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Cheap flights from London Heathrow Airport to Seoul from £256

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
1 Apr — 8 Apr1
1 adult

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

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 27 March 2025.

Round-trip from

£409

One-way from

£256

Popular in

July

Cheapest in

November

Average price

£648

Good round-trip deal

£844 or less

Good one-way deal

£570 or less
China Southern
  • China Southern
  • 13/6-23/6
  • 2 total stops
  • 68h 00m total
  • London to Seoul
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China Southern
  • China Southern
  • 12/5
  • 1 total stop
  • 17h 10m total
  • London to Seoul
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Highest demand for flights based on searches. 13% potential increase in price (£85 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
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Average for round-trip flights in March 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 27 March 2025.

Fri 13/621:00LHR - GMP
1 stop31h 25mChina Southern
Mon 23/613:30GMP - LHR
1 stop36h 35mChina Southern
Deal found 26/3£409
Mon 19/522:10LHR - ICN
1 stop31h 45mChina Southern
Wed 4/609:25ICN - LHR
1 stop16h 40mChina Southern
Deal found 26/3£420
Fri 2/521:20LHR - ICN
1 stop32h 10mChina Eastern
Wed 14/514:30ICN - LHR
1 stop36h 10mChina Eastern
Deal found 26/3£421
Fri 9/522:05LHR - ICN
1 stop33h 35mShenzhen Airlines
Tue 20/514:40ICN - LHR
1 stop37h 20mShenzhen Airlines
Deal found 26/3£423
Sat 3/522:00LHR - ICN
1 stop30h 55mAir China
Fri 16/510:50ICN - LHR
1 stop17h 40mAir China
Deal found 26/3£430
Wed 5/1111:30LHR - ICN
1 stop14h 20mLufthansa
Thu 20/1112:55ICN - LHR
1 stop16h 50mLufthansa
Deal found 26/3£431
Thu 1/521:20LHR - GMP
1 stop29h 40mChina Eastern
Wed 14/520:50GMP - LHR
1 stop29h 50mChina Eastern
Deal found 26/3£452
Thu 22/522:10LHR - ICN
1 stop33h 15mMultiple Airlines
Sun 1/610:05ICN - LHR
1 stop39h 00mMultiple Airlines
Deal found 26/3£461
Sat 26/421:00LHR - GMP
1 stop31h 25mMultiple Airlines
Sun 11/520:50GMP - LHR
1 stop29h 50mMultiple Airlines
Deal found 26/3£483
Thu 8/520:25LHR - GMP
1 stop32h 40mAir China
Wed 14/514:25GMP - LHR
1 stop35h 20mAir China
Deal found 27/3£488
Fri 16/519:15LHR - ICN
2 stops53h 10mSWISS
Wed 28/510:05ICN - LHR
1 stop19h 40mSWISS
Deal found 26/3£497

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 27 March 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

Fri 13/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Mon 23/6

13:30-18:05

1 stop36h 35m

£409

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 19/5

22:10-13:55

1 stop31h 45m

Incheon Intl

Wed 4/6

09:25-18:05

1 stop16h 40m

£420

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 2/5

21:20-13:30

1 stop32h 10m

Incheon Intl

Wed 14/5

14:30-18:40

1 stop36h 10m

£421

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 9/5

22:05-15:40

1 stop33h 35m

Incheon Intl

Tue 20/5

14:40-20:00

1 stop37h 20m

£423

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 3/5

22:00-12:55

1 stop30h 55m

Incheon Intl

Fri 16/5

10:50-20:30

1 stop17h 40m

£430

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 1/5

21:20-11:00

1 stop29h 40m

Seoul Gimpo Intl

Wed 14/5

20:50-18:40

1 stop29h 50m

£452

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 22/5

22:10-15:25

1 stop33h 15m

Incheon Intl

Sun 1/6

10:05-17:05

1 stop39h 00m

£461

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 20/5

09:30-09:55

2 stops16h 25m

Incheon Intl

Wed 10/12

13:30-22:55

1 stop18h 25m

£477

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 26/4

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sun 11/5

20:50-18:40

1 stop29h 50m

£483

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 8/5

20:25-13:05

1 stop32h 40m

Seoul Gimpo Intl

Wed 14/5

14:25-17:45

1 stop35h 20m

£488

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 23 results
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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 21 March 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 £676). Flying from London Heathrow Airport to Seoul in July is currently the most expensive (average of £1,188). 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 27 March 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 in the morning, which can drop the price by up to 30% 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 Wednesday 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.

