HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$267+ Cheap flights from Seoul (SEL) to Heathrow (LHR)

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seoul to Heathrow 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”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seoul to London Heathrow are usually found in March or May, booked 83 days in advance, depart on a Monday or Thursday and return on a Wednesday

Cheap flight deals from Seoul to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Heathrow (LHR). 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 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$517
(China Southern)

One-way from

$267
(Booking.com)

Popular in

July

Cheapest in

March

Average price

$698

Good round-trip deal

$1,000 or less

Good one-way deal

$471 or less
Provider with most accurate pricing for Seoul (SEL)-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-London Heathrow flights.
Search Deals
From Seoul (SEL) to London Heathrow
Search Deals
One-way flight from Seoul (SEL) to London Heathrow
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($92 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 March 2025
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to London Heathrow.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to London Heathrow.
Search Deals

Find flight deals from Seoul to Heathrow

Cheapest flights from Seoul to Heathrow
Explore the most affordable flight options available from Seoul to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This China Southern deal was found by Cheapflights users on 3/30. 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 Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/201:30 pmGMP - LHR
1 stop36h 35mChina Southern
Sat 5/319:00 pmLHR - GMP
1 stop31h 25mChina Southern
Deal found 3/30$517
This FlightHub deal was found by Cheapflights users on 3/31. 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.
Thu 5/88:50 pmGMP - LHR
1 stop29h 50mChina Eastern
Thu 5/159:20 pmLHR - GMP
1 stop29h 40mChina Eastern
Deal found 3/31$563
This oojo deal was found by Cheapflights users on 3/31. 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 5/122:25 pmGMP - LHR
1 stop35h 20mAir China
Wed 5/218:25 pmLHR - GMP
1 stop32h 40mAir China
Deal found 3/31$588
This Malaysia Airlines deal was found by Cheapflights users on 3/30. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2112:10 amICN - LHR
1 stop24h 25mMalaysia Airlines
Thu 9/2511:00 amLHR - ICN
1 stop27h 30mMalaysia Airlines
Deal found 3/30$615
This Lufthansa deal was found by Cheapflights users on 3/31. 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 11/261:30 pmICN - LHR
1 stop18h 25mLufthansa
Mon 12/110:30 amLHR - ICN
1 stop15h 20mLufthansa
Deal found 3/31$635
This Gotogate deal was found by Cheapflights users on 3/30. 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.
Fri 6/209:25 amICN - LHR
1 stop16h 40mMultiple Airlines
Mon 6/3010:00 pmLHR - ICN
2 stops39h 30mMultiple Airlines
Deal found 3/30$638
This SWISS deal was found by Cheapflights users on 3/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2110:05 amICN - LHR
1 stop17h 15mSWISS
Tue 5/277:00 amLHR - ICN
2 stops17h 25mSWISS
Deal found 3/29$642
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/110:25 pmICN - LHR
1 stop18h 35mKLM
Fri 5/22:45 pmLHR - ICN
1 stop17h 40mKLM
Deal found 3/30$651
This oojo deal was found by Cheapflights users on 3/30. 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.
Wed 4/21:35 amICN - LHR
1 stop25h 10mEtihad Airways
Wed 4/162:45 pmLHR - ICN
1 stop36h 00mEtihad Airways
Deal found 3/30$678
This Shenzhen Airlines deal was found by Cheapflights users on 3/30. 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 Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/94:40 pmICN - LHR
1 stop35h 10mShenzhen Airlines
Fri 6/610:05 pmLHR - ICN
1 stop31h 35mShenzhen Airlines
Deal found 3/30$700
This FlightHub deal was found by Cheapflights users on 3/30. 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 5/208:15 pmICN - LHR
2 stops30h 25mChina Eastern
Sat 5/319:20 pmLHR - ICN
2 stops29h 55mChina Eastern
Deal found 3/30$706
This China Southern deal was found by Cheapflights users on 3/30. 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 Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2011:25 amICN - LHR
2 stops38h 40mChina Southern
Sat 5/319:00 pmLHR - ICN
1 stop17h 10mChina Southern
Deal found 3/30$756

Cheapflights Fare Finder

Customize your flight search to find flights from Seoul to Heathrow 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 31, 2025.
Use the filters below to find and compare flights from Seoul to London Heathrow Airport that are best for you.

