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$376+ Cheap flights from Heathrow (LHR) to Seoul (SEL)

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
Apr 25 — May 21
Sat 4/25
Sat 5/2
1 adult, Economy
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Find cheap flights from Heathrow to Seoul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from London Heathrow to Seoul are usually found in November or January, booked 27 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap 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 March 26, 2026.

This China Eastern deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:20 pm
LHR
-
ICN
1 stop15h 25m
China Eastern
Mon 11/308:55 am
ICN
-
LHR
1 stop17h 35m
China Eastern
Deal found 3/22$565
This China Eastern deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:20 pm
LHR
-
ICN
1 stop33h 50m
China Eastern
Tue 5/1212:15 pm
ICN
-
LHR
2 stops38h 25m
China Eastern
Deal found 3/21$573
This China Eastern deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:20 pm
LHR
-
ICN
1 stop34h 00m
China Eastern
Sat 5/94:35 pm
ICN
-
LHR
2 stops34h 05m
China Eastern
Deal found 3/21$575
This China Eastern deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:20 pm
LHR
-
ICN
2 stops29h 40m
China Eastern
Sat 10/173:55 pm
ICN
-
LHR
2 stops34h 45m
China Eastern
Deal found 3/24$581
This China Eastern deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:20 pm
LHR
-
ICN
2 stops31h 55m
China Eastern
Sat 5/93:55 pm
ICN
-
LHR
2 stops34h 45m
China Eastern
Deal found 3/21$582
This FlightHub deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:20 pm
LHR
-
ICN
1 stop32h 10m
China Eastern
Sat 5/912:55 pm
ICN
-
LHR
1 stop37h 45m
China Eastern
Deal found 3/21$590
This oojo deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:10 pm
LHR
-
ICN
1 stop31h 45m
Shenzhen Airlines
Sat 11/214:45 pm
ICN
-
LHR
1 stop35h 25m
Shenzhen Airlines
Deal found 3/23$605
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/19:10 pm
LHR
-
ICN
1 stop33h 35m
Shenzhen Airlines
Sat 11/282:55 pm
ICN
-
LHR
1 stop37h 15m
Shenzhen Airlines
Deal found 3/25$608
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:05 pm
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Sat 6/135:45 pm
ICN
-
LHR
1 stop34h 15m
Shenzhen Airlines
Deal found 3/25$609
This China Eastern deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:20 pm
LHR
-
ICN
1 stop34h 00m
China Eastern
Wed 5/612:15 pm
ICN
-
LHR
2 stops38h 25m
China Eastern
Deal found 3/23$620
This China Eastern deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:20 pm
LHR
-
ICN
1 stop15h 25m
China Eastern
Sat 5/98:15 pm
ICN
-
LHR
2 stops30h 25m
China Eastern
Deal found 3/25$622
This China Eastern deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:20 pm
LHR
-
GMP
1 stop29h 40m
China Eastern
Wed 6/108:50 pm
GMP
-
LHR
1 stop29h 50m
China Eastern
Deal found 3/26$652

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 March 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$565
(China Eastern)

One-way from

$376
(FlightHub)

Popular in

July

Cheapest in

November

Average price

$990

Good round-trip deal

$922 or less

Good one-way deal

$632 or less
Provider with most accurate pricing for London Heathrow-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Seoul (SEL) flights.
Search Deals
From London Heathrow to Seoul (SEL)
Search Deals
One-way flight from London Heathrow to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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

 
Customize 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 2,558,603 searches. Data last updated March 26, 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 round-trip

