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Cheap flights from Seoul to London from £166

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LON
5 Sep — 12 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seoul to London are usually found in November or December, booked 20 days in advance, depart on a Monday or Saturday and return on a Monday

Cheap flight deals from Seoul to London

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 6 August 2026.

Wed 28/1014:25 -
2 stops25h 30m
Wed 25/1111:35 -
1 stop16h 30m
Deal found 2/8£498
Sat 15/820:50 -
1 stop26h 10m
Tue 25/811:35 -
1 stop24h 15m
Deal found 1/8£501
Tue 20/1014:25 -
2 stops24h 30m
Wed 28/1011:35 -
1 stop16h 30m
Deal found 4/8£504
Mon 10/812:00 -
1 stop35h 00m
Mon 17/818:00 -
1 stop17h 50m
Deal found 2/8£506
Sat 7/1114:25 -
1 stop24h 55m
Sun 15/1111:35 -
1 stop16h 30m
Deal found 4/8£507
Tue 10/1114:25 -
1 stop24h 55m
Mon 16/1111:35 -
1 stop16h 30m
Deal found 2/8£507
Fri 11/913:30 -
1 stop36h 35m
Sat 19/921:00 -
1 stop31h 25m
Deal found 5/8£507
Sat 10/1013:30 -
1 stop36h 35m
Tue 20/1021:00 -
1 stop31h 25m
Deal found 5/8£509
Thu 10/920:50 -
1 stop30h 20m
Wed 23/911:35 -
1 stop24h 15m
Deal found 1/8£509
Wed 28/1014:25 -
1 stop34h 30m
Wed 25/1120:25 -
1 stop31h 40m
Deal found 2/8£509
Wed 19/820:50 -
1 stop30h 20m
Wed 26/818:00 -
1 stop17h 50m
Deal found 4/8£510
Wed 2/914:25 -
1 stop24h 10m
Wed 9/920:25 -
1 stop32h 40m
Deal found 3/8£511

Find 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 6 August 2026.

Round-trip from

£498

One-way from

£166

Popular in

October

Cheapest in

November

Average price

£658

Good round-trip deal

£705 or less

Good one-way deal

£434 or less
Air China
  • Air China
  • 28/10-25/11
  • 3 total stops
  • 42h 00m total
  • Seoul to London
Search Deals
China Southern
  • China Southern
  • 10/10
  • 1 total stop
  • 17h 40m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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 6 August 2026.
Use the filters below to find and compare flights from Seoul to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Sun 16/8

20:50-15:00

1 stop26h 10m

London Gatwick

Tue 25/8

18:00-19:50

1 stop17h 50m

£501

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Thu 10/9

20:50-19:10

1 stop30h 20m

London Gatwick

Wed 23/9

11:35-19:50

1 stop24h 15m

£509

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Wed 19/8

20:50-19:10

1 stop30h 20m

London Gatwick

Wed 26/8

18:00-19:50

1 stop17h 50m

£510

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Thu 5/11

14:25-06:20

1 stop24h 55m

London Gatwick

Wed 18/11

11:35-13:05

1 stop16h 30m

£512

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Sun 8/11

14:25-06:20

1 stop24h 55m

London Gatwick

Fri 13/11

11:35-13:05

1 stop16h 30m

£512

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Sun 8/11

14:25-06:20

1 stop24h 55m

London Gatwick

Mon 16/11

11:35-13:05

1 stop16h 30m

£520

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Thu 5/11

14:25-06:20

1 stop24h 55m

London Gatwick

Mon 16/11

11:35-13:05

1 stop16h 30m

£520

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Sat 7/11

14:25-06:20

1 stop24h 55m

London Gatwick

Mon 16/11

11:35-13:05

1 stop16h 30m

£520

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 21/10

13:30-18:05

1 stop36h 35m

London Heathrow

Fri 20/11

06:50-13:05

2 stops21h 15m

£524

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Thu 3/9

12:00-06:40

1 stop26h 40m

London Gatwick

Thu 17/9

18:00-19:50

1 stop17h 50m

£524

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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

Currently, November is the cheapest month in which you can book a flight from Seoul to London (average of £512). Flying from Seoul to London in October is currently the most expensive (average of £883). 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 6 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seoul to London as you normally would.

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 6 August 2026.

The most flights from SEL to LON 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 (1 on average).

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

Airfare is below average for this route at the moment.
Seoul to London flights typically cost between £532 and £951 in October.
The cheapest return price found within the last 5 days was £498 on Air China (28 Oct–25 Nov).

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 30% 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.

Shenzhen (SZX) is the most affordable one-stop option, with an average return flight price of £346.

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 Munich (MUC) offer the fastest connection on this route, with an average stopover time of 1h 35m.

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

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 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 6 August 2026.
Check out reviews from past customers who have flown with Asiana Airlines,Virgin Atlantic, 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
8.1
Very Good
553 reviews
Check prices

Boarding

8.3

Crew

8.4

Overall

8.1

Food

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Asiana Airlines
8.1
Very Good
553 reviews
Asiana Airlines
8.1
Very Good
553 reviews
Check prices

Boarding

8.3

Crew

8.4

Overall

8.1

Food

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Virgin Atlantic
7.5
Good
694 reviews
Asiana Airlines
8.1
Very Good
553 reviews
Check prices

Boarding

8.3

Crew

8.4

Overall

8.1

Food

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
China Eastern
7.3
Good
230 reviews
Asiana Airlines
8.1
Very Good
553 reviews
Check prices

Boarding

8.3

Crew

8.4

Overall

8.1

Food

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Lufthansa
6.8
Okay
8,176 reviews
Asiana Airlines
8.1
Very Good
553 reviews
Check prices

Boarding

8.3

Crew

8.4

Overall

8.1

Food

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.

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?

    China Eastern, China Southern, and Air China can get you from Seoul to London in just under 26h 10m. Your travel time can differ by up to 10h 25m. The distance between Seoul and London is about 5515 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 £463. Other airlines that can offer you cheap pricing are Asiana Airlines, from £479, and Virgin Atlantic, from £513. Air China is priced at 24% 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 £119. Air China flights start at £131 while deals on Etihad Airways start at £232 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 (83%), Asiana Airlines (82%) and Korean Air (69%).

  • What are the cheapest flights from Seoul to London?

    Looking for the cheapest flight from Seoul to London? While on average our users pay £981, our data indicates the cheapest price to be £391. The most popular route (Incheon Intl - London Heathrow), is priced around £465.

  • 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, November is the cheapest month in which you can book a flight from Seoul to London (average of £512). Flying from Seoul to London in October is currently the most expensive (average of £883). 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
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Milton Keynes
Gatwick
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Wembley
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Ilford
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Southall
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Romford
Borehamwood

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 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£463Average£574FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£479Average£551FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£513Average£699FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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