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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
26 Dec — 2 Jan1
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 26 November 2025.

Sun 14/1213:50CJU - LHR
1 stop36h 40mChina Eastern
Tue 23/1221:00LHR - CJU
1 stop35h 55mChina Eastern
Deal found 23/11£356
Wed 26/1117:50PUS - LHR
1 stop32h 40mChina Eastern
Fri 28/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 24/11£395
Tue 23/1217:50PUS - LHR
1 stop32h 40mChina Eastern
Thu 1/121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 24/11£422
Thu 27/1117:50PUS - LHR
1 stop32h 40mChina Eastern
Tue 2/1221:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 25/11£424
Thu 4/1213:10ICN - LHR
1 stop35h 45mAir China
Thu 18/1221:35LHR - ICN
1 stop30h 20mAir China
Deal found 26/11£427
Fri 12/1211:10ICN - LHR
1 stop15h 40mAir China
Thu 18/1221:35LHR - ICN
1 stop30h 20mAir China
Deal found 25/11£428
Thu 18/1218:25ICN - LHR
1 stop32h 05mChina Eastern
Wed 7/121:00LHR - ICN
1 stop14h 45mChina Eastern
Deal found 25/11£429
Tue 23/1213:50CJU - LHR
1 stop36h 40mChina Eastern
Fri 26/1221:00LHR - CJU
1 stop35h 55mChina Eastern
Deal found 24/11£429
Wed 24/1211:10ICN - LHR
1 stop15h 40mAir China
Sat 3/121:35LHR - ICN
1 stop30h 20mAir China
Deal found 24/11£431
Sun 14/1214:50ICN - LHR
1 stop36h 00mAir China
Tue 16/1222:10LHR - ICN
1 stop29h 45mAir China
Deal found 24/11£431
Sun 7/1213:05ICN - LHR
2 stops28h 00mLufthansa
Thu 11/1207:30LHR - ICN
1 stop18h 20mLufthansa
Deal found 24/11£433
Sun 21/1214:50ICN - LHR
1 stop34h 05mAir China
Mon 5/120:25LHR - ICN
1 stop30h 15mAir China
Deal found 25/11£434

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 26 November 2025.

Round-trip from

£356

One-way from

£122

Popular in

October

Cheapest in

March

Average price

£521

Good round-trip deal

£553 or less

Good one-way deal

£335 or less
China Eastern
  • China Eastern
  • 14/12-23/12
  • 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 (£54 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 26 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

Sun 14/12

13:50-17:30

1 stop36h 40m

London Heathrow

Tue 23/12

21:00-17:55

1 stop35h 55m

£356

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 2/3

14:25-17:50

1 stop36h 25m

London Heathrow

Wed 11/3

20:25-13:05

1 stop31h 40m

£418

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Fri 23/1

17:50-17:30

1 stop32h 40m

London Heathrow

Tue 27/1

21:00-11:35

1 stop29h 35m

£421

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Fri 23/1

17:50-17:30

1 stop32h 40m

London Heathrow

Sat 31/1

21:00-11:35

1 stop29h 35m

£421

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Tue 23/12

17:50-17:30

1 stop32h 40m

London Heathrow

Thu 1/1

21:00-11:35

1 stop29h 35m

£422

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 17/3

14:25-17:50

1 stop36h 25m

London Heathrow

Sat 21/3

20:25-13:05

1 stop31h 40m

£425

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Tue 23/12

13:50-17:30

1 stop36h 40m

London Heathrow

Fri 26/12

21:00-17:55

1 stop35h 55m

£429

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 23/2

23:45-16:00

1 stop25h 15m

London Heathrow

Mon 2/3

19:50-19:00

2 stops38h 10m

£431

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 16/2

23:45-17:40

1 stop26h 55m

London Heathrow

Mon 23/2

19:50-19:00

2 stops38h 10m

£431

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 29/1

13:05-08:05

2 stops28h 00m

London Heathrow

Wed 4/2

07:30-10:50

1 stop18h 20m

£434

Flights are sorted by cheapest return flights first.

Deals found on 24/11

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 £358). Flying from South Korea to London Heathrow Airport in July is currently the most expensive (average of £575). 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 26 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 51% 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 26 November 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).

How often are flights from South Korea to London delayed?

About 29% of weekly flights between South Korea and London have experienced delays in the past year, with the average delay time being 104 minutes.

What is the most punctual flight time for South Korea to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on South Korea to London flights?

Over the past year, Korean Air have had the lowest number of delays on this route, with just 21% of flights being delayed.

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 26 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
1,170 reviews
Check prices

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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
1,170 reviews
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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
490 reviews
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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
178 reviews
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Overall

8.4

Entertainment

8.2

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 25h 15m. Fly via China Eastern, Air China, or Scandinavian Airlines to get the fastest option. The distance between South Korea and London Heathrow Airport is about 5503 mi. This flight may include one or multiple stops.

  • 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 (51%), Korean Air (50%) or Asiana Airlines (34%) 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 £287. While the most popular route (Incheon Intl - London Heathrow) can be booked for £355 on average, our data indicates £752 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 £358). Flying from South Korea to London Heathrow Airport in July is currently the most expensive (average of £575). 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
Slough
Croydon
Hounslow
Northampton
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Swindon
Crawley
Romford
Chichester
Bedford

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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 26 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£361Average£690FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£514Average£750FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£737Average£838FlexibilityNo 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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