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Cheap flights from Seoul to London from £158

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 27/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LON
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Seoul to London are usually found in December or February, booked 63 days in advance, depart on a Thursday or Monday 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 24 October 2025.

Sat 15/1114:25GMP - LHR
1 stop36h 25mMultiple Airlines
Fri 21/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 22/10£409
Fri 5/1214:25GMP - LGW
2 stops35h 00mMultiple Airlines
Fri 12/1221:45LGW - GMP
2 stops30h 20mMultiple Airlines
Deal found 23/10£410
Fri 14/1114:25GMP - LHR
1 stop36h 25mMultiple Airlines
Fri 21/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 21/10£410
Mon 17/1114:25GMP - LGW
2 stops32h 55mMultiple Airlines
Sat 22/1119:35LGW - GMP
3 stops32h 30mMultiple Airlines
Deal found 23/10£411
Tue 4/1114:25GMP - LHR
1 stop34h 30mAir China
Fri 28/1117:40LHR - GMP
1 stop34h 25mAir China
Deal found 23/10£411
Sun 16/1114:25GMP - LHR
1 stop34h 30mAir China
Mon 17/1120:25LHR - GMP
1 stop31h 40mAir China
Deal found 22/10£412
Tue 18/1114:25GMP - LHR
1 stop34h 30mAir China
Wed 26/1120:25LHR - GMP
1 stop31h 40mAir China
Deal found 22/10£419
Sun 9/1114:25GMP - LHR
1 stop36h 25mAir China
Thu 13/1117:40LHR - GMP
1 stop34h 25mAir China
Deal found 24/10£420
Tue 18/1114:25GMP - LGW
2 stops25h 30mAir China
Wed 26/1111:05LGW - GMP
2 stops41h 00mAir China
Deal found 22/10£422
Sun 23/1114:25GMP - LHR
1 stop36h 25mAir China
Sun 7/1220:25LHR - GMP
1 stop31h 40mAir China
Deal found 22/10£423
Wed 5/1114:25GMP - LHR
1 stop34h 30mAir China
Sun 9/1120:25LHR - GMP
1 stop31h 40mAir China
Deal found 22/10£425
Mon 17/1114:25GMP - LHR
1 stop34h 30mMultiple Airlines
Wed 26/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 23/10£430

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 24 October 2025.

Round-trip from

£409

One-way from

£158

Popular in

October

Cheapest in

December

Average price

£852

Good round-trip deal

£506 or less

Good one-way deal

£284 or less
China Southern
  • China Southern
  • 15/11-21/11
  • 2 total stops
  • 66h 20m total
  • Seoul to London
Search Deals
China Eastern
  • China Eastern
  • 27/1
  • 1 total stop
  • 34h 05m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£64 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 October 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 24 October 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

Sat 15/11

14:25-17:50

1 stop36h 25m

London Heathrow

Fri 21/11

21:30-12:25

1 stop29h 55m

£409

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 21/11

14:25-17:50

1 stop36h 25m

London Heathrow

Tue 2/12

20:25-13:05

1 stop31h 40m

£410

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 19/11

14:25-17:50

1 stop36h 25m

London Heathrow

Wed 26/11

21:30-12:25

1 stop29h 55m

£420

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Tue 18/11

14:25-06:55

2 stops25h 30m

London Gatwick

Wed 26/11

11:05-13:05

2 stops41h 00m

£422

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Thu 20/11

14:25-06:55

2 stops25h 30m

London Gatwick

Wed 26/11

11:05-13:05

2 stops41h 00m

£422

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 23/11

14:25-17:50

1 stop36h 25m

London Heathrow

Sun 7/12

20:25-13:05

1 stop31h 40m

£423

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 19/11

14:25-17:50

1 stop36h 25m

London Heathrow

Fri 21/11

21:30-12:25

1 stop29h 55m

£433

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Thu 27/11

12:00-06:30

1 stop27h 30m

London Gatwick

Tue 2/12

10:30-19:50

1 stop24h 20m

£439

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 23/12

20:50-17:30

1 stop29h 40m

London Heathrow

Thu 25/12

21:00-11:00

1 stop29h 00m

£451

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Wed 19/11

14:25-16:20

3 stops34h 55m

London Gatwick

Wed 26/11

21:05-13:05

2 stops31h 00m

£454

Flights are sorted by cheapest return flights first.

Deals found on 23/10

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 17 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 £109). Flying from Seoul to London in August is currently the most expensive (average of £553). 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 24 October 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 28% on airfare.

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 31% 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 £372.

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 24 October 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

Overall

8.2

Boarding

8.4

Entertainment

7.7

Comfort

8.1

Food

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
486 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.4

Entertainment

7.7

Comfort

8.1

Food

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
7.4
Good
116 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.4

Entertainment

7.7

Comfort

8.1

Food

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
173 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.4

Entertainment

7.7

Comfort

8.1

Food

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
7.2
Good
117 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.4

Entertainment

7.7

Comfort

8.1

Food

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
7,514 reviews
Asiana Airlines
8.2
Very Good
486 reviews
Check prices

Crew

8.6

Overall

8.2

Boarding

8.4

Entertainment

7.7

Comfort

8.1

Food

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 Malaysia Airlines can get you from Seoul to London in just under 24h 15m. Your travel time can differ by up to 3h 15m. 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 £356. Other airlines that can offer you cheap pricing are Asiana Airlines, from £506, and Korean Air, from £727. China Eastern is priced at 39% 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 £158. Air China flights start at £162 while deals on Shenzhen Airlines start at £193 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 (51%), Korean Air (46%) and Asiana Airlines (30%).

  • What are the cheapest flights from Seoul to London?

    Looking for the cheapest flight from Seoul to London? While on average our users pay £912, our data indicates the cheapest price to be £282. The most popular route (Incheon Intl - London Heathrow), is priced around £393.

  • 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 £109). Flying from Seoul to London in August is currently the most expensive (average of £553). 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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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 24 October 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£356Average£692FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£506Average£745FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£727Average£826FlexibilityNo 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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