Cheap flights from London to Seoul from £304

LON — SEL
1 Nov — 8 Nov1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Seoul are usually found in January or November, booked 87 days in advance, depart on a Monday or Tuesday 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

Thu 29/1021:30 -
1 stop29h 55m
Thu 5/1113:30 -
1 stop37h 25m
Deal found 29/9£476
Tue 8/1221:30 -
1 stop29h 55m
Wed 16/1213:30 -
1 stop37h 25m
Deal found 2/10£477
Thu 29/1021:30 -
1 stop29h 55m
Wed 11/1113:30 -
1 stop37h 25m
Deal found 30/9£478
Mon 26/1010:30 -
1 stop24h 20m
Mon 9/1112:00 -
1 stop27h 30m
Deal found 1/10£478
Tue 1/1221:30 -
1 stop29h 55m
Wed 9/1213:30 -
1 stop37h 25m
Deal found 30/9£479
Mon 26/1021:30 -
1 stop29h 55m
Mon 9/1120:50 -
1 stop29h 40m
Deal found 1/10£488
Sat 14/1117:00 -
1 stop33h 00m
Mon 23/1112:00 -
1 stop27h 30m
Deal found 29/9£494
Fri 30/1021:30 -
1 stop29h 55m
Wed 11/1113:30 -
1 stop37h 25m
Deal found 29/9£500
Mon 23/1110:30 -
1 stop16h 25m
Thu 26/1118:25 -
1 stop21h 05m
Deal found 1/10£506
Sat 7/1121:00 -
1 stop33h 20m
Sun 15/1120:50 -
2 stops29h 40m
Deal found 2/10£507
Mon 26/1021:00 -
1 stop14h 45m
Mon 9/1120:50 -
2 stops29h 40m
Deal found 2/10£507
Fri 30/1006:10 -
2 stops24h 10m
Fri 6/1116:20 -
1 stop23h 10m
Deal found 2/10£507

Find flight deals from London to Seoul

Round-trip from

£476

One-way from

£304

Popular in

July

Cheapest in

January

Average price

£663

Good round-trip deal

£798 or less

Good one-way deal

£556 or less
China Southern
  • China Southern
  • 29/10-5/11
  • 2 total stops
  • 67h 20m total
  • London to Seoul
China Southern
  • China Southern
  • 16/11-31/12
  • 1 total stop
  • 29h 55m total
  • London to Seoul
Highest demand for flights based on searches. 11% 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 October 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

LHR London Heathrow - GMP Seoul Gimpo Intl

LHRGMP

London Heathrow

Sun 25/10

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£314

LondonSeoul

LGW London Gatwick - GMP Seoul Gimpo Intl

LGWGMP

London Gatwick

Wed 28/10

10:30-09:20

2 stops37h 50m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£344

LondonIncheon

LGW London Gatwick - ICN Incheon Intl

LGWICN

London Gatwick

Sat 12/12

16:40-14:50

1 stop37h 10m

Incheon Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£349

LondonSeoul

LGW London Gatwick - GMP Seoul Gimpo Intl

LGWGMP

London Gatwick

Fri 13/11

19:10-12:25

2 stops32h 15m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£349

LondonSeoul

LHR London Heathrow - GMP Seoul Gimpo Intl

LHRGMP

London Heathrow

Fri 30/10

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£351

LondonSeoul

LGW London Gatwick - GMP Seoul Gimpo Intl

LGWGMP

London Gatwick

Wed 11/11

11:35-14:45

1 stop18h 10m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£352

LondonSeoul

LGW London Gatwick - GMP Seoul Gimpo Intl

LGWGMP

London Gatwick

Wed 9/12

06:35-13:05

2 stops21h 30m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£352

LondonIncheon

LTN London Luton - ICN Incheon Intl

LTNICN

London Luton

Fri 23/10

15:15-16:00

3 stops40h 45m

Incheon Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£355

LondonSeoul

LHR London Heathrow - GMP Seoul Gimpo Intl

LHRGMP

London Heathrow

Wed 28/10

21:30-09:05

2 stops26h 35m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£358

LondonIncheon

LTN London Luton - ICN Incheon Intl

LTNICN

London Luton

Tue 13/10

06:35-16:00

2 stops25h 25m

Incheon Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£360

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 60 resultsSorted by cheapest first
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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 £473). Flying from London to Seoul in July is currently the most expensive (average of £812). 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 19% 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 Monday, which is when the least amount of flights are scheduled (5 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 £519 and £870 in October.
The cheapest return price found within the last 5 days was £476 on China Southern (29 Oct–5 Nov).

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

Beijing (PEK) – chosen by Cheapflights users on 26% of one-stop itineraries from London to Seoul on Cheapflights.

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

Beijing (PEK) is the most affordable one-stop option, with an average return flight price of £396.

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 05m.

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 23m.

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, andAir China 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.

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

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.

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

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.

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

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.

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

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.

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

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.

Entertainment

8.2

Overall

8.4

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

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 14h 05m. There are 5487 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 £143, was found to be the cheapest airline from London to Seoul.Alternate airlines flying return to your destination include China Southern and Air China. 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 £240 on China Eastern. Other airlines that offer cheap prices include China Southern from £255 and Air China from £258 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: Korean Air (95%), Virgin Atlantic (95%), Asiana Airlines( 93%).

  • What are the cheapest flights from London to Seoul?

    While on average a flight from London to Seoul is generally £1,900, our data shows the cheapest flight currently is £533. When looking at the most popular route, (London Heathrow - Incheon Intl), you can expect to pay £407 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 £473). Flying from London to Seoul in July is currently the most expensive (average of £812). 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£143Average£362FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£370Average£536FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£384Average£482FlexibilityNo cancel feeOn-time67%
Search Air China flights
Cathay PacificCheapest£412Average£933FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
KLMCheapest£433Average£834FlexibilityNo cancel feeOn-time75%
Search KLM flights
Shenzhen AirlinesCheapest£443Average£523FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
LufthansaCheapest£444Average£636FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Etihad AirwaysCheapest£492Average£629FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest£493Average£815FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Air FranceCheapest£498Average£676FlexibilityNo 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.

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