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Cheap flights from Seoul to London Heathrow Airport from £156

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
28 Apr — 5 May1
1 adult

Cheapflights Tip: The best prices from Seoul to London Heathrow are usually found in March or June, booked 83 days in advance, depart on a Wednesday 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 23 April 2025.

Round-trip from

£361

One-way from

£156

Popular in

July

Cheapest in

March

Average price

£709

Good round-trip deal

£721 or less

Good one-way deal

£511 or less
China Southern
  • China Southern
  • 20/5-27/5
  • 2 total stops
  • 68h 00m total
  • Seoul to London
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China Southern
  • China Southern
  • 13/5
  • 1 total stop
  • 36h 35m total
  • Seoul to London
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Highest demand for flights based on searches. 7% potential increase in price (£42 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in April 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 23 April 2025.

Tue 20/513:30GMP - LHR
1 stop36h 35mChina Southern
Tue 27/521:00LHR - GMP
1 stop31h 25mChina Southern
Deal found 22/4£361
Thu 8/520:50GMP - LHR
1 stop29h 50mChina Eastern
Tue 20/521:20LHR - GMP
1 stop29h 40mChina Eastern
Deal found 23/4£370
Sat 10/518:25ICN - LHR
1 stop32h 15mChina Eastern
Wed 28/521:20LHR - ICN
1 stop15h 25mChina Eastern
Deal found 22/4£384
Fri 23/514:55ICN - LHR
1 stop37h 20mAir China
Sat 31/522:00LHR - ICN
1 stop30h 55mAir China
Deal found 21/4£385
Thu 15/515:15ICN - LHR
1 stop35h 45mChina Southern
Tue 17/621:00LHR - ICN
1 stop17h 10mChina Southern
Deal found 21/4£386
Sat 24/510:05ICN - LHR
1 stop29h 50mSWISS
Wed 28/519:15LHR - ICN
2 stops53h 10mSWISS
Deal found 22/4£399
Mon 12/512:55ICN - LHR
1 stop37h 45mMultiple Airlines
Mon 26/522:00LHR - ICN
2 stops39h 30mMultiple Airlines
Deal found 22/4£406
Mon 12/514:25GMP - LHR
1 stop35h 20mAir China
Tue 27/520:25LHR - GMP
1 stop32h 40mAir China
Deal found 23/4£425
Tue 20/512:00GMP - LHR
1 stop38h 40mMultiple Airlines
Tue 9/921:00LHR - GMP
1 stop31h 25mMultiple Airlines
Deal found 22/4£446
Wed 14/500:10ICN - LHR
1 stop24h 25mMalaysia Airlines
Mon 19/521:35LHR - ICN
1 stop25h 35mMalaysia Airlines
Deal found 22/4£458
Wed 21/501:35ICN - LHR
1 stop37h 25mEtihad Airways
Thu 29/509:30LHR - ICN
1 stop28h 35mEtihad Airways
Deal found 22/4£468
Thu 6/1123:00ICN - LHR
1 stop25h 15mFinnair
Mon 10/1118:10LHR - ICN
1 stop33h 10mFinnair
Deal found 22/4£474

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 23 April 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 20/5

13:30-18:05

1 stop36h 35m

London Heathrow

Tue 27/5

21:00-12:25

1 stop31h 25m

£361

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 8/5

20:50-18:40

1 stop29h 50m

London Heathrow

Tue 20/5

21:20-11:00

1 stop29h 40m

£370

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 10/5

18:25-18:40

1 stop32h 15m

London Heathrow

Wed 28/5

21:20-20:45

1 stop15h 25m

£384

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 23/5

14:55-20:15

1 stop37h 20m

London Heathrow

Sat 31/5

22:00-12:55

1 stop30h 55m

£385

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 15/5

15:15-19:00

1 stop35h 45m

London Heathrow

Tue 17/6

21:00-22:10

1 stop17h 10m

£386

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 24/5

10:05-07:55

1 stop29h 50m

London Heathrow

Wed 28/5

19:15-08:25

2 stops53h 10m

£399

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 12/5

12:55-18:40

1 stop37h 45m

London Heathrow

Mon 26/5

22:00-21:30

2 stops39h 30m

£406

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 12/5

14:25-17:45

1 stop35h 20m

London Heathrow

Tue 27/5

20:25-13:05

1 stop32h 40m

£425

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 20/5

12:00-18:40

1 stop38h 40m

London Heathrow

Tue 9/9

21:00-12:25

1 stop31h 25m

£446

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 14/5

00:10-16:35

1 stop24h 25m

London Heathrow

Mon 19/5

21:35-07:10

1 stop25h 35m

£458

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 32 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 return 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 return flight from Seoul to Heathrow. Price data was last updated on 18 April 2025.

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to London Heathrow Airport. 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 Seoul to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £112). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £164). 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 23 April 2025.

A simple way to save on the total cost of your ticket is to fly from Seoul to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the afternoon.

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 23 April 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 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 23 April 2025.
Peruse reviews from past customers who have flown with EVA Air, Emirates and Thai Airways from Seoul to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,180 reviews
Check prices

Overall

8.4

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
EVA Air
8.4
Very Good
1,180 reviews
EVA Air
8.4
Very Good
1,180 reviews
Check prices

Overall

8.4

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Emirates
8.0
Very Good
3,205 reviews
EVA Air
8.4
Very Good
1,180 reviews
Check prices

Overall

8.4

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Thai Airways
7.7
Good
325 reviews
EVA Air
8.4
Very Good
1,180 reviews
Check prices

Overall

8.4

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
Vietnam Airlines
7.6
Good
194 reviews
EVA Air
8.4
Very Good
1,180 reviews
Check prices

Overall

8.4

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend
SWISS
7.5
Good
1,582 reviews
EVA Air
8.4
Very Good
1,180 reviews
Check prices

Overall

8.4

Boarding

8.4

Food

8.1

Comfort

8.3

Entertainment

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gary,Apr 2025

DPS - TPE

The staff was excellent. Kind, courteous, and overall just hospitable. Definitely recommend

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?

    China Southern, at £361, was found to be the cheapest airline from Seoul to London Heathrow Airport.Alternate airlines flying return to your destination include China Eastern and Air China. These flights start at 46% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as £156. However, be on the lookout for offers from China Eastern and Air China, as they are both options that can get you from Seoul to London Heathrow Airport for a low price.

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

    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 Seoul to London Heathrow Airport on time: Korean Air (63%), Virgin Atlantic (62%), Asiana Airlines (56%).

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

    Looking at all options, your cheapest flight can be booked for £450. While the most popular route (Incheon Intl - London Heathrow) can be booked for £369 on average our data indicates £670 when flying from Seoul to London Heathrow Airport.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £112). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
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Northampton
Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
Maidstone
Winchester
Swindon
Folkestone
Dartford

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Seoul to Heathrow

Discover the top 4 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 858,174 searches. Data last updated 23 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£355Average£542FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
FinnairCheapest£563Average£674FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Asiana AirlinesCheapest£650Average£760FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£674Average£888FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Seoul to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seoul to Heathrow become cheaper?

Yes! Start tracking prices for Seoul to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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