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Cheap flights from London Heathrow Airport to Seoul from £346

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
10 Jul — 17 Jul1
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 43 days in advance, depart on a Wednesday or Monday 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 10 June 2026.

Mon 9/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Thu 19/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 5/6£555
Thu 17/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Thu 19/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 8/6£558
Wed 11/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 25/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/6£565
Fri 11/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Sat 10/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 6/6£568
Sun 20/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Sat 10/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 5/6£569
Fri 6/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 11/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/6£571
Fri 18/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Sat 17/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 8/6£572
Thu 24/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Mon 12/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 8/6£573
Thu 12/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Thu 19/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 8/6£573
Tue 10/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 25/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/6£577
Sun 13/1221:05
LHR
-
ICN
2 stops36h 55m
Scandinavian Airlines
Fri 1/123:45
ICN
-
LHR
2 stops42h 50m
Scandinavian Airlines
Deal found 7/6£609
Thu 29/1021:35
LHR
-
ICN
1 stop30h 20m
Air China
Sun 15/1114:50
ICN
-
LHR
1 stop36h 00m
Air China
Deal found 7/6£612

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 10 June 2026.

Round-trip from

£555

One-way from

£346

Popular in

December

Cheapest in

January

Average price

£633

Good round-trip deal

£811 or less

Good one-way deal

£485 or less
China Southern
  • China Southern
  • 9/11-19/11
  • 2 total stops
  • 67h 20m total
  • London to Seoul
Search Deals
Air China
  • Air China
  • 3/9
  • 1 total stop
  • 32h 40m total
  • London to Seoul
Search Deals
High demand for flights, 12% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 10 June 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

Thu 22/10

06:55-09:55

1 stop19h 00m

Incheon Intl

Fri 6/11

12:55-08:05

2 stops28h 10m

£736

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 22/6

16:35-13:20

Nonstop12h 45m

Incheon Intl

Sat 27/6

07:50-14:20

Nonstop14h 30m

£800
Fastest return journey

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 25/6

13:25-10:05

Nonstop12h 40m

Incheon Intl

Sat 11/7

12:25-18:50

Nonstop14h 25m

£801

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 8/7

18:40-18:35

1 stop15h 55m

Incheon Intl

Tue 11/8

23:35-09:20

1 stop17h 45m

£827

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 1/8

06:55-09:55

1 stop19h 00m

Incheon Intl

Thu 17/12

12:55-20:50

1 stop16h 55m

£837

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 9/8

08:25-07:10

2 stops38h 45m

Incheon Intl

Sun 23/8

11:00-06:30

2 stops27h 30m

£864

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 22/9

09:55-18:35

2 stops24h 40m

Incheon Intl

Fri 9/10

23:35-14:35

2 stops23h 00m

£881

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 1/7

15:35-18:35

2 stops19h 00m

Incheon Intl

Sat 11/7

23:35-17:40

1 stop26h 05m

£898

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 13/7

15:35-18:35

2 stops19h 00m

Incheon Intl

Mon 24/8

23:35-14:35

2 stops23h 00m

£899

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 25/8

10:35-18:35

2 stops24h 00m

Incheon Intl

Mon 31/8

23:35-16:25

2 stops24h 50m

£907

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 44 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 December is currently the most expensive (average of £1,688). 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 10 June 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 26% versus a flight in the evening.

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 10 June 2026.

The most flights from LHR to SEL 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 (3 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 25% 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.

Chengdu (TFU) is the most affordable one-stop option, with an average return flight price of £449.

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 41m.

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 Frankfurt am Main (FRA) 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 15 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 10 June 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
1,218 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
1,218 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
540 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
689 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
154 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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
8,052 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

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 Lufthansa, Asiana Airlines, and Virgin Atlantic fly from London Heathrow Airport to Seoul in about 12h 40m. The time it takes to get you to your destination can typically vary by up to 6h 20m. 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: Virgin Atlantic (91%), Asiana Airlines (88%), Korean Air( 61%).

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

    On average you can expect to pay £1,203 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is £467 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 December is currently the most expensive (average of £1,688). 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 10 June 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 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£249Average£454FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£361Average£525FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£379Average£528FlexibilityNo cancel feeOn-time67%
Search Air China flights
Cathay PacificCheapest£408Average£922FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
LufthansaCheapest£430Average£587FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£458Average£684FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Qatar AirwaysCheapest£487Average£894FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Air FranceCheapest£492Average£681FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air IndiaCheapest£500Average£590FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£504Average£646FlexibilityNo cancel feeOn-time75%
Search Etihad Airways 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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