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$383+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
mrt. 11 — mrt. 181
wo 3/11
wo 3/18
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Seoul are usually found in November or January, booked 29 days in advance, depart on a Monday or Wednesday 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 februari 9, 2026.

This oojo deal was found by Cheapflights users on 2/7. 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.
wo 3/118:25 pm
LHR
-
GMP
1 stop31h 40m
Air China
wo 3/182:25 pm
GMP
-
LHR
1 stop36h 30m
Air China
Deal found 2/7$544
This FlightHub deal was found by Cheapflights users on 2/8. 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.
do 4/239:00 pm
LHR
-
ICN
1 stop17h 10m
China Southern
do 6/44:45 pm
ICN
-
LHR
1 stop34h 15m
China Southern
Deal found 2/8$547
This Kiwi.com deal was found by Cheapflights users on 2/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 3/119:30 pm
LHR
-
ICN
1 stop15h 45m
China Southern
zo 3/159:25 am
ICN
-
LHR
1 stop18h 10m
China Southern
Deal found 2/7$553
This oojo deal was found by Cheapflights users on 2/7. 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.
di 4/289:00 pm
LHR
-
ICN
1 stop17h 10m
China Southern
do 5/74:45 pm
ICN
-
LHR
1 stop34h 15m
China Southern
Deal found 2/7$555
This oojo deal was found by Cheapflights users on 2/8. 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.
za 5/910:40 pm
LHR
-
ICN
1 stop15h 20m
Air China
do 5/211:05 pm
ICN
-
LHR
1 stop15h 20m
Air China
Deal found 2/8$558
This Gotogate deal was found by Cheapflights users on 2/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/109:30 pm
LHR
-
ICN
1 stop15h 45m
China Southern
za 3/144:15 pm
ICN
-
LHR
1 stop35h 20m
China Southern
Deal found 2/7$560
This Booking.com deal was found by Cheapflights users on 2/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 3/89:30 pm
LHR
-
ICN
1 stop15h 45m
China Southern
zo 3/154:15 pm
ICN
-
LHR
1 stop33h 45m
China Southern
Deal found 2/8$561
This Gotogate deal was found by Cheapflights users on 2/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 3/97:35 pm
LHR
-
ICN
1 stop17h 15m
China Southern
ma 3/164:15 pm
ICN
-
LHR
1 stop35h 20m
China Southern
Deal found 2/8$563
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 5/1010:40 pm
LHR
-
ICN
1 stop15h 20m
Air China
vr 5/2210:50 am
ICN
-
LHR
1 stop14h 50m
Air China
Deal found 2/8$567
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 5/910:40 pm
LHR
-
ICN
1 stop15h 20m
Air China
za 5/231:05 pm
ICN
-
LHR
1 stop15h 20m
Air China
Deal found 2/8$568
This Air China deal was found by Cheapflights users on 2/9. 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
di 3/108:25 pm
LHR
-
ICN
1 stop16h 30m
Air China
ma 3/1611:10 am
ICN
-
LHR
1 stop15h 45m
Air China
Deal found 2/9$569
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
do 5/78:25 pm
LHR
-
ICN
1 stop17h 35m
Air China
ma 5/251:05 pm
ICN
-
LHR
1 stop15h 20m
Air China
Deal found 2/8$572

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 februari 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$544
(oojo)

One-way from

$383
(FlightHub)

Popular in

July

Cheapest in

November

Average price

$749

Good round-trip deal

$912 or less

Good one-way deal

$568 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. 12% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 februari 9, 2026.
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

zo 5/10

9:00 pm-12:25 pm

1 stop31h 25m

Seoul Gimpo Intl

wo 5/20

1:25 pm-6:05 pm

1 stop36h 40m

$690

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

wo 3/11

9:00 pm-11:00 am

2 stops53h 00m

Incheon Intl

zo 3/15

8:55 am-5:30 pm

1 stop17h 35m

$763

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

za 3/14

9:00 pm-1:15 pm

3 stops31h 15m

Incheon Intl

zo 3/29

8:55 am-5:40 pm

1 stop17h 45m

$785

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

ma 3/9

7:50 pm-7:00 pm

2 stops38h 10m

Incheon Intl

vr 3/13

11:45 pm-4:00 pm

1 stop25h 15m

$799

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

di 3/10

10:35 am-7:00 pm

2 stops23h 25m

Incheon Intl

ma 3/16

11:45 pm-2:35 pm

2 stops23h 50m

$803

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

vr 4/17

1:15 pm-10:40 am

1 stop37h 25m

Incheon Intl

zo 4/26

12:15 pm-7:00 pm

1 stop38h 45m

$805

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

di 4/28

1:25 pm-10:30 am

Nonstop13h 05m

Incheon Intl

ma 5/11

12:20 pm-6:50 pm

Nonstop14h 30m

$852

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

wo 4/15

1:25 pm-10:30 am

Nonstop13h 05m

Incheon Intl

za 4/25

12:20 pm-6:50 pm

Nonstop14h 30m

$852

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

do 4/23

1:25 pm-10:30 am

Nonstop13h 05m

Incheon Intl

do 6/4

12:20 pm-6:50 pm

Nonstop14h 30m

$854

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

di 4/28

7:35 pm-4:15 pm

Nonstop12h 40m

Incheon Intl

do 5/7

10:55 am-5:20 pm

Nonstop14h 25m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 46 results
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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 February.
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 February 6, 2026.

Booking 29 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 $802). 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 februari 9, 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.

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 februari 9, 2026.

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).

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 februari 9, 2026.
Peruse reviews from past customers who have flown with Korean Air, Asiana Airlines, and Lufthansa 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
1,189 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
1,189 reviews
Korean Air
8.4
Very good
1,189 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
505 reviews
Korean Air
8.4
Very good
1,189 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

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
7,775 reviews
Korean Air
8.4
Very good
1,189 reviews

Crew

8.7

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

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 China Southern, Air China, and China Airlines fly from London Heathrow Airport to Seoul in about 15h 20m. The time it takes to get you to your destination can typically vary by up to 16h 25m. 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 Air China, with whom users have recently found tickets for as low as $370. However, be on the lookout for offers from Asiana Airlines and Korean Air, 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 (80%), Virgin Atlantic (80%), Asiana Airlines (72%).

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

    On average you can expect to pay $775 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is $544 while the most popular route, (London Heathrow - Incheon Intl) is currently priced at $548.

  • 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 $802). 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.

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 3 airlines flying from Heathrow to Seoul

Discover the top 3 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 februari 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$620Average$984FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$821Average$1,200FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$884Average$1,461FlexibilityNo cancel feeOn-time76%

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