICN14:55Incheon Intl
37h 15m
1 stop
LHR19:10London Heathrow
€576
Find similar

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 13,528 searches. Data last updated 17 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

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 4/1

07:40-11:15

1 stop18h 35m

Incheon Intl

Wed 11/2

13:30-21:00

1 stop16h 30m

€490

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 3/3

11:10-11:15

1 stop15h 05m

Incheon Intl

Mon 9/3

13:30-21:00

1 stop16h 30m

€493

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 10/1

07:40-11:15

1 stop18h 35m

Incheon Intl

Thu 5/2

13:05-20:50

1 stop16h 45m

€500

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 8/2

11:10-11:15

1 stop15h 05m

Incheon Intl

Sun 1/3

13:05-20:50

1 stop16h 45m

€502

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 14/11

21:10-13:55

1 stop31h 45m

Incheon Intl

Sat 22/11

16:45-19:10

1 stop35h 25m

€526

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 14/11

21:10-13:55

1 stop31h 45m

Incheon Intl

Tue 2/12

16:45-19:10

1 stop35h 25m

€527

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 1/12

21:05-19:00

2 stops36h 55m

Incheon Intl

Mon 8/12

23:45-16:25

2 stops25h 40m

€562

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 4/12

07:05-19:00

2 stops26h 55m

Incheon Intl

Fri 16/1

23:45-09:35

2 stops42h 50m

€570

LondonIncheon

LCY - ICN

LCYICN

London City

Wed 3/12

17:50-16:55

1 stop14h 05m

Incheon Intl

Thu 11/12

23:05-08:50

1 stop18h 45m

€657

LondonIncheon

LCY - ICN

LCYICN

London City

Wed 3/12

17:50-16:55

1 stop14h 05m

Incheon Intl

Thu 11/12

23:05-07:15

1 stop17h 10m

€660

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 cheapest month to fly to Seoul from London is in November. Flight prices, which tend to average around €482, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Seoul, with average flight prices from London averaging around €542.

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

On average, the least expensive day to fly to Seoul from London is on a Friday. momondo users have found tickets for Friday departures for as low as €1,048. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London to Seoul on a Wednesday will generally be more expensive and average around €1,313. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 €801 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 €712 on momondo.

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

There is only 1 cabin class 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 26% 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 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

Fastest flight time

12h 35m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Seoul

1 airport
The fastest flight from London to Seoul takes 12h 35m
Direct flights go from London to Seoul on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights..
There is 1 airport near Seoul: Incheon Intl (ICN)
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  • How far is London to Seoul by plane?

    Seoul is 8853.6 km away from London. 14h 05m is a normal flight duration for this route.

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

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

  • 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify 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 licence 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?

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. All flights to Seoul from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Seoul from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Seoul from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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 48.8 km from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport