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Cheap flights from South Korea to London Heathrow Airport from £146

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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
4 Jun — 11 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 5 May 2026.

Wed 10/614:30
ICN
-
LHR
1 stop36h 10m
China Eastern
Wed 17/621:20
LHR
-
ICN
1 stop32h 10m
China Eastern
Deal found 2/5£420
Thu 21/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Wed 27/521:20
LHR
-
ICN
1 stop33h 50m
China Eastern
Deal found 3/5£426
Wed 20/512:55
ICN
-
LHR
1 stop37h 45m
China Eastern
Wed 27/521:20
LHR
-
ICN
1 stop33h 50m
China Eastern
Deal found 30/4£427
Tue 12/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Mon 25/521:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 5/5£429
Tue 19/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Tue 26/521:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 4/5£429
Tue 12/516:20
ICN
-
LHR
1 stop34h 20m
China Eastern
Tue 19/521:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 2/5£430
Wed 20/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Wed 3/621:20
LHR
-
ICN
1 stop34h 00m
China Eastern
Deal found 2/5£431
Mon 18/512:55
ICN
-
LHR
1 stop37h 45m
China Eastern
Wed 27/521:20
LHR
-
ICN
1 stop33h 50m
China Eastern
Deal found 1/5£432
Tue 12/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Sat 16/521:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 30/4£434
Mon 8/612:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Sun 14/621:20
LHR
-
PUS
1 stop35h 30m
China Eastern
Deal found 3/5£499
Tue 16/617:50
PUS
-
LHR
1 stop32h 50m
China Eastern
Tue 23/621:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Deal found 2/5£541
Wed 21/1012:45
PUS
-
LHR
1 stop36h 55m
Air China
Tue 27/1020:25
LHR
-
PUS
1 stop30h 20m
Air China
Deal found 4/5£548

Find 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 5 May 2026.

Round-trip from

£420

One-way from

£146

Popular in

October

Cheapest in

January

Average price

£605

Good round-trip deal

£679 or less

Good one-way deal

£435 or less
China Eastern
  • China Eastern
  • 10/6-17/6
  • 2 total stops
  • 68h 20m total
  • South Korea to London
Search Deals
China Eastern
  • China Eastern
  • 4/6
  • 1 total stop
  • 37h 45m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 5 May 2026.
Use the filters below to find and compare flights from South Korea to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Wed 20/5

13:40-18:40

1 stop37h 00m

London Heathrow

Tue 26/5

21:20-18:10

1 stop36h 50m

£568

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 19/6

17:45-07:00

1 stop21h 15m

London Heathrow

Wed 24/6

20:50-10:50

1 stop30h 00m

£589

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 18/5

17:50-12:45

1 stop26h 55m

London Heathrow

Mon 1/6

21:45-10:50

1 stop29h 05m

£590

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Tue 16/6

13:40-18:40

1 stop37h 00m

London Heathrow

Tue 23/6

21:20-12:30

1 stop31h 10m

£615

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Wed 20/5

19:10-18:40

1 stop31h 30m

London Heathrow

Mon 25/5

22:00-14:25

2 stops32h 25m

£648
Fastest return journey

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 13/6

23:55-12:25

1 stop20h 30m

London Heathrow

Tue 18/8

16:50-18:40

1 stop17h 50m

£656

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 2/7

01:20-13:15

1 stop19h 55m

London Heathrow

Tue 14/7

18:55-17:05

1 stop38h 10m

£685

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 28/6

01:20-06:30

1 stop37h 10m

London Heathrow

Tue 14/7

18:55-17:05

1 stop38h 10m

£687

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Wed 20/5

13:50-18:40

2 stops36h 50m

London Heathrow

Tue 26/5

21:20-22:30

1 stop17h 10m

£704

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Thu 18/6

19:10-18:40

1 stop31h 30m

London Heathrow

Thu 25/6

21:20-12:30

1 stop31h 10m

£709

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

How far ahead should I book a flight from South Korea to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from South Korea to London Heathrow Airport, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £313). Flying from South Korea to London Heathrow Airport in August is currently the most expensive (average of £449). 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 5 May 2026.

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 5 May 2026.

The most flights from KR0 to LHR are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

How often are flights from South Korea to London delayed?

About 30% of weekly flights between South Korea and London have experienced delays in the past year, with the average delay time being 93 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?

Thursday 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 22% 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 5 May 2026.
Get a feel of what it's like to fly with Korean Air,Asiana Airlines, andVirgin Atlantic 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
1,216 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Food

8.1

Overall

8.4

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!!
Korean Air
8.4
Very Good
1,216 reviews
Korean Air
8.4
Very Good
1,216 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Food

8.1

Overall

8.4

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!!
Asiana Airlines
8.1
Very Good
530 reviews
Korean Air
8.4
Very Good
1,216 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Food

8.1

Overall

8.4

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!!
Virgin Atlantic
7.4
Good
688 reviews
Korean Air
8.4
Very Good
1,216 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Food

8.1

Overall

8.4

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!!
Air China
7.3
Good
148 reviews
Korean Air
8.4
Very Good
1,216 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Food

8.1

Overall

8.4

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 20h 30m. Fly via China Eastern, Etihad Airways, or Emirates 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 cheapest airlines to fly from South Korea to London Heathrow Airport one-way?

    £118 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 £130 and £211, 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 Asiana Airlines (83%), Virgin Atlantic (81%) or Korean Air (72%) 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 £393. While the most popular route (Incheon Intl - London Heathrow) can be booked for £414 on average, our data indicates £1,117 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 £313). Flying from South Korea to London Heathrow Airport in August is currently the most expensive (average of £449). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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.

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 5 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£436Average£570FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£476Average£555FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£487Average£686FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Korean AirCheapest£611Average£813FlexibilityNo 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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