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Cheap flights from South Korea to London Heathrow Airport from £122

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from South Korea to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from South Korea to Heathrow
Explore the most affordable flight options available from South Korea to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 November 2025.

Thu 27/1113:50CJU - LHR
1 stop36h 40mChina Eastern
Sun 30/1121:00LHR - CJU
1 stop35h 55mChina Eastern
Deal found 9/11£394
Tue 25/1117:50PUS - LHR
1 stop32h 40mChina Eastern
Fri 28/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 9/11£394
Wed 26/1117:50PUS - LHR
1 stop32h 40mChina Eastern
Sat 29/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 9/11£399
Thu 4/1217:50PUS - LHR
1 stop32h 40mChina Eastern
Sun 7/1221:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 9/11£411
Tue 23/1214:25GMP - LHR
1 stop36h 25mAir China
Fri 16/117:40LHR - GMP
1 stop34h 25mAir China
Deal found 9/11£416
Tue 23/1218:55CJU - LHR
1 stop31h 35mChina Eastern
Wed 31/1221:00LHR - CJU
1 stop30h 50mChina Eastern
Deal found 9/11£422
Mon 24/1114:25GMP - LHR
1 stop34h 30mAir China
Tue 2/1220:25LHR - GMP
1 stop31h 40mAir China
Deal found 8/11£422
Wed 24/1217:50PUS - LHR
1 stop32h 40mChina Eastern
Wed 31/1221:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 9/11£425
Wed 24/1214:50ICN - LHR
1 stop34h 05mAir China
Sun 28/1220:25LHR - ICN
1 stop16h 30mAir China
Deal found 11/11£431
Thu 27/1113:10ICN - LHR
1 stop35h 45mMultiple Airlines
Wed 3/1221:30LHR - ICN
1 stop15h 45mMultiple Airlines
Deal found 10/11£434
Fri 28/1118:25ICN - LHR
1 stop32h 05mChina Eastern
Sun 7/1221:00LHR - ICN
1 stop29h 55mChina Eastern
Deal found 10/11£437
Mon 1/1208:55ICN - LHR
1 stop17h 35mChina Eastern
Fri 5/1221:00LHR - ICN
1 stop14h 45mChina Eastern
Deal found 9/11£437

Cheap flight deals from South Korea to Heathrow

Keep the following information in mind while searching for South Korea to Heathrow flight deals. Data was last updated 11 November 2025.

Round-trip from

£394

One-way from

£122

Popular in

October

Cheapest in

March

Average price

£526

Good round-trip deal

£531 or less

Good one-way deal

£287 or less
China Eastern
  • China Eastern
  • 27/11-30/11
  • 2 total stops
  • 72h 35m total
  • South Korea to London
Search Deals
China Eastern
  • China Eastern
  • 14/12
  • 1 total stop
  • 36h 40m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from South Korea to London Heathrow.
Search Deals
Price to beat on a one-way flight from South Korea to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from South Korea 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 11 November 2025.
Use the filters below to find and compare flights from South Korea to London Heathrow Airport that are best for you.

Fly from

South Korea

Fly to

Heathrow

Route

Depart

Return

Price

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Thu 27/11

13:50-17:30

1 stop36h 40m

London Heathrow

Sun 30/11

21:00-17:55

1 stop35h 55m

£394

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 2/3

14:25-17:50

1 stop36h 25m

London Heathrow

Wed 11/3

17:40-13:05

1 stop34h 25m

£419

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Wed 24/12

13:50-17:30

1 stop36h 40m

London Heathrow

Wed 31/12

21:00-14:50

1 stop32h 50m

£422

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Tue 23/12

18:55-17:30

1 stop31h 35m

London Heathrow

Wed 31/12

21:00-12:50

1 stop30h 50m

£422

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Wed 24/12

17:50-17:30

1 stop32h 40m

London Heathrow

Wed 31/12

21:00-11:35

1 stop29h 35m

£425

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Sun 21/12

17:50-17:30

1 stop32h 40m

London Heathrow

Wed 31/12

21:00-11:35

1 stop29h 35m

£445

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 17/12

14:25-17:50

1 stop36h 25m

London Heathrow

Mon 5/1

20:25-13:05

1 stop31h 40m

£447

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 21/1

14:25-17:50

1 stop36h 25m

London Heathrow

Fri 23/1

21:30-12:25

1 stop29h 55m

£451

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Mon 2/3

12:45-15:55

1 stop36h 10m

London Heathrow

Sat 7/3

20:25-11:45

1 stop30h 20m

£454

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Sun 21/12

17:50-17:30

1 stop32h 40m

London Heathrow

Wed 31/12

21:30-08:10

2 stops25h 40m

£457

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 60 results
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Best time to book a flight from South Korea to Heathrow

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

What is the cheapest month to book a flight from South Korea to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £355). Flying from South Korea to London Heathrow Airport in July is currently the most expensive (average of £578). 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 KR to LHR?

Find hourly flight availability from South Korea 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 11 November 2025.

It’s typically best to fly out from South Korea to London Heathrow Airport in the afternoon. Doing so could potentially save you 49% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from South Korea to London Heathrow Airport?

Use this chart to determine the cheapest time to fly return from South Korea to Heathrow. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their South Korea to London Heathrow Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from South Korea to London Heathrow Airport

Explore weekly flight availability from South Korea 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 11 November 2025.

The most flights from KR0 to LHR are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

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 11 November 2025.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, andChina Eastern from South Korea to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,162 reviews
Check prices

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,162 reviews
Korean Air
8.4
Very Good
1,162 reviews
Check prices

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.2
Very Good
485 reviews
Korean Air
8.4
Very Good
1,162 reviews
Check prices

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
China Eastern
7.2
Good
175 reviews
Korean Air
8.4
Very Good
1,162 reviews
Check prices

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Overall

8.4

Food

8.1

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from South Korea to Heathrow. 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 South Korea to London Heathrow Airport?

    There are many flights that can get you from South Korea to London Heathrow Airport in 36h 25m. Fly via China Eastern, Air China, or China Southern to get the fastest option. The distance between South Korea and London Heathrow Airport is about 5506 mi. This flight may include one or multiple stops.

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

    £122 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on Air China and China Southern, with prices starting from £178 and £199, respectively.

  • What are the most popular routes from South Korea to London Heathrow Airport?

    When deciding which route to take from South Korea to London Heathrow Airport consider Incheon Intl - London Heathrow, Seoul Gimpo Intl - London Heathrow or Busan Gimhae - London Heathrow as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from South Korea to London Heathrow Airport consider choosing Virgin Atlantic (41%), Korean Air (32%) or Asiana Airlines (18%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for £286. While the most popular route (Incheon Intl - London Heathrow) can be booked for £381 on average, our data indicates £751 when flying from South Korea to London Heathrow Airport.

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

    Yes. In addition to deals on South Korea to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from South Korea to Heathrow?

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

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

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

    Currently, November is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £355). Flying from South Korea to London Heathrow Airport in July is currently the most expensive (average of £578). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from South Korea to Heathrow

Discover the top 3 airlines that operate flights from South Korea 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 11 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£361Average£689FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£513Average£748FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£736Average£837FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from South Korea to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from South Korea to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from South Korea to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from South Korea by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from South Korea to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from South Korea? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for South Korea 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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