Cheap flights from London to Seoul from £229

LON — SEL
25 Sep — 2 Oct1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Seoul are usually found in January or November, booked 68 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from London to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from London to Seoul

Fri 4/911:35 -
1 stop24h 15m
Sun 6/912:00 -
1 stop35h 00m
Deal found 24/8£490
Mon 26/1021:30 -
1 stop29h 55m
Thu 5/1113:30 -
1 stop37h 25m
Deal found 25/8£495
Thu 3/918:00 -
1 stop17h 50m
Sun 6/920:50 -
1 stop26h 10m
Deal found 21/8£499
Tue 29/921:20 -
1 stop29h 40m
Tue 13/1020:50 -
1 stop29h 50m
Deal found 24/8£501
Tue 29/921:20 -
1 stop29h 40m
Fri 13/1120:50 -
1 stop29h 40m
Deal found 21/8£503
Thu 27/818:00 -
1 stop33h 00m
Thu 10/912:00 -
1 stop35h 00m
Deal found 23/8£504
Tue 13/1021:00 -
1 stop31h 25m
Tue 20/1013:30 -
1 stop36h 35m
Deal found 23/8£506
Wed 23/918:00 -
1 stop18h 45m
Fri 16/1014:15 -
2 stops32h 45m
Deal found 25/8£507
Mon 28/921:20 -
1 stop33h 50m
Tue 27/1020:50 -
2 stops29h 40m
Deal found 25/8£508
Wed 23/911:00 -
1 stop26h 50m
Thu 15/1016:45 -
1 stop21h 45m
Deal found 25/8£508
Tue 13/1021:00 -
1 stop31h 25m
Wed 4/1113:30 -
1 stop37h 25m
Deal found 24/8£509
Mon 9/1121:00 -
1 stop29h 00m
Mon 23/1120:50 -
1 stop29h 40m
Deal found 21/8£510

Find flight deals from London to Seoul

Round-trip from

£495

One-way from

£229

Popular in

July

Cheapest in

January

Average price

£734

Good round-trip deal

£800 or less

Good one-way deal

£553 or less
China Southern
  • China Southern
  • 26/10-5/11
  • 2 total stops
  • 67h 20m total
  • London to Seoul
14/9
  • 14/9
  • 2 total stops
  • 35h 50m total
  • London to Seoul
Highest demand for flights based on searches. 12% potential increase in price (£65 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in August 2026
Price to beat on a round-trip flight from London (LON) to Seoul (SEL).
Price to beat on a one-way flight from London (LON) to Seoul (SEL).

Cheapflights Fare Finder

 
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

Cheapest return flight

LondonSeoul

LGW London Gatwick - GMP Seoul Gimpo Intl

LGWGMP

London Gatwick

Mon 16/11

10:30-19:50

1 stop24h 20m

Seoul Gimpo Intl

Sun 22/11

20:50-14:00

1 stop26h 10m

£534

LondonIncheon

SEN London Southend - ICN Incheon Intl

SENICN

London Southend

Thu 5/11

14:10-22:10

2 stops23h 00m

Incheon Intl

Fri 20/11

09:25-22:00

2 stops21h 35m

£563

LondonIncheon

LHR London Heathrow - ICN Incheon Intl

LHRICN

London Heathrow

Wed 17/2

06:35-11:00

2 stops19h 25m

Incheon Intl

Sun 21/2

12:55-20:50

1 stop16h 55m

£577

LondonIncheon

SEN London Southend - ICN Incheon Intl

SENICN

London Southend

Wed 21/10

16:50-22:10

2 stops21h 20m

Incheon Intl

Tue 27/10

20:50-16:40

2 stops28h 50m

£584

LondonIncheon

LTN London Luton - ICN Incheon Intl

LTNICN

London Luton

Thu 10/9

15:15-22:00

2 stops22h 45m

Incheon Intl

Tue 13/10

16:20-11:00

2 stops26h 40m

£586

LondonIncheon

LHR London Heathrow - ICN Incheon Intl

LHRICN

London Heathrow

Fri 11/9

21:00-22:10

1 stop17h 10m

Incheon Intl

Sun 13/9

13:05-20:25

1 stop15h 20m

£587

LondonIncheon

LTN London Luton - ICN Incheon Intl

LTNICN

London Luton

Tue 6/10

16:10-22:15

2 stops22h 05m

Incheon Intl

Tue 13/10

19:40-14:35

2 stops26h 55m

£592

LondonIncheon

LHR London Heathrow - ICN Incheon Intl

LHRICN

London Heathrow

Mon 23/11

15:35-19:00

2 stops18h 25m

Incheon Intl

Fri 27/11

23:45-16:25

2 stops25h 40m

£595

LondonIncheon

LGW London Gatwick - ICN Incheon Intl

LGWICN

London Gatwick

Fri 11/9

11:35-15:10

1 stop19h 35m

Incheon Intl

Sun 13/9

16:20-15:00

1 stop30h 40m

£600

LondonSeoul

LGW London Gatwick - GMP Seoul Gimpo Intl

LGWGMP

London Gatwick

Mon 16/11

11:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sat 21/11

14:25-06:20

1 stop24h 55m

£601

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from London to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from London with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London to Seoul

What is the cheapest month to book a flight from London to Seoul?

