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Cheap flights from Seoul to London from £151

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LON
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seoul to London are usually found in June or December, booked 63 days in advance, depart on a Thursday or Sunday and return on a Tuesday

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Enter your travel dates to find the best prices.

Cheapest flights from Seoul to London
Explore the most affordable flight options available from Seoul to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Tue 18/1114:25GMP - LHR
1 stop34h 30mAir China
Sat 22/1120:25LHR - GMP
1 stop31h 40mAir China
Deal found 5/11£404
Thu 20/1114:25GMP - LHR
1 stop36h 25mMultiple Airlines
Mon 24/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 6/11£407
Wed 19/1114:25GMP - LHR
1 stop36h 25mMultiple Airlines
Sun 23/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 5/11£409
Tue 2/1214:25GMP - LGW
2 stops35h 45mMultiple Airlines
Tue 16/1206:45LGW - GMP
2 stops21h 20mMultiple Airlines
Deal found 6/11£410
Wed 12/1114:25GMP - LHR
1 stop34h 30mMultiple Airlines
Sun 16/1121:00LHR - GMP
1 stop29h 00mMultiple Airlines
Deal found 5/11£413
Sat 6/1214:25GMP - LGW
2 stops31h 00mMultiple Airlines
Sat 13/1206:50LGW - GMP
2 stops21h 15mMultiple Airlines
Deal found 5/11£418
Thu 13/1114:25GMP - LHR
1 stop34h 30mAir China
Sun 23/1120:25LHR - GMP
1 stop31h 40mAir China
Deal found 6/11£419
Wed 3/1214:25GMP - LGW
2 stops32h 45mMultiple Airlines
Sun 7/1206:50LGW - GMP
2 stops21h 15mMultiple Airlines
Deal found 5/11£422
Sat 22/1114:25GMP - LGW
2 stops25h 30mAir China
Fri 28/1111:05LGW - GMP
2 stops41h 00mAir China
Deal found 6/11£422
Wed 19/1114:25GMP - LHR
1 stop34h 30mMultiple Airlines
Wed 26/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 4/11£424
Fri 28/1109:45GMP - LGW
2 stops29h 45mMultiple Airlines
Sun 30/1117:00LGW - GMP
1 stop17h 50mMultiple Airlines
Deal found 6/11£428
Thu 13/1114:25GMP - LHR
1 stop34h 30mMultiple Airlines
Wed 26/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 5/11£432

Cheap flight deals from Seoul to London

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to London (LON). 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 7 November 2025.

Round-trip from

£404

One-way from

£151

Popular in

October

Cheapest in

June

Average price

£513

Good round-trip deal

£534 or less

Good one-way deal

£289 or less
Air China
  • Air China
  • 18/11-22/11
  • 2 total stops
  • 66h 10m total
  • Seoul to London
Search Deals
China Southern
  • China Southern
  • 4/2
  • 1 total stop
  • 18h 10m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to London (LON).
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seoul to London 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 7 November 2025.
Use the filters below to find and compare flights from Seoul to London that are best for you.

Fly from

Seoul

Fly to

London

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 18/11

14:25-15:55

1 stop34h 30m

London Heathrow

Sat 22/11

20:25-13:05

1 stop31h 40m

£404

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 20/11

14:25-17:50

1 stop36h 25m

London Heathrow

Mon 24/11

21:30-12:25

1 stop29h 55m

£407

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Tue 2/12

14:25-17:10

2 stops35h 45m

London Gatwick

Tue 16/12

06:45-13:05

2 stops21h 20m

£410

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 18/11

14:25-17:50

1 stop36h 25m

London Heathrow

Thu 27/11

21:30-12:25

1 stop29h 55m

£413

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Sat 6/12

14:25-12:25

2 stops31h 00m

London Gatwick

Sat 13/12

06:50-13:05

2 stops21h 15m

£418

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Fri 28/11

09:45-06:30

2 stops29h 45m

London Gatwick

Sun 30/11

17:00-19:50

1 stop17h 50m

£428

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 2/3

14:25-15:55

1 stop34h 30m

London Heathrow

Wed 11/3

17:40-13:05

1 stop34h 25m

£434

IncheonLondon

ICN - SEN

ICNSEN

Incheon Intl

Sat 13/12

13:10-12:15

2 stops32h 05m

London Southend

Sun 21/12

07:10-21:55

2 stops29h 45m

£457

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Thu 5/3

16:10-06:30

1 stop23h 20m

London Gatwick

Sun 8/3

10:30-20:45

1 stop25h 15m

£483

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 28/1

23:45-16:25

2 stops25h 40m

London Heathrow

Wed 4/2

19:50-19:00

2 stops38h 10m

£493

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Best time to book a flight from Seoul to London

Have a flexible travel schedule? Discover the best time to fly to London from Seoul 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 Seoul to London

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

Use this chart to determine the optimal time to book a return flight from Seoul to London. Price data was last updated on 31 October 2025.

