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Heathrow

$265+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seoul to London Heathrow are usually found in March or December, booked 83 days in advance, depart on a Monday or Wednesday 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 junio 12, 2025.

Round-trip from

$591
(Mytrip)

One-way from

$265
(Lufthansa)

Popular in

May

Cheapest in

March

Average price

$841

Good round-trip deal

$985 or less

Good one-way deal

$685 or less
From Seoul (SEL) to London Heathrow
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One-way flight from Seoul (SEL) to London Heathrow
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Highest demand for flights based on searches. 4% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Seoul (SEL) to London Heathrow.
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Price to beat on a one-way flight from Seoul (SEL) to London Heathrow.
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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 junio 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/195:50 pmICN - LHR
1 stop34h 40mAir China
mié. 6/258:25 pmLHR - ICN
1 stop17h 20mAir China
Deal found 6/10$591
This China Southern deal was found by Cheapflights users on 6/12. 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 China Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/173:15 pmICN - LHR
1 stop35h 45mChina Southern
mar. 6/249:00 pmLHR - ICN
1 stop17h 10mChina Southern
Deal found 6/12$621
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/710:05 amICN - LHR
1 stop29h 50mSWISS
jue. 8/218:05 pmLHR - ICN
1 stop28h 20mSWISS
Deal found 6/11$639
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/1511:40 amICN - LHR
1 stop19h 00mLufthansa
lun. 10/209:00 amLHR - ICN
1 stop16h 55mLufthansa
Deal found 6/11$656
This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/212:05 pmICN - LHR
1 stop18h 20mMultiple Airlines
jue. 12/1111:45 amLHR - ICN
1 stop20h 10mMultiple Airlines
Deal found 6/12$657
This Malaysia Airlines deal was found by Cheapflights users on 6/11. 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 Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/411:05 amICN - LHR
1 stop27h 30mMalaysia Airlines
lun. 1/199:25 pmLHR - ICN
1 stop24h 05mMalaysia Airlines
Deal found 6/11$668
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/232:40 pmICN - LHR
1 stop37h 20mShenzhen Airlines
sáb. 8/3010:05 pmLHR - ICN
1 stop31h 35mShenzhen Airlines
Deal found 6/11$746
This Etihad Airways deal was found by Cheapflights users on 6/12. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/161:35 amICN - LHR
1 stop25h 10mEtihad Airways
mar. 6/249:45 pmLHR - ICN
1 stop16h 20mEtihad Airways
Deal found 6/12$750
This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/38:55 amICN - LHR
1 stop17h 45mChina Eastern
lun. 8/49:20 pmLHR - ICN
1 stop32h 10mChina Eastern
Deal found 6/11$773
This Air France deal was found by Cheapflights users on 6/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/98:30 amICN - LHR
1 stop20h 55mAir France
mar. 9/166:15 amLHR - ICN
1 stop16h 15mAir France
Deal found 6/11$781
This Finnair deal was found by Cheapflights users on 6/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/2311:00 pmICN - LHR
1 stop30h 40mFinnair
vie. 1/164:15 pmLHR - ICN
1 stop35h 10mFinnair
Deal found 6/10$787
This Vietnam Airlines deal was found by Cheapflights users on 6/12. 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 Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/85:55 pmICN - LHR
1 stop31h 55mVietnam Airlines
mié. 9/176:55 pmLHR - ICN
1 stop37h 40mVietnam Airlines
Deal found 6/12$796

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 junio 12, 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

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

lun. 7/7

10:05 am-7:55 am

1 stop29h 50m

London Heathrow

jue. 8/21

8:05 pm-8:25 am

1 stop28h 20m

$639

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

mié. 10/15

11:40 am-10:40 pm

1 stop19h 00m

London Heathrow

lun. 10/20

9:00 am-9:55 am

1 stop16h 55m

$656

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

mar. 12/2

12:05 pm-9:25 pm

1 stop18h 20m

London Heathrow

jue. 12/11

11:45 am-4:55 pm

1 stop20h 10m

$657

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

jue. 12/4

11:05 am-5:35 am

1 stop27h 30m

London Heathrow

lun. 1/19

9:25 pm-6:30 am

1 stop24h 05m

$668

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

jue. 11/13

10:40 am-5:50 pm

1 stop16h 10m

London Heathrow

jue. 11/13

8:25 pm-4:35 pm

1 stop35h 10m

$734

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

sáb. 8/23

2:40 pm-8:00 pm

1 stop37h 20m

London Heathrow

sáb. 8/30

10:05 pm-1:40 pm

1 stop31h 35m

$746

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

jue. 7/3

8:55 am-6:40 pm

1 stop17h 45m

London Heathrow

lun. 8/4

9:20 pm-1:30 pm

1 stop32h 10m

$773

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

mar. 9/9

8:30 am-9:25 pm

1 stop20h 55m

London Heathrow

mar. 9/16

6:15 am-6:30 am

1 stop16h 15m

$781

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

lun. 9/8

5:55 pm-5:50 pm

1 stop31h 55m

London Heathrow

mié. 9/17

6:55 pm-4:35 pm

1 stop37h 40m

$796

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

dom. 7/20

6:30 pm-6:45 pm

1 stop32h 15m

London Heathrow

jue. 7/31

8:55 pm-10:05 pm

1 stop17h 10m

$809

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 39 results
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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 June 9, 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 $1,108). 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 junio 12, 2025.

It’s typically best to fly out from Seoul to London Heathrow Airport in the afternoon. Doing so could potentially save you 8% 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 junio 12, 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 junio 12, 2025.
To help decide which airline to fly from Seoul to London, see what other customers have to say about EVA Air, Japan Airlines and China 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
1,202 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,202 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Japan Airlines
8.3
Very good
1,489 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Airlines
8.3
Very good
738 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
ANA
8.3
Very good
882 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very good
3,264 reviews
EVA Air
8.4
Very good
1,202 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 $591. Other airlines that can offer you cheap pricing are China Southern, from $621, and SWISS, from $639. You may be able to fly from Seoul to London Heathrow Airport for 34% 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 Lufthansa ($265), China Eastern ($282), and Vietnam Airlines ($292).

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

    Consider Virgin Atlantic (56%), Korean Air (45%) or Asiana Airlines (41%) 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 $1,895, our data shows the cheapest flight currently is $676. When looking at the most popular route, (Incheon Intl - London Heathrow), you can expect to pay $545 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 $1,108). 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?

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Browse thousands of different options on Cheapflights for your next trip

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$550Average$764FlexibilityNo cancel feeOn-time67%
FinnairCheapest$624Average$759FlexibilityNo cancel feeOn-time76%
Etihad AirwaysCheapest$672Average$806FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$682Average$948FlexibilityNo cancel feeOn-time76%
Asiana AirlinesCheapest$822Average$973FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$847Average$1,198FlexibilityNo cancel feeOn-time81%

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