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Cheap flights from London Heathrow Airport to Seoul from £297

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 18/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Seoul are usually found in November or February, booked 77 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 13 June 2025.

Round-trip from

£430

One-way from

£297

Popular in

July

Cheapest in

November

Average price

£591

Good round-trip deal

£932 or less

Good one-way deal

£558 or less
China Southern
  • China Southern
  • 1/9-13/10
  • 2 total stops
  • 68h 00m total
  • London to Seoul
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Hainan Airlines
  • Hainan Airlines
  • 18/6
  • 1 total stop
  • 39h 30m total
  • London to Seoul
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£72 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Seoul (SEL).
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Price to beat on a one-way flight from London Heathrow to Seoul (SEL).
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Find flight deals from Heathrow to Seoul

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 13 June 2025.

Mon 1/921:00LHR - GMP
1 stop31h 25mChina Southern
Mon 13/1013:30GMP - LHR
1 stop36h 35mChina Southern
Deal found 12/6£430
Tue 11/1117:40LHR - GMP
1 stop34h 25mAir China
Sun 30/1114:25GMP - LHR
1 stop34h 30mAir China
Deal found 12/6£449
Fri 31/1008:45LHR - ICN
1 stop17h 30mLufthansa
Wed 12/1113:05ICN - LHR
2 stops18h 50mLufthansa
Deal found 11/6£451
Mon 27/1021:30LHR - ICN
1 stop15h 55mChina Southern
Thu 6/1109:25ICN - LHR
1 stop17h 30mChina Southern
Deal found 12/6£454
Mon 27/1021:10LHR - ICN
1 stop31h 45mShenzhen Airlines
Sat 15/1114:55ICN - LHR
1 stop37h 15mShenzhen Airlines
Deal found 11/6£459
Thu 12/618:30LHR - ICN
1 stop15h 10mMultiple Airlines
Sun 15/617:25ICN - LHR
1 stop33h 50mMultiple Airlines
Deal found 11/6£468
Tue 21/1022:00LHR - ICN
1 stop30h 55mAir China
Tue 28/1017:50ICN - LHR
1 stop31h 05mAir China
Deal found 12/6£476
Wed 31/1215:35LHR - ICN
2 stops42h 25mScandinavian Airlines
Wed 28/123:45ICN - LHR
2 stops28h 05mScandinavian Airlines
Deal found 12/6£494
Mon 23/621:00LHR - GMP
1 stop31h 25mMultiple Airlines
Tue 1/714:25GMP - LHR
1 stop35h 20mMultiple Airlines
Deal found 12/6£525
Sun 24/810:15LHR - ICN
1 stop15h 15mLOT
Tue 9/911:20ICN - LHR
1 stop18h 40mLOT
Deal found 11/6£559
Sun 15/621:20LHR - ICN
1 stop36h 05mChina Eastern
Tue 24/612:55ICN - LHR
1 stop37h 45mChina Eastern
Deal found 12/6£562
Mon 16/621:20LHR - GMP
1 stop29h 40mChina Eastern
Thu 19/612:00GMP - LHR
1 stop38h 40mChina Eastern
Deal found 11/6£596

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 13 June 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Seoul that are best for you.

Fly from

Heathrow

Fly to

Seoul

Route

Depart

Return

Price

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 1/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Mon 13/10

13:30-18:05

1 stop36h 35m

£430

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 11/11

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Sun 30/11

14:25-15:55

1 stop34h 30m

£449

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 31/10

08:45-11:15

1 stop17h 30m

Incheon Intl

Wed 12/11

13:05-22:55

2 stops18h 50m

£451

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 27/10

21:30-22:25

1 stop15h 55m

Incheon Intl

Thu 6/11

09:25-17:55

1 stop17h 30m

£454

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 26/9

22:05-13:40

1 stop31h 35m

Incheon Intl

Fri 10/10

16:40-19:50

1 stop35h 10m

£456

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 21/10

22:00-12:55

1 stop30h 55m

Incheon Intl

Tue 28/10

17:50-15:55

1 stop31h 05m

£476

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 6/9

22:10-13:55

1 stop31h 45m

Incheon Intl

Sun 12/10

00:10-16:35

1 stop24h 25m

£483

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 3/9

06:30-06:25

1 stop15h 55m

Incheon Intl

Mon 15/9

11:20-09:20

1 stop30h 00m

£516

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 9/11

13:55-19:00

2 stops20h 05m

Incheon Intl

Wed 26/11

23:45-17:40

1 stop26h 55m

£521

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 23/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 1/7

14:25-17:45

1 stop35h 20m

£525

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 25 results
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2
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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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Seoul. Price data was last updated on 9 June 2025.