The price you pay for your flight from Seoul to London may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Seoul to London (average of £112). Flying from Seoul to London in August is currently the most expensive (average of £564). 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 SEL to LON?

Find hourly flight availability from Seoul to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

One of the essential ways to save on airfare from Seoul to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 23% on airfare.

Weekly flight availability from Seoul to London

Explore weekly flight availability from Seoul to London. 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 7 November 2025.

The most flights from SEL to LON 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).

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

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

Share of one-stop return flights from Seoul to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Shanghai (PVG) – chosen by Cheapflights users on 32% of one-stop itineraries from Seoul to London on Cheapflights.

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

Average return fare for one-stop flights from Seoul to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Zhengzhou (CGO) is the most affordable one-stop option, with an average return flight price of £379.

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

Shortest average travel time for one-stop one-way flights from Seoul to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Beijing (PEK) have the shortest average one-way travel time for one-stop routes: 14h 05m.

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

Average stopover duration for one-stop one-way flights from Seoul to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Abu Dhabi (AUH) offer the fastest connection on this route, with an average stopover time of 1h 15m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 7 November 2025.
Check out reviews from past customers who have flown with Asiana Airlines, China Southern, andChina Eastern from Seoul to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Asiana Airlines
8.2
Very Good
485 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Overall

8.2

Crew

8.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Yony,Sept 2025

MNL - ICN

Clean airplanes, crew very helpful and plane was on time. I did not like the food choices.
Asiana Airlines
8.2
Very Good
485 reviews
Asiana Airlines
8.2
Very Good
485 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Overall

8.2

Crew

8.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Yony,Sept 2025

MNL - ICN

Clean airplanes, crew very helpful and plane was on time. I did not like the food choices.
China Southern
7.5
Good
119 reviews
Asiana Airlines
8.2
Very Good
485 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Overall

8.2

Crew

8.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Yony,Sept 2025

MNL - ICN

Clean airplanes, crew very helpful and plane was on time. I did not like the food choices.
China Eastern
7.2
Good
174 reviews
Asiana Airlines
8.2
Very Good
485 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Overall

8.2

Crew

8.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Yony,Sept 2025

MNL - ICN

Clean airplanes, crew very helpful and plane was on time. I did not like the food choices.
Air China
7.1
Good
122 reviews
Asiana Airlines
8.2
Very Good
485 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Overall

8.2

Crew

8.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Yony,Sept 2025

MNL - ICN

Clean airplanes, crew very helpful and plane was on time. I did not like the food choices.
Lufthansa
6.8
Okay
7,558 reviews
Asiana Airlines
8.2
Very Good
485 reviews
Check prices

Entertainment

7.8

Food

8.1

Boarding

8.4

Overall

8.2

Crew

8.6

Comfort

8.1

Reviews

1 / 20
10.0
Excellent

Yony,Sept 2025

MNL - ICN

Clean airplanes, crew very helpful and plane was on time. I did not like the food choices.

Related info for your journey

Find useful and relevant information for your journey from Seoul to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seoul to London?

    Air China, China Eastern, and Scandinavian Airlines can get you from Seoul to London in just under 23h 20m. Your travel time can differ by up to 11h 10m. The distance between Seoul and London is about 5512 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Seoul to London round-trip from £363. Other airlines that can offer you cheap pricing are Asiana Airlines, from £516, and Korean Air, from £740. China Eastern is priced at 40% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Air China, which is currently one of the cheapest options available, starting at £154. China Eastern flights start at £177 while deals on Hainan Airlines start at £206 one-way.

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

    The most popular flight routes from Seoul to London are Incheon Intl - London Heathrow, Incheon Intl - London Stansted and Incheon Intl - London Gatwick.

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

    The top 3 most reliable airlines when flying from Seoul to London are Virgin Atlantic (41%), Korean Air (32%) and Asiana Airlines (18%).

  • What are the cheapest flights from Seoul to London?

    Looking for the cheapest flight from Seoul to London? While on average our users pay £755, our data indicates the cheapest price to be £288. The most popular route (Incheon Intl - London Heathrow), is priced around £382.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seoul to London 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 Seoul to London?

    Currently, September is the cheapest month in which you can book a flight from Seoul to London (average of £112). Flying from Seoul to London in August is currently the most expensive (average of £564). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Luton
Ilford
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Deal
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Ipswich
Bedford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Seoul to London

Discover the top 3 airlines that operate flights from Seoul to London. 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£363Average£693FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£516Average£752FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£740Average£841FlexibilityNo cancel feeOn-time81%
Search Korean Air 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 Seoul to London?

When you search for this flight from Seoul to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Seoul to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to London from Seoul shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Seoul to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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