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Cheap flights from London Heathrow Airport to Seoul from £293

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
8 Aug — 15 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Seoul are usually found in January or November, booked 76 days in advance, depart on a Monday or Wednesday and return on a Friday

Cheap flight deals from Heathrow to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Seoul
Explore the most affordable flight options available from Heathrow to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 July 2026.

Sat 21/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Thu 26/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 4/7£583
Tue 25/822:40
LHR
-
GMP
1 stop30h 25m
Air China
Wed 9/914:25
GMP
-
LHR
1 stop35h 15m
Air China
Deal found 8/7£598
Tue 1/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Tue 8/913:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 8/7£603
Sun 4/1021:00
LHR
-
GMP
1 stop31h 25m
China Southern
Sun 11/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 8/7£615
Wed 2/1221:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 16/1213:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/7£616
Fri 30/1021:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 25/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 8/7£617
Tue 1/1221:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 16/1213:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/7£622
Wed 11/1121:30
LHR
-
GMP
1 stop29h 55m
Multiple Airlines
Tue 24/1114:25
GMP
-
LHR
1 stop34h 30m
Multiple Airlines
Deal found 5/7£626
Fri 20/1121:30
LHR
-
GMP
1 stop29h 55m
Multiple Airlines
Tue 1/1214:25
GMP
-
LHR
1 stop34h 30m
Multiple Airlines
Deal found 6/7£628
Mon 12/1021:00
LHR
-
GMP
1 stop31h 25m
China Southern
Mon 19/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 5/7£628
Sat 19/922:10
LHR
-
ICN
1 stop31h 45m
China Southern
Fri 2/1009:40
ICN
-
LHR
1 stop17h 40m
China Southern
Deal found 6/7£641
Mon 9/1121:00
LHR
-
ICN
2 stops30h 15m
Multiple Airlines
Mon 30/1113:10
ICN
-
LHR
1 stop35h 45m
Multiple Airlines
Deal found 6/7£642

Find flight deals from Heathrow to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 9 July 2026.

Round-trip from

£583

One-way from

£293

Popular in

December

Cheapest in

January

Average price

£766

Good round-trip deal

£724 or less

Good one-way deal

£514 or less
China Southern
  • China Southern
  • 21/11-26/11
  • 2 total stops
  • 67h 20m total
  • London to Seoul
Search Deals
Air China
  • Air China
  • 18/8
  • 1 total stop
  • 15h 20m total
  • London to Seoul
Search Deals
High demand for flights, 10% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Seoul (SEL).
Search Deals
Price to beat on a one-way flight from London Heathrow to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 9 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 29/12

21:05-19:00

2 stops36h 55m

Incheon Intl

Tue 19/1

23:45-14:35

2 stops23h 50m

£664

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 4/10

14:45-22:15

1 stop23h 30m

Incheon Intl

Wed 14/10

18:20-07:00

1 stop20h 40m

£686

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 29/11

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Thu 3/12

14:25-17:50

1 stop36h 25m

£715

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 8/9

07:00-07:40

2 stops16h 40m

Incheon Intl

Wed 23/9

09:30-17:50

1 stop16h 20m

£715

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 19/9

20:50-07:10

2 stops50h 20m

Incheon Intl

Sat 3/10

11:00-19:10

2 stops40h 10m

£743

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 7/12

16:15-12:25

1 stop35h 10m

Incheon Intl

Wed 6/1

23:00-09:10

1 stop19h 10m

£747

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 16/9

22:40-08:35

1 stop25h 55m

Incheon Intl

Sun 4/10

23:20-12:10

1 stop20h 50m

£803

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 5/9

08:25-07:10

2 stops38h 45m

Incheon Intl

Sun 20/9

11:00-06:30

2 stops27h 30m

£809
Fastest return journey

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 29/11

16:35-14:10

Nonstop12h 35m

Incheon Intl

Tue 1/12

08:40-14:20

Nonstop14h 40m

£858

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 13/9

16:35-13:20

Nonstop12h 45m

Incheon Intl

Tue 6/10

07:50-14:20

Nonstop14h 30m

£859

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Seoul

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

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of £306). Flying from London Heathrow Airport to Seoul in September is currently the most expensive (average of £1,219). 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 LHR to SEL?

