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Cheap flights from Seoul to London from £145

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LON
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seoul to London are usually found in March or June, booked 90 days in advance, depart on a Thursday or Sunday and return on a Tuesday

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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 14 November 2025.

Tue 16/1214:25GMP - LGW
1 stop24h 10mAir China
Mon 5/111:05LGW - GMP
2 stops41h 00mAir China
Deal found 13/11£392
Tue 16/1214:25GMP - LHR
1 stop34h 30mAir China
Mon 5/120:25LHR - GMP
1 stop31h 40mAir China
Deal found 13/11£395
Tue 23/1214:25GMP - LGW
1 stop24h 10mAir China
Fri 16/111:35LGW - GMP
1 stop16h 30mAir China
Deal found 13/11£399
Sun 14/1214:25GMP - LGW
2 stops25h 30mAir China
Mon 5/111:05LGW - GMP
2 stops41h 00mAir China
Deal found 13/11£400
Wed 26/1120:50GMP - LHR
1 stop29h 40mChina Eastern
Sun 30/1121:00LHR - GMP
1 stop29h 00mChina Eastern
Deal found 12/11£404
Tue 16/1214:25GMP - LGW
1 stop24h 10mAir China
Wed 7/111:35LGW - GMP
1 stop16h 30mAir China
Deal found 13/11£404
Fri 12/1214:25GMP - LGW
3 stops32h 15mMultiple Airlines
Tue 16/1206:45LGW - GMP
2 stops21h 20mMultiple Airlines
Deal found 12/11£406
Thu 18/1213:30GMP - LHR
1 stop37h 25mChina Southern
Wed 7/121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 13/11£410
Sun 14/1214:25GMP - LGW
2 stops25h 30mAir China
Wed 7/111:35LGW - GMP
1 stop16h 30mAir China
Deal found 13/11£412
Wed 17/1214:25GMP - LHR
1 stop34h 30mAir China
Mon 5/120:25LHR - GMP
1 stop31h 40mAir China
Deal found 12/11£414
Fri 19/1214:25GMP - LHR
1 stop34h 30mAir China
Wed 7/117:40LHR - GMP
1 stop34h 25mAir China
Deal found 13/11£415
Wed 17/1220:50GMP - LHR
1 stop29h 40mMultiple Airlines
Tue 6/117:40LHR - GMP
1 stop34h 25mMultiple Airlines
Deal found 12/11£423

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 14 November 2025.

Round-trip from

£392

One-way from

£145

Popular in

October

Cheapest in

March

Average price

£527

Good round-trip deal

£531 or less

Good one-way deal

£287 or less
Air China
  • Air China
  • 16/12-5/1
  • 3 total stops
  • 65h 10m total
  • Seoul to London
Search Deals
13/12
  • 13/12
  • 3 total stops
  • 30h 15m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 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 14 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 - LGW

GMPLGW

Seoul Gimpo Intl

Wed 21/1

14:25-14:15

2 stops32h 50m

London Gatwick

Wed 28/1

21:05-13:05

2 stops31h 00m

£392

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Wed 21/1

14:25-06:55

2 stops25h 30m

London Gatwick

Wed 28/1

11:35-13:05

1 stop16h 30m

£396

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Tue 23/12

14:25-05:35

1 stop24h 10m

London Gatwick

Fri 16/1

11:35-13:05

1 stop16h 30m

£399

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Sun 14/12

14:25-06:55

2 stops25h 30m

London Gatwick

Mon 5/1

11:05-13:05

2 stops41h 00m

£400

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Thu 18/12

14:25-06:55

2 stops25h 30m

London Gatwick

Mon 5/1

11:05-13:05

2 stops41h 00m

£400

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 26/11

20:50-17:30

1 stop29h 40m

London Heathrow

Sun 30/11

21:00-11:00

1 stop29h 00m

£404

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Tue 12/5

14:25-06:35

1 stop24h 10m

London Gatwick

Thu 11/6

12:35-13:05

1 stop16h 30m

£407

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Thu 18/12

14:25-06:55

2 stops25h 30m

London Gatwick

Wed 7/1

11:35-13:05

1 stop16h 30m

£412

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Wed 21/1

10:45-23:10

1 stop21h 25m

London Luton

Wed 28/1

14:00-18:20

1 stop19h 20m

£435

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 23/12

14:25-15:55

1 stop34h 30m

London Heathrow

Fri 16/1

21:30-12:25

1 stop29h 55m

£442

Flights are sorted by cheapest return flights first.

Deals found on 13/11

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 7 November 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 90 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 £111). Flying from Seoul to London in August is currently the most expensive (average of £561). 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 14 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 14 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).

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 £377.

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 14 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
486 reviews
Check prices

Crew

8.6

Comfort

8.1

Entertainment

7.8

Food

8.1

Overall

8.2

Boarding

8.4

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
486 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Comfort

8.1

Entertainment

7.8

Food

8.1

Overall

8.2

Boarding

8.4

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
486 reviews
Check prices

Crew

8.6

Comfort

8.1

Entertainment

7.8

Food

8.1

Overall

8.2

Boarding

8.4

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
177 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Comfort

8.1

Entertainment

7.8

Food

8.1

Overall

8.2

Boarding

8.4

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
121 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Comfort

8.1

Entertainment

7.8

Food

8.1

Overall

8.2

Boarding

8.4

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
7,572 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Comfort

8.1

Entertainment

7.8

Food

8.1

Overall

8.2

Boarding

8.4

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 Etihad Airways can get you from Seoul to London in just under 21h 50m. Your travel time can differ by up to 7h 50m. The distance between Seoul and London is about 5503 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 £361. Other airlines that can offer you cheap pricing are Asiana Airlines, from £513, and Korean Air, from £737. 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 China Eastern, which is currently one of the cheapest options available, starting at £150. Air China flights start at £152 while deals on Malaysia Airlines start at £216 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 Gatwick and Incheon Intl - London Stansted.

  • 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 £751, our data indicates the cheapest price to be £286. The most popular route (Incheon Intl - London Heathrow), is priced around £347.

  • 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 £111). Flying from Seoul to London in August is currently the most expensive (average of £561). 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
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Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£361Average£690FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£513Average£749FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£737Average£837FlexibilityNo 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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