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 27 March 2025.
To help decide which airline to fly from London to Seoul, see what other customers have to say about Hainan Airlines, SWISS and China Southern. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hainan Airlines
7.8
Good
32 reviews
Check prices

Boarding

8.4

Food

8.3

Comfort

8.0

Overall

7.8

Crew

8.8

Entertainment

7.5

Reviews

1 / 1
10.0
Excellent

Wei,Sept 2024

PEK - SEA

Wi Fi on board is good, but do not know how to use it even not tried due to fee.
Hainan Airlines
7.8
Good
32 reviews
Hainan Airlines
7.8
Good
32 reviews
Check prices

Boarding

8.4

Food

8.3

Comfort

8.0

Overall

7.8

Crew

8.8

Entertainment

7.5

Reviews

1 / 1
10.0
Excellent

Wei,Sept 2024

PEK - SEA

Wi Fi on board is good, but do not know how to use it even not tried due to fee.
SWISS
7.5
Good
1,570 reviews
Hainan Airlines
7.8
Good
32 reviews
Check prices

Boarding

8.4

Food

8.3

Comfort

8.0

Overall

7.8

Crew

8.8

Entertainment

7.5

Reviews

1 / 1
10.0
Excellent

Wei,Sept 2024

PEK - SEA

Wi Fi on board is good, but do not know how to use it even not tried due to fee.
China Southern
7.4
Good
91 reviews
Hainan Airlines
7.8
Good
32 reviews
Check prices

Boarding

8.4

Food

8.3

Comfort

8.0

Overall

7.8

Crew

8.8

Entertainment

7.5

Reviews

1 / 1
10.0
Excellent

Wei,Sept 2024

PEK - SEA

Wi Fi on board is good, but do not know how to use it even not tried due to fee.
China Eastern
7.1
Good
136 reviews
Hainan Airlines
7.8
Good
32 reviews
Check prices

Boarding

8.4

Food

8.3

Comfort

8.0

Overall

7.8

Crew

8.8

Entertainment

7.5

Reviews

1 / 1
10.0
Excellent

Wei,Sept 2024

PEK - SEA

Wi Fi on board is good, but do not know how to use it even not tried due to fee.

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 £409, was found to be the cheapest airline from London Heathrow Airport to Seoul.Alternate airlines flying return to your destination include China Eastern and Shenzhen Airlines. China Southern is priced at 40% 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 Southern, which is currently one of the cheapest options available, starting at £256. Shenzhen Airlines flights start at £318 while deals on China Eastern start at £320 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 (69%), Virgin Atlantic (68%), Korean Air( 34%).

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

    On average you can expect to pay £2,045 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is £518 while the most popular route, (London Heathrow - Incheon Intl) is currently priced at £420.

  • 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 Bell and Drum Towers. Those on a stopover in Beijing interested in visiting Summer Palace, Forbidden City, or Bell and Drum Towers can do so by traveling 17.3 mi, 15.1 mi, and 13.9 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 £676). Flying from London Heathrow Airport to Seoul in July is currently the most expensive (average of £1,188). 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 27 March 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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£343Average£418FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£359Average£471FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£380Average£565FlexibilityNo cancel feeOn-time67%
Search Air China flights
SAUDIACheapest£426Average£490FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
LufthansaCheapest£488Average£651FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Etihad AirwaysCheapest£544Average£679FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
LOTCheapest£545Average£730FlexibilityNo cancel feeOn-time81%
Search LOT flights
FinnairCheapest£557Average£719FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£565Average£779FlexibilityNo cancel feeOn-time77%
Search Air France flights
Turkish AirlinesCheapest£570Average£642FlexibilityNo 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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