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Cheap flights from London to Seoul from £284

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEL
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London to Seoul are usually found in November or March, booked 12 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from London to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 June 2025.

Round-trip from

£430

One-way from

£284

Popular in

August

Cheapest in

November

Average price

£511

Good round-trip deal

£932 or less

Good one-way deal

£558 or less
China Southern
  • China Southern
  • 1/9-13/10
  • 2 total stops
  • 68h 00m total
  • London to Seoul
24/9
  • 24/9
  • 2 total stops
  • 23h 05m total
  • London to Seoul
Highest demand for flights based on searches. 19% potential increase in price (£102 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in June 2025
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).

Find flight deals from London to Seoul

Cheapest flights from London to Seoul
Explore the most affordable flight options available from London to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Mon 1/921:00LHR - GMP
1 stop31h 25mChina Southern
Mon 13/1013:30GMP - LHR
1 stop36h 35mChina Southern
Deal found 12/6£430
Fri 19/912:35LGW - GMP
1 stop16h 30mAir China
Sat 11/1014:25GMP - LGW
1 stop24h 10mAir China
Deal found 10/6£430
Tue 11/1117:40LHR - GMP
1 stop34h 25mAir China
Sun 30/1114:25GMP - LHR
1 stop34h 30mAir China
Deal found 12/6£449
Wed 10/906:00STN - ICN
2 stops30h 45mMultiple Airlines
Wed 17/908:55ICN - STN
2 stops34h 35mMultiple Airlines
Deal found 10/6£451
Fri 31/1008:45LHR - ICN
1 stop17h 30mLufthansa
Wed 12/1113:05ICN - LHR
2 stops18h 50mLufthansa
Deal found 11/6£451
Mon 27/1021:30LHR - ICN
1 stop15h 55mChina Southern
Thu 6/1109:25ICN - LHR
1 stop17h 30mChina Southern
Deal found 12/6£454
Sun 15/619:00LGW - GMP
1 stop32h 00mChina Eastern
Wed 18/612:00GMP - LGW
1 stop35h 00mChina Eastern
Deal found 10/6£454
Sat 1/1120:25LGW - ICN
1 stop16h 20mChina Southern
Fri 21/1122:45ICN - LGW
1 stop27h 35mChina Southern
Deal found 12/6£456
Mon 27/1021:10LHR - ICN
1 stop31h 45mShenzhen Airlines
Sat 15/1114:55ICN - LHR
1 stop37h 15mShenzhen Airlines
Deal found 11/6£459
Thu 6/1110:30LGW - ICN
2 stops25h 10mChina Eastern
Mon 29/1211:55ICN - LGW
2 stops27h 35mChina Eastern
Deal found 12/6£463
Thu 12/618:30LHR - ICN
1 stop15h 10mMultiple Airlines
Sun 15/617:25ICN - LHR
1 stop33h 50mMultiple Airlines
Deal found 11/6£468
Tue 21/1022:00LHR - ICN
1 stop30h 55mAir China
Tue 28/1017:50ICN - LHR
1 stop31h 05mAir China
Deal found 12/6£476

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from London to Seoul that are best for you.

Fly from

London

Fly to

Seoul

Route

Depart

Return

Price

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 1/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Mon 13/10

13:30-18:05

1 stop36h 35m

£430

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Fri 19/9

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sat 11/10

14:25-06:35

1 stop24h 10m

£430

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 11/11

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Sun 30/11

14:25-15:55

1 stop34h 30m

£449

LondonIncheon

STN - ICN

STNICN

London Stansted

Wed 10/9

06:00-20:45

2 stops30h 45m

Incheon Intl

Wed 17/9

08:55-11:30

2 stops34h 35m

£451

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 31/10

08:45-11:15

1 stop17h 30m

Incheon Intl

Wed 12/11

13:05-22:55

2 stops18h 50m

£451

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 27/10

21:30-22:25

1 stop15h 55m

Incheon Intl

Thu 6/11

09:25-17:55

1 stop17h 30m

£454

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 26/9

22:05-13:40

1 stop31h 35m

Incheon Intl

Fri 10/10

16:40-19:50

1 stop35h 10m

£456

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Sat 1/11

20:25-21:45

1 stop16h 20m

Incheon Intl

Fri 21/11

22:45-17:20

1 stop27h 35m

£456

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Thu 6/11

10:30-20:40

2 stops25h 10m

Incheon Intl

Mon 29/12

11:55-06:30

2 stops27h 35m

£463

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Wed 10/9

09:00-20:45

2 stops27h 45m

Incheon Intl

Wed 17/9

20:15-22:55

3 stops34h 40m

£475

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 58 results
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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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from London to Seoul. Price data was last updated on 9 June 2025.