Find hourly flight availability from Heathrow 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 9 July 2026.

When flying from London Heathrow Airport to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 27% versus a flight in the morning.

Weekly flight availability from London Heathrow Airport to Seoul

Explore weekly flight availability from Heathrow 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 9 July 2026.

The most flights from LHR to SEL are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

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

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

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

Beijing (PEK) – chosen by Cheapflights users on 26% of one-stop itineraries from London Heathrow Airport to Seoul on Cheapflights.

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

Average return fare for one-stop flights from London Heathrow Airport to Seoul, 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 £455.

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

Shortest average travel time for one-stop one-way flights from London Heathrow Airport 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 43m.

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

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

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 51m.

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

The best time to book flights from London Heathrow Airport to Seoul is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 9 July 2026.
Get a feel of what it's like to fly with Korean Air,Asiana Airlines, andVirgin Atlantic from London Heathrow Airport to Seoul by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

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.
Korean Air
8.4
Very Good
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

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.
Asiana Airlines
8.1
Very Good
551 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

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.
Virgin Atlantic
7.5
Good
692 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

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.
Air China
7.3
Good
158 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

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.
Lufthansa
6.8
Okay
8,123 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Crew

8.7

Comfort

8.3

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 Heathrow 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 Heathrow Airport to Seoul?

    Airlines like Scandinavian Airlines, Etihad Airways, and Air China fly from London Heathrow Airport to Seoul in about 23h 30m. The time it takes to get you to your destination can typically vary by up to 13h 25m. The distance between London Heathrow Airport and Seoul is about 5503 mi. This flight may include one or multiple stops.

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

    China Eastern, at £249, was found to be the cheapest airline from London Heathrow Airport to Seoul.Alternate airlines flying return to your destination include China Southern and Air China. China Eastern is priced at 61% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with China Eastern, which is currently one of the cheapest options available, starting at £241. China Southern flights start at £252 while deals on Air China start at £277 one-way.

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

    Before booking your flight to Seoul from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Korean Air (90%), Virgin Atlantic (90%), Asiana Airlines( 88%).

  • What are the cheapest flights from London Heathrow Airport to Seoul?

    On average you can expect to pay £1,605 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is £263 while the most popular route, (London Heathrow - Incheon Intl) is currently priced at £442.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Seoul?

    Flights departing from London Heathrow Airport and landing in Seoul stopover in Beijing most frequently.

  • What are some popular things to do or see while on a stopover in Beijing?

    If you're on a stopover in Beijing and looking for things to do, consider visiting Forbidden City, The Antiquarium of the Palace Museum, or Zhengyangmen. Those on a stopover in Beijing interested in visiting Forbidden City, The Antiquarium of the Palace Museum, or Zhengyangmen can do so by traveling 28.1 mi, 28.2 mi, and 27.0 mi, respectively from Beijing Daxing Intl.

  • Where are the least popular stopover locations for London Heathrow Airport to Seoul flights?

    London Heathrow Airport to Seoul flights have a stopover in Beijing least often.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Seoul?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of £306). Flying from London Heathrow Airport to Seoul in September is currently the most expensive (average of £1,219). 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

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

Fly from Heathrow to Seoul on these airlines

Choose from the following airlines for your flight from Heathrow to Seoul. Flights are based on user searches made on Cheapflights and were last updated on 9 July 2026.
Asiana Airlines flights from London Heathrow to Seoul
Korean Air flights from London Heathrow to Seoul
China Southern flights from London Heathrow to Seoul

Top 10 airlines flying from Heathrow to Seoul

Discover the top 10 airlines that operate flights from Heathrow 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 9 July 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£249Average£454FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£366Average£521FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£380Average£535FlexibilityNo cancel feeOn-time67%
Search Air China flights
Cathay PacificCheapest£408Average£923FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
KLMCheapest£428Average£809FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£431Average£588FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£459Average£697FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Qatar AirwaysCheapest£488Average£895FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Etihad AirwaysCheapest£491Average£626FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£492Average£672FlexibilityNo cancel feeOn-time77%
Search Air France 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 Heathrow to Seoul?

When you search for this flight from Heathrow to Seoul, 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 Heathrow to Seoul?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Seoul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Heathrow to Seoul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Heathrow to Seoul flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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