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Cheap flights from London to Seoul from €373

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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Find the cheapest flights from London to Seoul (LON-SEL)

Cheap return flights

Lufthansa Logo
07:25 - 09:55LHR-ICN
18h 30m1 stop
Lufthansa Logo
13:30 - 22:55ICN-LHR
18h 25m1 stop
€493Lufthansa
Find Deal
Tue, 21 Oct - Wed, 29 Oct
Air China Logo
22:40 - 16:35LHR-ICN
33h 55m1 stop
Air China Logo
10:40 - 20:30ICN-LHR
17h 50m1 stop
€494Air China
Find Deal
Thu, 11 Sep - Mon, 22 Sep
Lufthansa Logo
07:40 - 11:15LHR-ICN
18h 35m1 stop
Lufthansa Logo
13:30 - 21:00ICN-LHR
16h 30m1 stop
€495Lufthansa
Find Deal
Fri, 9 Jan - Sun, 18 Jan
Scandinavian Airlines Logo
17:00 - 19:00LHR-ICN
17h 00m1 stop
Scandinavian Airlines Logo
23:45 - 16:00ICN-LHR
25h 15m1 stop
€527Scandinavian Airlines
Find Deal
Thu, 29 Jan - Wed, 11 Feb
Scandinavian Airlines Logo
19:50 - 19:00LHR-ICN
38h 10m2 stops
Scandinavian Airlines Logo
23:45 - 14:35ICN-LHR
23h 50m2 stops
€529Scandinavian Airlines
Find Deal
Mon, 10 Nov - Mon, 17 Nov
Shenzhen Airlines Logo
22:05 - 13:40LHR-ICN
31h 35m1 stop
Shenzhen Airlines Logo
14:40 - 20:00ICN-LHR
37h 20m1 stop
€530Shenzhen Airlines
Find Deal
Mon, 29 Sep - Tue, 14 Oct
Shenzhen Airlines Logo
21:10 - 15:45LHR-ICN
33h 35m1 stop
Shenzhen Airlines Logo
14:55 - 19:10ICN-LHR
37h 15m1 stop
€532Shenzhen Airlines
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Fri, 31 Oct - Sat, 8 Nov
Logo
09:25 - 08:25LCY-ICN
15h 00m1 stop
Logo
12:25 - 08:10ICN-LCY
27h 45m1 stop
€662
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Tue, 9 Sep - Wed, 8 Oct
SWISS Logo
09:25 - 08:25LCY-ICN
15h 00m1 stop
SWISS Logo
10:05 - 18:45ICN-LCY
16h 40m1 stop
€667SWISS
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Tue, 9 Sep - Wed, 15 Oct
Logo
09:25 - 08:25LCY-ICN
15h 00m1 stop
Logo
12:25 - 08:10ICN-LCY
27h 45m1 stop
€790
Find Deal
Fri, 3 Oct - Mon, 13 Oct

SWISS flights from London to Seoul

Our best SWISS deals on London to Seoul flight tickets
SWISS
9 Sept
LCY09:25London City
15h 00m
1 stop
ICN08:25Incheon Intl
15 Oct
ICN10:05Incheon Intl
16h 40m
1 stop
LCY18:45London City
€667
Find similar
SWISS
25 Aug
LCY18:05London City
30h 20m
1 stop
ICN08:25Incheon Intl
3 Sept
ICN10:05Incheon Intl
39h 10m
1 stop
LCY17:15London City
€1,014
Find similar
SWISS
28 Aug
LCY19:20London City
29h 05m
1 stop
ICN08:25Incheon Intl
3 Sept
ICN10:05Incheon Intl
39h 10m
1 stop
LCY17:15London City
€1,107
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Lufthansa flights from London to Seoul

Our best Lufthansa deals on London to Seoul flight tickets
Lufthansa
21 Oct
LHR07:25London Heathrow
18h 30m
1 stop
ICN09:55Incheon Intl
29 Oct
ICN13:30Incheon Intl
18h 25m
1 stop
LHR22:55London Heathrow
€493
Find similar
Lufthansa
9 Jan
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl
18 Jan
ICN13:30Incheon Intl
16h 30m
1 stop
LHR21:00London Heathrow
€495
Find similar
Lufthansa
6 Jan
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl
21 Jan
ICN13:30Incheon Intl
18h 25m
1 stop
LHR22:55London Heathrow
€498
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 14 August 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

Tue 21/10

07:25-09:55

1 stop18h 30m

Incheon Intl

Wed 29/10

13:30-22:55

1 stop18h 25m

€493

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 11/9

22:40-16:35

1 stop33h 55m

Incheon Intl

Mon 22/9

10:40-20:30

1 stop17h 50m

€494

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 9/1

07:40-11:15

1 stop18h 35m

Incheon Intl

Sun 18/1

13:30-21:00

1 stop16h 30m

€495

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 29/1

17:00-19:00

1 stop17h 00m

Incheon Intl

Wed 11/2

23:45-16:00

1 stop25h 15m

€527

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 10/11

19:50-19:00

2 stops38h 10m

Incheon Intl

Mon 17/11

23:45-14:35

2 stops23h 50m

€529

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 29/9

22:05-13:40

1 stop31h 35m

Incheon Intl

Tue 14/10

14:40-20:00

1 stop37h 20m

€530

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 31/10

21:10-15:45

1 stop33h 35m

Incheon Intl

Sat 8/11

14:55-19:10

1 stop37h 15m

€532

LondonIncheon

LCY - ICN

LCYICN

London City

Tue 9/9

09:25-08:25

1 stop15h 00m

Incheon Intl

Wed 8/10

12:25-08:10

1 stop27h 45m

€662

LondonIncheon

LCY - ICN

LCYICN

London City

Tue 9/9

09:25-08:25

1 stop15h 00m

Incheon Intl

Wed 15/10

10:05-18:45

1 stop16h 40m

€667

LondonIncheon

LCY - ICN

LCYICN

London City

Fri 3/10

09:25-08:25

1 stop15h 00m

Incheon Intl

Mon 13/10

12:25-08:10

1 stop27h 45m

€790

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 €483, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Seoul, with average flight prices from London averaging around €522.

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 €1,045. 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 €1,310. 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 €789 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 €726 on momondo.

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

There are 1 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.

How have London to Seoul flight prices changed over time?

As of August 2025, prices for London to Seoul flights are approximately 28% 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

€373

Fastest flight time

12h 25m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from London in the past 72 hours is €373. The best return flight deal from London to Seoul found on momondo in the last 72 hours is €493.
The fastest flight from London to Seoul takes 12h 25m
Direct flights go from London to Seoul every day.
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