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 5/28

9:20 pm-11:00 am

1 stop29h 40m

Seoul Gimpo Intl

Sat 6/6

8:50 pm-6:40 pm

1 stop29h 50m

$788

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 6/3

9:30 am-10:50 am

1 stop17h 20m

Incheon Intl

Sun 6/14

5:45 pm-7:00 am

1 stop21h 15m

$859

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 5/31

4:35 pm-1:20 pm

Nonstop12h 45m

Incheon Intl

Fri 6/5

7:50 am-2:20 pm

Nonstop14h 30m

$873

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 4/8

9:10 pm-10:50 am

1 stop29h 40m

Incheon Intl

Wed 4/29

5:50 pm-1:30 pm

1 stop27h 40m

$907

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 6/9

1:55 pm-6:35 pm

2 stops20h 40m

Incheon Intl

Tue 6/23

11:35 pm-12:55 pm

2 stops21h 20m

$970

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 5/31

6:15 am-3:10 pm

2 stops24h 55m

Incheon Intl

Thu 6/11

8:55 am-8:55 pm

2 stops20h 00m

$1,032

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 7/1

4:35 pm-1:20 pm

Nonstop12h 45m

Incheon Intl

Wed 7/15

7:50 am-2:20 pm

Nonstop14h 30m

$1,076

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 4/17

10:05 pm-1:20 pm

2 stops31h 15m

Incheon Intl

Wed 5/6

2:25 pm-8:00 pm

2 stops61h 35m

$1,244

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 4/19

9:20 pm-11:00 am

1 stop29h 40m

Seoul Gimpo Intl

Sun 4/26

8:50 pm-6:40 pm

1 stop29h 50m

$1,313
Quickest round-trip

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 5/8

7:35 pm-4:15 pm

Nonstop12h 40m

Incheon Intl

Sun 5/17

10:55 am-5:20 pm

Nonstop14h 25m

$1,314

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 47 resultsSorted by cheapest first
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Compare providers for flights from Heathrow to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Seoul in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Heathrow to Seoul. Price data was last updated on March 13, 2026.

Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $453). Flying from London Heathrow Airport to Seoul in July is currently the most expensive (average of $799). 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 March 26, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Seoul as you normally would.

How much does it cost to fly round-trip from London Heathrow Airport to Seoul?

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

Share of 1-stop round-trip flights from London Heathrow Airport to Seoul chosen by Cheapflights users in the past 12 months, using the same layover each way.

Beijing (PEK) – chosen by Cheapflights users on 36% of 1-stop itineraries from London Heathrow Airport to Seoul on Cheapflights.

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

Average round-trip fare for 1-stop flights from London Heathrow Airport to Seoul, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Beijing (PEK) is the most affordable 1-stop option, with an average round-trip price of $544.

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

Shortest average travel time for 1-stop one-way flights from London Heathrow Airport to Seoul, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 14h 25m.

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

Average layover duration for 1-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 layover time of 1h 28m.

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 March 26, 2026.
Peruse reviews from past customers who have flown with Korean Air,Asiana Airlines, andVirgin Atlantic from London Heathrow Airport to Seoul to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,203 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

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
1,203 reviews
Korean Air
8.4
Very good
1,203 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

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
506 reviews
Korean Air
8.4
Very good
1,203 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

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
685 reviews
Korean Air
8.4
Very good
1,203 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

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
7,871 reviews
Korean Air
8.4
Very good
1,203 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

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 Etihad Airways, Asiana Airlines, and Scandinavian Airlines fly from London Heathrow Airport to Seoul in about 12h 45m. The time it takes to get you to your destination can typically vary by up to 7h 55m. London Heathrow Airport and Seoul are separated by a distance of 5503 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from London Heathrow Airport to Seoul is Lufthansa. Our recent data shows that you can find tickets from as low as $620 on this airline. Additional options worth looking into are Korean Air and Asiana Airlines, starting at $821 and $884 round-trip. Lufthansa is priced at 27% 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?

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as $368. However, be on the lookout for offers from Air China and Asiana Airlines, as they are both options that can get you from London Heathrow Airport to Seoul for a low price.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Seoul on time: Korean Air (98%), Virgin Atlantic (95%), Asiana Airlines (82%).

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

    On average you can expect to pay $1,142 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is $598 while the most popular route, (London Heathrow - Seoul Gimpo Intl) is currently priced at $995.

  • 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 vacation 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 $453). Flying from London Heathrow Airport to Seoul in July is currently the most expensive (average of $799). 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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Alternative routes for Heathrow to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Incheon Intl flights

Top 4 airlines flying from Heathrow to Seoul

Discover the top 4 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 2,558,603 searches. Data last updated March 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$620Average$984FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$821Average$1,200FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$884Average$1,374FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$906Average$1,061FlexibilityNo cancel feeOn-time72%

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