To ensure you get the cheapest price possible for a flight from London to Seoul, you should look to book at least 12 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.

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

Currently, November is the cheapest month in which you can book a flight from London to Seoul (average of £656). Flying from London to Seoul in July is currently the most expensive (average of £1,140). 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?

Find hourly flight availability from London to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

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 afternoon tend to be the most expensive. A flight at midday could potentially save you up to 25% on airfare.

What is the cheapest day to fly from London to Seoul?

Use this chart to determine the cheapest time to fly return from London to Seoul. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Seoul flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to Seoul

Explore weekly flight availability from London to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 June 2025.

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

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated 13 June 2025.
Read through reviews of airlines operating flights from London to Seoul, such as ANA, Hainan Airlines and KLM. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.3

Comfort

8.2

Entertainment

7.9

Food

7.7

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
8.3
Very Good

Overall

8.3

Comfort

8.2

Entertainment

7.9

Food

7.7

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Overall

8.3

Comfort

8.2

Entertainment

7.9

Food

7.7

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Overall

8.3

Comfort

8.2

Entertainment

7.9

Food

7.7

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Overall

8.3

Comfort

8.2

Entertainment

7.9

Food

7.7

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Overall

8.3

Comfort

8.2

Entertainment

7.9

Food

7.7

Boarding

8.5

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

Related info for your journey

Find useful and relevant information for your journey from London to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from London to Seoul round-trip?

    China Southern, at £430, was found to be the cheapest airline from London to Seoul.Alternate airlines flying return to your destination include Air China and China Eastern. Users have found that China Southern is 24% 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 £296 on Air China. Other airlines that offer cheap prices include Hainan Airlines from £297 and China Southern from £300 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 (80%), Korean Air (80%), Virgin Atlantic( 80%).

  • What are the cheapest flights from London to Seoul?

    While on average a flight from London to Seoul is generally £2,359, our data shows the cheapest flight currently is £547. When looking at the most popular route, (London Heathrow - Incheon Intl), you can expect to pay £387 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?

    Summer Palace, Forbidden City, and The Antiquarium of the Palace Museum are the most popular attractions in Beijing if you're in need of something to do during your stopover. Summer Palace, Forbidden City, and The Antiquarium of the Palace Museum can be visited by traveling about 17.3 mi, 15.1 mi, and 14.9 mi respectively from Beijing Capital.

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

    The majority of Shanghai visitors spend their time at Shanghai Disneyland, Shanghai Grand Theatre, and French Concession. Travellers on a stopover in Shanghai can visit Shanghai Disneyland, Shanghai Grand Theatre, and French Concession, by travelling 8.7 mi, 20.6 mi, and 20.4 mi, respectively after landing at Shanghai Pu Dong.

  • What are points of interest worth seeing during a stopover in Beijing?

    If you're on a stopover in Beijing and looking for things to do, consider visiting Summer Palace, Forbidden City, or The Antiquarium of the Palace Museum. Summer Palace, Forbidden City, and The Antiquarium of the Palace Museum can be visited by travelling about 34.6 mi, 28.1 mi, and 28.2 mi respectively from 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, November is the cheapest month in which you can book a flight from London to Seoul (average of £656). Flying from London to Seoul in July is currently the most expensive (average of £1,140). 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

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Fly from London to Seoul on these airlines

Choose from the following airlines for your flight from London to Seoul. Flights are based on user searches made on Cheapflights and were last updated on 13 June 2025.

Top 10 airlines flying from London to Seoul

Discover the top 10 airlines that operate flights from London to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£316Average£413FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£333Average£408FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£340Average£568FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£417Average£456FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
LufthansaCheapest£445Average£640FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
LOTCheapest£517Average£718FlexibilityNo cancel feeOn-time81%
Search LOT flights
Etihad AirwaysCheapest£517Average£650FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
FinnairCheapest£537Average£704FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Turkish AirlinesCheapest£537Average£668FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air FranceCheapest£542Average£740FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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