HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seoul

$404+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

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 London Heathrow to Seoul are usually found in November or February, booked 77 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap 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 junio 12, 2025.

Round-trip from

$612
(Lufthansa)

One-way from

$404
(FlightHub)

Popular in

July

Cheapest in

November

Average price

$803

Good round-trip deal

$1,137 or less

Good one-way deal

$813 or less
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. 13% potential increase in price ($133 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
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

Find 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 junio 12, 2025.

This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/108:30 amLHR - ICN
1 stop17h 20mLufthansa
mié. 11/191:05 pmICN - LHR
1 stop16h 45mLufthansa
Deal found 6/10$612
This Shenzhen 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 Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/110:05 pmLHR - ICN
1 stop31h 35mShenzhen Airlines
dom. 9/72:40 pmICN - LHR
1 stop37h 10mShenzhen Airlines
Deal found 6/12$623
This China Southern 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 China Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/279:30 pmLHR - ICN
1 stop15h 55mChina Southern
lun. 11/34:15 pmICN - LHR
1 stop35h 00mChina Southern
Deal found 6/10$665
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1910:10 pmLHR - ICN
1 stop31h 45mMultiple Airlines
vie. 10/1012:10 amICN - LHR
1 stop24h 25mMultiple Airlines
Deal found 6/10$689
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/107:50 pmLHR - ICN
2 stops38h 10mScandinavian Airlines
lun. 11/1711:45 pmICN - LHR
1 stop25h 15mScandinavian Airlines
Deal found 6/11$691
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/279:30 pmLHR - GMP
1 stop29h 55mChina Southern
lun. 11/31:45 pmGMP - LHR
1 stop37h 10mChina Southern
Deal found 6/10$701
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/110:15 amLHR - ICN
1 stop36h 10mLOT
lun. 9/1511:20 amICN - LHR
1 stop30h 00mLOT
Deal found 6/10$719
This Air China 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 Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1910:40 pmLHR - GMP
1 stop30h 25mAir China
sáb. 10/112:25 pmGMP - LHR
1 stop35h 20mAir China
Deal found 6/10$741
This Etihad Airways deal was found by Cheapflights users on 6/9. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/82:45 pmLHR - ICN
1 stop23h 20mEtihad Airways
vie. 7/111:35 amICN - LHR
1 stop21h 40mEtihad Airways
Deal found 6/9$780
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/179:20 pmLHR - ICN
1 stop15h 25mChina Eastern
sáb. 6/212:15 pmICN - LHR
2 stops36h 25mChina Eastern
Deal found 6/10$814
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/254:10 pmLHR - ICN
1 stop35h 10mFinnair
mié. 9/39:50 pmICN - LHR
1 stop25h 20mFinnair
Deal found 6/12$826
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/177:15 pmLHR - ICN
2 stops53h 10mSWISS
mié. 9/2410:05 amICN - LHR
1 stop19h 40mSWISS
Deal found 6/10$827

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 junio 12, 2025.
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

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

lun. 11/10

8:30 am-10:50 am

1 stop17h 20m

Incheon Intl

mié. 11/19

1:05 pm-8:50 pm

1 stop16h 45m

$612

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

lun. 10/27

9:10 pm-1:55 pm

1 stop31h 45m

Incheon Intl

sáb. 11/15

2:55 pm-7:10 pm

1 stop37h 15m

$624

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

lun. 10/27

9:30 pm-10:25 pm

1 stop15h 55m

Incheon Intl

lun. 11/3

4:15 pm-6:15 pm

1 stop35h 00m

$665

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

vie. 9/19

10:10 pm-1:55 pm

1 stop31h 45m

Incheon Intl

vie. 10/10

12:10 am-4:35 pm

1 stop24h 25m

$689

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

lun. 11/10

7:50 pm-7:00 pm

2 stops38h 10m

Incheon Intl

lun. 11/17

11:45 pm-4:00 pm

1 stop25h 15m

$691

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

lun. 10/27

9:30 pm-12:25 pm

1 stop29h 55m

Seoul Gimpo Intl

lun. 11/3

1:45 pm-5:55 pm

1 stop37h 10m

$701

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

lun. 9/1

10:15 am-6:25 am

1 stop36h 10m

Incheon Intl

lun. 9/15

11:20 am-9:20 am

1 stop30h 00m

$719

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

vie. 9/19

10:40 pm-1:05 pm

1 stop30h 25m

Seoul Gimpo Intl

sáb. 10/11

2:25 pm-5:45 pm

1 stop35h 20m

$741

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

mar. 7/8

2:45 pm-10:05 pm

1 stop23h 20m

Incheon Intl

vie. 7/11

1:35 am-3:15 pm

1 stop21h 40m

$780

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

mar. 9/2

4:10 pm-11:20 am

1 stop35h 10m

Incheon Intl

dom. 9/7

9:50 pm-12:10 pm

1 stop22h 20m

$800

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 46 results
1
2
3
...
5

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 June 9, 2025.

Booking 77 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of $1,000). Flying from London Heathrow Airport to Seoul in December is currently the most expensive (average of $1,635). 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 junio 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 40% on flights from London Heathrow Airport to Seoul by exploring options for tickets in the morning.

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 junio 12, 2025.

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).

Rainfall in Seoul by month

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

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

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

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 junio 12, 2025.
To help decide which airline to fly from London to Seoul, see what other customers have to say about EVA Air, Korean Air and Japan Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

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

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

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
Korean Air
8.4
Very good
1,088 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

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
1,490 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

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

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

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
Asiana Airlines
8.2
Very good
440 reviews
EVA Air
8.4
Very good
1,202 reviews

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.4

Comfort

8.3

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 Heathrow to Seoul. 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 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 $612 on this airline. Additional options worth looking into are Shenzhen Airlines and China Southern, starting at $624 and $665 round-trip. Lufthansa is priced at 29% 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 Hainan Airlines, with whom users have recently found tickets for as low as $404. However, be on the lookout for offers from China Southern and Lufthansa, 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: Asiana Airlines (80%), Korean Air (80%), Virgin Atlantic (80%).

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

    On average you can expect to pay $1,357 for a flight from London Heathrow Airport to Seoul. The cheapest flight overall is $749 while the most popular route, (London Heathrow - Incheon Intl) is currently priced at $599.

  • 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul (average of $1,000). Flying from London Heathrow Airport to Seoul in December is currently the most expensive (average of $1,635). 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$528Average$787FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$620Average$813FlexibilityNo cancel feeOn-time76%
Asiana AirlinesCheapest$990Average$1,292FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$1,003Average$1,155FlexibilityNo cancel feeOn-time81%

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.