Currently, January is the cheapest month in which you can book a flight from London to Seoul (average of £447). Flying from London to Seoul in July is currently the most expensive (average of £786). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to SEL?

One of the essential ways to save on airfare from London to Seoul is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 21% on airfare.

Weekly flight availability from London to Seoul

The most flights from LON to SEL are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost for a return flight from London to Seoul?

Airfare is below average for this route at the moment.
London to Seoul flights typically cost between £552 and £828 in October.
The cheapest return price found within the last 5 days was £495 on China Southern (26 Oct–5 Nov).

What’s the top stopover airport for flights from London to Seoul?

Beijing (PEK) – chosen by Cheapflights users on 27% of one-stop itineraries from London to Seoul on Cheapflights.

What’s the cheapest stopover airport for flights from London to Seoul?

Chengdu (TFU) is the most affordable one-stop option, with an average return flight price of £377.

What’s the fastest stopover option from London to Seoul?

Flights via Zurich (ZRH) have the shortest average one-way travel time for one-stop routes: 14h 35m.

Which airport typically offers the quickest stopover for flights from London to Seoul?

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 30m.

How often are flights from London to Seoul delayed?

About 0% of weekly flights between London and Seoul have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for London to Seoul flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

How far ahead should I book a flight from London to Seoul?

To ensure you get the cheapest price possible for a flight from London to Seoul, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Seoul

See what other customers who have flown with Korean Air,Asiana Airlines, andVirgin Atlantic from London to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Boarding

8.5

Comfort

8.3

Overall

8.4

Crew

8.7

Entertainment

8.2

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

  • How long is the flight from London to Seoul?

    Departing from London to Seoul will take you 18h 25m. There are 5503 mi between London and Seoul. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London to Seoul round-trip?

    China Eastern, at £139, was found to be the cheapest airline from London to Seoul.Alternate airlines flying return to your destination include Qatar Airways and China Southern. Users have found that China Eastern is 77% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London to Seoul one-way?

    One-way options have recently been found by users for as low as £214 on China Eastern. Other airlines that offer cheap prices include China Southern from £247 and Air China from £268 one-way.

  • What are the most popular routes from London to Seoul?

  • What are the most reliable airlines from London to Seoul?

    Before booking your flight to Seoul from London, check out the most reliable airlines to get you to your destination on time: Asiana Airlines (95%), Korean Air (91%), Virgin Atlantic( 91%).

  • What are the cheapest flights from London to Seoul?

    While on average a flight from London to Seoul is generally £1,554, our data shows the cheapest flight currently is £473. When looking at the most popular route, (London Heathrow - Incheon Intl), you can expect to pay £442 for that flight.

  • Where are the most common stopover locations when flying from London to Seoul?

  • What are some popular things to do or see while on a stopover in Beijing?

    Forbidden City, The Antiquarium of the Palace Museum, and Zhengyangmen are the most popular attractions in Beijing if you're in need of something to do during your stopover. Forbidden City, The Antiquarium of the Palace Museum, and Zhengyangmen can be visited by traveling about 15.1 mi, 14.9 mi, and 15.9 mi respectively from Beijing Capital.

  • What are some popular points of interest to see during a stopover in Beijing?

    The majority of Beijing visitors spend their time at Forbidden City, The Antiquarium of the Palace Museum, and Zhengyangmen. Travellers on a stopover in Beijing can visit Forbidden City, The Antiquarium of the Palace Museum, and Zhengyangmen, by travelling 28.1 mi, 28.2 mi, and 27.0 mi, respectively after landing at Beijing Daxing Intl.

  • Where are the least popular stopover locations for London to Seoul flights?

  • Can I find deals for flights from London to Seoul that include hotel bookings?

    Yes. In addition to deals on London to Seoul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Seoul.

  • Can I find deals for business class flights from London to Seoul?

    Yes. Cheapflights offers flight deals from London to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Seoul?

    Currently, January is the cheapest month in which you can book a flight from London to Seoul (average of £447). Flying from London to Seoul in July is currently the most expensive (average of £786). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Fly from London to Seoul on these airlines

Top 10 airlines flying from London to Seoul

AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£139Average£350FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Qatar AirwaysCheapest£302Average£786FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
China SouthernCheapest£361Average£530FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£372Average£468FlexibilityNo cancel feeOn-time67%
Search Air China flights
Cathay PacificCheapest£400Average£905FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
KLMCheapest£420Average£822FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£424Average£599FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£474Average£696FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Etihad AirwaysCheapest£477Average£610FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£482Average£659FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Seoul?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Seoul. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Seoul?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seoul from London.

Can Cheapflights find flights from London to Seoul with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Seoul, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from London to Seoul become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seoul from London today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.