Fly from

Seoul

Fly to

Heathrow

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 5/20

1:30 pm-6:05 pm

1 stop36h 35m

London Heathrow

Sat 5/31

9:00 pm-12:25 pm

1 stop31h 25m

$517

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 5/8

8:50 pm-6:40 pm

1 stop29h 50m

London Heathrow

Thu 5/15

9:20 pm-11:00 am

1 stop29h 40m

$563

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 5/12

2:25 pm-5:45 pm

1 stop35h 20m

London Heathrow

Wed 5/21

8:25 pm-1:05 pm

1 stop32h 40m

$588

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 9/21

12:10 am-4:35 pm

1 stop24h 25m

London Heathrow

Wed 10/1

9:35 pm-7:10 am

1 stop25h 35m

$615

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 6/20

9:25 am-6:05 pm

1 stop16h 40m

London Heathrow

Mon 6/30

10:00 pm-9:30 pm

2 stops39h 30m

$638

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 5/21

10:05 am-7:20 pm

1 stop17h 15m

London Heathrow

Tue 5/27

7:00 am-8:25 am

2 stops17h 25m

$642

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 4/10

10:25 pm-9:00 am

1 stop18h 35m

London Heathrow

Wed 4/16

5:10 pm-4:25 pm

1 stop15h 15m

$651

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 5/29

12:25 pm-8:15 am

2 stops27h 50m

London Heathrow

Mon 6/2

7:25 am-9:55 am

1 stop18h 30m

$670

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 8/4

1:35 am-3:15 pm

1 stop21h 40m

London Heathrow

Tue 8/19

8:55 pm-10:05 pm

1 stop17h 10m

$681

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 5/9

4:40 pm-7:50 pm

1 stop35h 10m

London Heathrow

Fri 6/6

10:05 pm-1:40 pm

1 stop31h 35m

$700

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 47 results
1
2
3
...
5

Compare providers for flights from Seoul to Heathrow

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 Seoul to Heathrow in March.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Seoul-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-London Heathrow Airport 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 Seoul-London Heathrow Airport 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 Seoul to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Seoul 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 Seoul to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Seoul to Heathrow. Price data was last updated on March 28, 2025.

The best time to book flights from Seoul to London Heathrow Airport is 83 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 Seoul to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of $661). Flying from Seoul to London Heathrow Airport in June is currently the most expensive (average of $1,110). 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 SEL to LHR?

Find hourly flight availability from Seoul to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

It’s typically best to fly out from Seoul to London Heathrow Airport in the afternoon. Doing so could potentially save you 13% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Seoul to London Heathrow Airport

Explore weekly flight availability from Seoul to Heathrow. 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 March 31, 2025.

The most flights from SEL to LHR 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 Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated March 31, 2025.
To help decide which airline to fly from Seoul to London, see what other customers have to say about EVA Air, Korean Air and Japan Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,170 reviews

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,170 reviews
EVA Air
8.4
Very good
1,170 reviews

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Korean Air
8.4
Very good
1,051 reviews
EVA Air
8.4
Very good
1,170 reviews

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,170 reviews

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
ANA
8.3
Very good
831 reviews
EVA Air
8.4
Very good
1,170 reviews

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
China Airlines
8.2
Very good
723 reviews
EVA Air
8.4
Very good
1,170 reviews

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Boarding

8.4

Food

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

Find useful and relevant information for your journey from Seoul to Heathrow. 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 Seoul to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Seoul to London Heathrow Airport round-trip from $517. Other airlines that can offer you cheap pricing are China Eastern, from $563, and Air China, from $588. You may be able to fly from Seoul to London Heathrow Airport for 41% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seoul to London Heathrow Airport one-way?

    The cheapest airlines for a one-way flight from Seoul to London Heathrow Airport are Air China ($267), Malaysia Airlines ($276), and Vietnam Airlines ($289).

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

    Consider Korean Air (69%), Asiana Airlines (67%) or Virgin Atlantic (66%) when booking your flight. These represent the most reliable airlines when flying from Seoul to London Heathrow Airport.

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

    While on average a flight from Seoul to London Heathrow Airport is generally $1,068, our data shows the cheapest flight currently is $463. When looking at the most popular route, (Incheon Intl - London Heathrow), you can expect to pay $508 for that flight.

  • Can I find deals for flights from Seoul to Heathrow that include hotel bookings?

    Yes. In addition to deals on Seoul to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Heathrow.

  • Can I find deals for business class flights from Seoul to Heathrow?

    Yes. Cheapflights offers flight deals from Seoul to Heathrow 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 Seoul to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of $661). Flying from Seoul to London Heathrow Airport in June is currently the most expensive (average of $1,110). 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

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Dover
Gatwick
Orpington
Watford
Milton Keynes
Northampton
Stratford-upon-Avon
Croydon
Borehamwood
Folkestone
Ilford
Broadway

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 Seoul to Heathrow

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

Top 6 airlines flying from Seoul to Heathrow

Discover the top 6 airlines that operate flights from Seoul to Heathrow. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$552Average$748FlexibilityNo cancel feeOn-time67%
Etihad AirwaysCheapest$672Average$836FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$682Average$842FlexibilityNo cancel feeOn-time76%
Asiana AirlinesCheapest$897Average$1,026FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$976Average$1,183FlexibilityNo cancel feeOn-time81%
KLMCheapest$1,630Average$1,695FlexibilityNo cancel feeOn-time75%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.