The best time to book flights from London Heathrow Airport to Seoul is 77 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.

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

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of £656). Flying from London Heathrow Airport to Seoul in July is currently the most expensive (average of £1,140). 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 13 June 2025.

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 32% versus a flight in the afternoon.

What is the cheapest day to fly from London Heathrow Airport to Seoul?

Use this chart to determine the cheapest time to fly return from Heathrow to Seoul. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Seoul flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 13 June 2025.

The most flights from LHR 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).

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 13 June 2025.
To help decide which airline to fly from London to Seoul, see what other customers have to say about Hainan Airlines, LOT and Austrian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hainan Airlines
8.1
Very Good
39 reviews
Check prices

Overall

8.1

Crew

8.9

Entertainment

7.7

Comfort

8.1

Food

8.5

Boarding

8.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Hainan Airlines
8.1
Very Good
39 reviews
Hainan Airlines
8.1
Very Good
39 reviews
Check prices

Overall

8.1

Crew

8.9

Entertainment

7.7

Comfort

8.1

Food

8.5

Boarding

8.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
LOT
7.6
Good
1,079 reviews
Hainan Airlines
8.1
Very Good
39 reviews
Check prices

Overall

8.1

Crew

8.9

Entertainment

7.7

Comfort

8.1

Food

8.5

Boarding

8.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Austrian Airlines
7.6
Good
802 reviews
Hainan Airlines
8.1
Very Good
39 reviews
Check prices

Overall

8.1

Crew

8.9

Entertainment

7.7

Comfort

8.1

Food

8.5

Boarding

8.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
China Southern
7.5
Good
99 reviews
Hainan Airlines
8.1
Very Good
39 reviews
Check prices

Overall

8.1

Crew

8.9

Entertainment

7.7

Comfort

8.1

Food

8.5

Boarding

8.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.
Scandinavian Airlines
7.3
Good
1,387 reviews
Hainan Airlines
8.1
Very Good
39 reviews
Check prices

Overall

8.1

Crew

8.9

Entertainment

7.7

Comfort

8.1

Food

8.5

Boarding

8.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Mar 2025

CAN - PEK

Excellent services. The staff were amazing. Although if there was something that I could suggest to improve the services I’d say that snacks and drinks should be offered in between meals. Other than that then it was a lovely flight.

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.

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

    China Southern, at £430, was found to be the cheapest airline from London Heathrow Airport to Seoul.Alternate airlines flying return to your destination include Air China and Lufthansa. China Southern is priced at 32% 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 Hainan Airlines, which is currently one of the cheapest options available, starting at £297. China Southern flights start at £302 while deals on Shenzhen Airlines start at £314 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: Asiana Airlines (80%), Korean Air (80%), Virgin Atlantic( 80%).

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

    On average you can expect to pay £2,359 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is £547 while the most popular route, (London Heathrow - Incheon Intl) is currently priced at £387.

  • 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 Summer Palace, Forbidden City, or The Antiquarium of the Palace Museum. Those on a stopover in Beijing interested in visiting Summer Palace, Forbidden City, or The Antiquarium of the Palace Museum can do so by traveling 17.3 mi, 15.1 mi, and 14.9 mi, respectively from Beijing Capital.

  • 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of £656). Flying from London Heathrow Airport to Seoul in July is currently the most expensive (average of £1,140). 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 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 13 June 2025.
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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£333Average£408FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£339Average£432FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£359Average£570FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£417Average£456FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
LufthansaCheapest£445Average£640FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
LOTCheapest£517Average£718FlexibilityNo cancel feeOn-time81%
Search LOT flights
Etihad AirwaysCheapest£517Average£650FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
FinnairCheapest£537Average£704FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£542Average£740FlexibilityNo cancel feeOn-time77%
Search Air France flights
Turkish AirlinesCheapest£543Average£617FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines 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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