Cheap flights from London to Seoul from £227

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SEL
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Seoul are usually found in November or May, booked 20 days in advance, depart on a Tuesday or Thursday and return on a Thursday

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 27 November 2025.

Round-trip from

£357

One-way from

£227

Popular in

July

Cheapest in

November

Average price

£433

Good round-trip deal

£786 or less

Good one-way deal

£477 or less
Air China
  • Air China
  • 3/5-10/5
  • 2 total stops
  • 40h 40m total
  • London to Seoul
China Eastern
  • China Eastern
  • 2/12
  • 1 total stop
  • 24h 20m total
  • London to Seoul
Highest demand for flights based on searches. 17% potential increase in price (£98 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in November 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

Enter your travel dates to find the best prices.

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 27 November 2025.

Sun 30/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Fri 5/1214:25GMP - LHR
1 stop36h 25mMultiple Airlines
Deal found 25/11£355
Wed 31/1210:30LGW - ICN
2 stops19h 25mChina Eastern
Tue 20/116:20ICN - LGW
1 stop23h 10mChina Eastern
Deal found 26/11£369
Sun 30/1121:00LHR - GMP
1 stop29h 00mChina Eastern
Wed 3/1220:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 25/11£369
Mon 1/1221:30LHR - ICN
1 stop15h 45mMultiple Airlines
Sat 6/1208:55ICN - LHR
1 stop17h 35mMultiple Airlines
Deal found 25/11£369
Sun 30/1110:30LGW - ICN
1 stop21h 55mChina Eastern
Thu 18/1216:10ICN - LGW
1 stop30h 50mChina Eastern
Deal found 25/11£369
Sun 30/1121:00LHR - ICN
1 stop14h 45mChina Eastern
Fri 5/1208:55ICN - LHR
1 stop17h 35mChina Eastern
Deal found 25/11£370
Sat 29/1121:35LHR - ICN
1 stop30h 20mAir China
Wed 3/1211:10ICN - LHR
1 stop15h 40mAir China
Deal found 27/11£371
Wed 31/1210:30LGW - ICN
2 stops19h 25mChina Eastern
Sun 18/116:20ICN - LGW
1 stop23h 10mChina Eastern
Deal found 26/11£371
Tue 2/1222:10LHR - ICN
1 stop29h 45mAir China
Fri 5/1214:50ICN - LHR
1 stop36h 00mAir China
Deal found 27/11£372
Mon 1/1221:00LHR - GMP
1 stop29h 00mChina Eastern
Wed 3/1220:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 27/11£372
Thu 27/1121:35LHR - ICN
1 stop30h 20mAir China
Mon 1/1214:50ICN - LHR
1 stop36h 00mAir China
Deal found 25/11£372
Tue 2/1210:30LGW - ICN
2 stops19h 25mChina Eastern
Sun 14/1211:55ICN - LGW
2 stops27h 35mChina Eastern
Deal found 25/11£372

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 27 November 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

LGW - GMP

LGWGMP

London Gatwick

Sun 3/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 10/5

14:25-06:35

1 stop24h 10m

£357

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Mon 11/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 24/5

14:25-06:35

1 stop24h 10m

£358

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Thu 7/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 17/5

14:25-06:35

1 stop24h 10m

£358

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Mon 11/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Mon 25/5

14:25-06:35

1 stop24h 10m

£358

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Sun 10/5

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 24/5

14:25-06:35

1 stop24h 10m

£364

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 5/3

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 18/3

13:30-17:55

1 stop37h 25m

£386

LondonIncheon

STN - ICN

STNICN

London Stansted

Fri 2/1

08:20-21:50

3 stops28h 30m

Incheon Intl

Mon 19/1

14:50-16:45

2 stops34h 55m

£416

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Fri 24/4

12:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Sun 10/5

14:25-06:35

1 stop24h 10m

£454

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 27/2

21:10-15:45

1 stop33h 35m

Incheon Intl

Sun 15/3

16:45-19:10

1 stop35h 25m

£458

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 7/1

21:10-13:55

1 stop31h 45m

Incheon Intl

Sun 25/1

16:45-19:10

1 stop35h 25m

£459

Flights are sorted by cheapest return flights first.

Deals found on 27/11

Showing 1-10 of 60 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 21 November 2025.

To ensure you get the cheapest price possible for a flight from London to Seoul, you should look to book at least 20 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 £275). Flying from London to Seoul in July is currently the most expensive (average of £636). 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 27 November 2025.

One of the essential ways to save on airfare from London to Seoul is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 21% 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. Monday 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 27 November 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).

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

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

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

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

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

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

Haikou (HAK) is the most affordable one-stop option, with an average return flight price of £436.

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

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

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for one-stop routes: 14h 54m.

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

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

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average stopover time of 1h 50m.

How often are flights from London to Seoul delayed?

About 0% of weekly flights between London and Seoul have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for London to Seoul flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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 27 November 2025.
See what other customers who have flown with Korean Air, Asiana Airlines, andChina Southern from London to Seoul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.
  • How long is the flight from London to Seoul?

    Departing from London to Seoul will take you 16h 30m. There are 5515 mi between London and Seoul. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    China Eastern, at £305, was found to be the cheapest airline from London to Seoul.Alternate airlines flying return to your destination include Turkish Airlines and China Southern. Users have found that China Eastern is 49% 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 £253 on China Eastern. Other airlines that offer cheap prices include Air China from £254 and China Southern from £285 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: Korean Air (97%), Virgin Atlantic (97%), Asiana Airlines( 87%).

  • What are the cheapest flights from London to Seoul?

    While on average a flight from London to Seoul is generally £1,478, our data shows the cheapest flight currently is £403. When looking at the most popular route, (London Heathrow - Incheon Intl), you can expect to pay £335 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?

    Forbidden City, Summer Palace, 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. Forbidden City, Summer Palace, and The Antiquarium of the Palace Museum can be visited by traveling about 15.1 mi, 17.3 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 People's Square, Shanghai Dianchun Hall, and Shanghai Grand Theatre. Travellers on a stopover in Shanghai can visit People's Square, Shanghai Dianchun Hall, and Shanghai Grand Theatre, by travelling 20.3 mi, 19.4 mi, and 20.6 mi, respectively after landing at Shanghai Pu Dong.

  • What are points of interest worth seeing during a stopover in Frankfurt am Main?

    If you're on a stopover in Frankfurt am Main and looking for things to do, consider visiting Opernturm, Römerberg, or Jahrhunderthalle. Opernturm, Römerberg, and Jahrhunderthalle can be visited by travelling about 7.3 mi, 7.4 mi, and 4.4 mi respectively from Frankfurt am Main. Those on a stopover in Frankfurt am Main in need of a car hire can book one at Frankfurt am Main for about £30.

  • 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 £275). Flying from London to Seoul in July is currently the most expensive (average of £636). 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 27 November 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£305Average£456FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Turkish AirlinesCheapest£332Average£677FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
China SouthernCheapest£335Average£448FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£372Average£497FlexibilityNo cancel feeOn-time67%
Search Air China flights
LufthansaCheapest£432Average£622FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£463Average£603FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Etihad AirwaysCheapest£546Average£684FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
LOTCheapest£548Average£749FlexibilityNo cancel feeOn-time81%
Search LOT flights
Air FranceCheapest£557Average£708FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£567Average£761FlexibilityNo cancel feeOn-time76%
Search Finnair 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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