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$446+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
Jun 11 — Jun 181
Thu 6/11
Thu 6/18
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 70 days in advance, depart on a Saturday or Monday and return on a Saturday

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 May 12, 2026.

This FlightHub deal was found by Cheapflights users on 5/11. 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.
Tue 9/221:15 pm
LHR
-
ICN
1 stop37h 25m
Air India
Wed 9/3012:20 pm
ICN
-
LHR
1 stop31h 45m
Air India
Deal found 5/11$733
This Trip.com deal was found by Cheapflights users on 5/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:30 am
LHR
-
ICN
1 stop17h 20m
Multiple Airlines
Wed 6/102:30 pm
ICN
-
LHR
1 stop36h 10m
Multiple Airlines
Deal found 5/9$738
This Justfly.com deal was found by Cheapflights users on 5/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:45 am
LHR
-
ICN
1 stop40h 55m
Air India
Wed 10/2112:20 pm
ICN
-
LHR
1 stop38h 40m
Air India
Deal found 5/12$740
This Super.com deal was found by Cheapflights users on 5/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:30 am
LHR
-
ICN
1 stop17h 20m
Etihad Airways
Tue 5/265:50 pm
ICN
-
LHR
1 stop29h 15m
Etihad Airways
Deal found 5/12$743
This oojo deal was found by Cheapflights users on 5/11. 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 5/298:25 pm
LHR
-
ICN
1 stop30h 25m
Etihad Airways
Sat 6/65:50 pm
ICN
-
LHR
1 stop21h 10m
Etihad Airways
Deal found 5/11$744
This Justfly.com deal was found by Cheapflights users on 5/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:30 am
LHR
-
ICN
1 stop17h 20m
Etihad Airways
Wed 10/75:45 pm
ICN
-
LHR
1 stop27h 00m
Etihad Airways
Deal found 5/12$745
This oojo deal was found by Cheapflights users on 5/11. 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.
Mon 6/222:45 pm
LHR
-
ICN
1 stop36h 05m
Etihad Airways
Sat 6/275:45 pm
ICN
-
LHR
1 stop33h 00m
Etihad Airways
Deal found 5/11$746
This Orbitz deal was found by Cheapflights users on 5/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:45 pm
LHR
-
ICN
1 stop30h 05m
Multiple Airlines
Mon 6/156:25 pm
ICN
-
LHR
1 stop32h 15m
Multiple Airlines
Deal found 5/9$747
This Lufthansa deal was found by Cheapflights users on 5/9. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:30 am
LHR
-
ICN
1 stop15h 20m
Lufthansa
Mon 11/161:05 pm
ICN
-
LHR
2 stops28h 00m
Lufthansa
Deal found 5/9$750
This Super.com deal was found by Cheapflights users on 5/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:30 am
LHR
-
ICN
1 stop17h 20m
Etihad Airways
Mon 6/155:45 pm
ICN
-
LHR
1 stop29h 20m
Etihad Airways
Deal found 5/11$752
This FlightHub deal was found by Cheapflights users on 5/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/257:05 am
LHR
-
ICN
2 stops26h 55m
Scandinavian Airlines
Thu 12/3111:45 pm
ICN
-
LHR
2 stops23h 50m
Scandinavian Airlines
Deal found 5/7$754
This oojo deal was found by Cheapflights users on 5/8. 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.
Sun 5/249:00 pm
LHR
-
GMP
1 stop31h 25m
China Southern
Mon 6/11:30 pm
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 5/8$810

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 May 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$733
(FlightHub)

One-way from

$446
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$805

Good round-trip deal

$1,215 or less

Good one-way deal

$653 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
High demand for flights, 13% potential price rise
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 May 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 May 12, 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

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 6/22

2:45 pm-10:50 am

1 stop36h 05m

Incheon Intl

Thu 8/13

5:45 pm-7:00 am

1 stop21h 15m

$904

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 10/2

2:45 pm-10:50 am

1 stop36h 05m

Incheon Intl

Wed 10/7

5:45 pm-7:00 am

1 stop21h 15m

$968

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 10/2

9:20 pm-12:10 pm

2 stops30h 50m

Incheon Intl

Wed 10/7

4:35 pm-6:40 pm

2 stops34h 05m

$1,003

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 9/30

9:20 pm-12:25 pm

2 stops31h 05m

Incheon Intl

Wed 10/7

2:15 pm-6:40 pm

2 stops36h 25m

$1,073

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 10/2

8:25 am-7:10 am

2 stops38h 45m

Incheon Intl

Sun 10/11

11:00 am-6:30 am

2 stops27h 30m

$1,079

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 7/1

3:50 pm-10:30 am

2 stops34h 40m

Incheon Intl

Wed 8/12

1:20 am-8:00 am

1 stop38h 40m

$1,092

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 6/22

3:05 pm-10:25 pm

2 stops23h 20m

Seoul Gimpo Intl

Fri 7/3

1:55 pm-8:00 am

2 stops26h 05m

$1,185

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 8/10

12:00 pm-5:05 pm

2 stops21h 05m

Incheon Intl

Sun 8/23

1:20 am-8:00 am

1 stop38h 40m

$1,187

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 6/22

10:50 am-5:05 pm

2 stops22h 15m

Incheon Intl

Fri 6/26

1:20 am-2:10 pm

1 stop20h 50m

$1,274
Quickest round-trip

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 6/10

7:35 pm-4:15 pm

Nonstop12h 40m

Incheon Intl

Sun 6/28

10:55 am-5:20 pm

Nonstop14h 25m

$1,297

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 40 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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars
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?

Booking 15 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of $409). Flying from London Heathrow Airport to Seoul in December is currently the most expensive (average of $1,890). 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 May 12, 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 May 12, 2026.

The most flights from LHR to SEL are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 40% 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 Munich (MUC) have the shortest average one-way travel time for 1-stop routes: 15h 05m.

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 Munich (MUC) offer the fastest connection on this route, with an average layover time of 1h 35m.

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 May 12, 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
1,217 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
1,217 reviews
Korean Air
8.4
Very good
1,217 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
532 reviews
Korean Air
8.4
Very good
1,217 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
7.4
Good
688 reviews
Korean Air
8.4
Very good
1,217 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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
7,993 reviews
Korean Air
8.4
Very good
1,217 reviews

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

Entertainment

8.2

Food

8.1

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 Air China, China Southern, and Etihad Airways fly from London Heathrow Airport to Seoul in about 30h 25m. The time it takes to get you to your destination can typically vary by up to 5h 40m. London Heathrow Airport and Seoul are separated by a distance of 5506 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: Virgin Atlantic (90%), Korean Air (73%), Asiana Airlines (39%).

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

    On average you can expect to pay $977 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is $449 while the most popular route, (London Heathrow - Seoul Gimpo Intl) is currently priced at $1,184.

  • 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of $409). Flying from London Heathrow Airport to Seoul in December is currently the most expensive (average of $1,890). 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 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$620Average$984FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$821Average$1,200FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$884Average$1,302FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$906Average$1,106FlexibilityNo cancel feeOn-time72%

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