Cheap flights from South Korea to London Heathrow Airport from £163

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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
12 10月 — 19 10月1
1 adult
1 adult, Economy

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 12 9月 2025.

Round-trip from

£418

One-way from

£163

Popular in

September

Cheapest in

November

Average price

£778

Good round-trip deal

£972 or less

Good one-way deal

£422 or less
China Eastern
  • China Eastern
  • 3/11-9/11
  • 2 total stops
  • 67h 30m total
  • South Korea to London
China Eastern
  • China Eastern
  • 26/11
  • 1 total stop
  • 32h 40m total
  • South Korea to London
Highest demand for flights based on searches. 17% potential increase in price (£92 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from South Korea to London Heathrow.
Price to beat on a one-way flight from South Korea to London Heathrow.

Find flight deals from South Korea to Heathrow

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 12 9月 2025.

週一 3/1112:35PUS - LHR
1 stop37h 55mChina Eastern
週日 9/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 10/9£418
週四 20/1113:50CJU - LHR
1 stop36h 40mChina Eastern
週一 24/1121:00LHR - CJU
1 stop30h 50mChina Eastern
Deal found 10/9£419
週三 15/1012:35PUS - LHR
1 stop38h 05mChina Eastern
週六 25/1021:20LHR - PUS
1 stop30h 15mChina Eastern
Deal found 11/9£419
週二 4/1118:55CJU - LHR
1 stop31h 35mChina Eastern
週五 7/1121:00LHR - CJU
1 stop30h 50mChina Eastern
Deal found 11/9£419
週二 11/1112:35PUS - LHR
1 stop37h 55mChina Eastern
週日 23/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 10/9£419
週四 20/1113:50CJU - LHR
1 stop36h 40mChina Eastern
週二 25/1121:00LHR - CJU
1 stop35h 55mChina Eastern
Deal found 10/9£421
週二 11/1112:35PUS - LHR
1 stop37h 55mChina Eastern
週一 17/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 10/9£421
週日 9/1117:50PUS - LHR
1 stop32h 40mChina Eastern
週二 18/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 11/9£422
週二 4/1118:55CJU - LHR
1 stop31h 35mChina Eastern
週六 8/1121:00LHR - CJU
1 stop30h 50mChina Eastern
Deal found 11/9£423
週二 11/1117:50PUS - LHR
1 stop32h 40mChina Eastern
週二 25/1121:00LHR - PUS
1 stop34h 50mChina Eastern
Deal found 11/9£423
週五 21/1117:50PUS - LHR
1 stop32h 40mChina Eastern
週日 30/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 10/9£425
週五 10/1017:50PUS - LHR
1 stop32h 50mChina Eastern
週一 13/1021:20LHR - PUS
1 stop35h 30mChina Eastern
Deal found 9/9£427

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 12 9月 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

週四 20/11

13:50-17:30

1 stop36h 40m

London Heathrow

週一 24/11

21:00-12:50

1 stop30h 50m

£419

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

週日 9/11

17:50-17:30

1 stop32h 40m

London Heathrow

週二 18/11

21:00-11:35

1 stop29h 35m

£422

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

週二 11/11

17:50-17:30

1 stop32h 40m

London Heathrow

週日 23/11

21:00-11:35

1 stop29h 35m

£422

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

週二 4/11

18:55-17:30

1 stop31h 35m

London Heathrow

週六 8/11

21:00-12:50

1 stop30h 50m

£423

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

週日 26/10

13:50-17:30

1 stop36h 40m

London Heathrow

週日 2/11

21:00-17:55

1 stop35h 55m

£453

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

週五 21/11

15:40-17:30

1 stop34h 50m

London Heathrow

週一 24/11

21:00-12:50

1 stop30h 50m

£464

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

週三 12/11

17:50-17:30

1 stop32h 40m

London Heathrow

週日 16/11

21:30-10:50

2 stops28h 20m

£479

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

週五 7/11

14:25-15:55

1 stop34h 30m

London Heathrow

週四 13/11

17:40-13:05

1 stop34h 25m

£499

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

週二 28/10

13:45-17:55

1 stop37h 10m

London Heathrow

週四 6/11

21:30-12:25

1 stop29h 55m

£502

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

週日 16/11

14:25-17:50

1 stop36h 25m

London Heathrow

週五 28/11

20:25-13:05

1 stop31h 40m

£511

Flights are sorted by cheapest return flights first.

Deals found on 11/9

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, January is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £112). Flying from South Korea 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 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 12 9月 2025.

When flying from South Korea to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 12 9月 2025.

The most flights from KR0 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).

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 12 9月 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.

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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!!

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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!!

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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!!

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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!!

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

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 34h 30m. 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?

    £163 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 Etihad Airways, with prices starting from £285 and £296, respectively.

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

  • 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 (82%), Korean Air (77%) or Asiana Airlines (55%) 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 £385. While the most popular route (Incheon Intl - London Heathrow) can be booked for £408 on average, our data indicates £916 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, January is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £112). Flying from South Korea 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 London Heathrow Airport?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for South Korea to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from South Korea to Heathrow

Discover the top 4 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 12 9月 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£351Average£681FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£399Average£649FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£641Average£740FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£665Average£839FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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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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