Cheap flights from South Korea to London Heathrow Airport from £141

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
18 Jun — 25 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 19 May 2026.

Thu 11/616:20
ICN
-
LHR
1 stop34h 20m
China Eastern
Sun 14/621:20
LHR
-
ICN
1 stop30h 35m
China Eastern
Deal found 16/5£431
Fri 12/616:20
ICN
-
LHR
1 stop34h 20m
China Eastern
Sun 14/621:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 15/5£437
Fri 12/616:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Fri 19/621:20
LHR
-
ICN
1 stop32h 10m
China Eastern
Deal found 15/5£450
Wed 17/608:55
ICN
-
LHR
1 stop17h 45m
China Eastern
Tue 23/621:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 18/5£452
Sun 14/616:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Sun 21/621:20
LHR
-
ICN
1 stop33h 50m
China Eastern
Deal found 18/5£454
Tue 9/616:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Thu 25/621:20
LHR
-
ICN
1 stop34h 00m
China Eastern
Deal found 17/5£454
Fri 5/612:55
ICN
-
LHR
1 stop37h 45m
China Eastern
Fri 12/621:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 14/5£457
Tue 16/608:55
ICN
-
LHR
1 stop17h 45m
China Eastern
Tue 23/621:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 18/5£462
Fri 5/612:20
ICN
-
LHR
2 stops28h 50m
Multiple Airlines
Tue 16/620:50
LHR
-
ICN
2 stops29h 05m
Multiple Airlines
Deal found 16/5£485
Sun 25/1016:20
ICN
-
LHR
1 stop34h 10m
China Eastern
Sat 7/1121:00
LHR
-
ICN
1 stop33h 05m
China Eastern
Deal found 15/5£498
Thu 24/1213:05
ICN
-
LHR
1 stop16h 45m
Lufthansa
Fri 1/108:45
LHR
-
ICN
1 stop17h 30m
Lufthansa
Deal found 17/5£511
Tue 30/615:00
CJU
-
LHR
1 stop37h 00m
Shenzhen Airlines
Wed 29/722:05
LHR
-
CJU
1 stop30h 50m
Shenzhen Airlines
Deal found 17/5£545

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 19 May 2026.

Round-trip from

£431

One-way from

£141

Popular in

October

Cheapest in

December

Average price

£613

Good round-trip deal

£700 or less

Good one-way deal

£449 or less
China Eastern
  • China Eastern
  • 11/6-14/6
  • 2 total stops
  • 64h 55m total
  • South Korea to London
China Eastern
  • China Eastern
  • 15/6
  • 1 total stop
  • 31h 30m total
  • South Korea to London
Highest demand for flights based on searches. 11% potential increase in price (£61 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in May 2026
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.

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 19 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

Tue 30/6

15:00-20:00

1 stop37h 00m

London Heathrow

Wed 29/7

22:05-12:55

1 stop30h 50m

£545

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 19/6

16:15-18:40

1 stop34h 25m

London Heathrow

Wed 24/6

21:20-13:30

1 stop32h 10m

£585

DaeguLondon

TAE - LHR

TAELHR

Daegu

Thu 11/6

17:10-18:40

1 stop33h 30m

London Heathrow

Mon 15/6

21:20-11:00

1 stop29h 40m

£622

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 5/10

21:50-20:40

1 stop30h 50m

London Heathrow

Mon 26/10

16:15-12:25

1 stop35h 10m

£641

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 1/6

23:45-08:00

1 stop40h 15m

London Heathrow

Fri 5/6

08:25-17:30

1 stop25h 05m

£681

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Thu 11/6

13:40-18:40

1 stop37h 00m

London Heathrow

Mon 15/6

21:20-12:30

1 stop31h 10m

£712

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 1/6

22:45-20:15

1 stop29h 30m

London Heathrow

Tue 30/6

16:50-18:40

1 stop17h 50m

£723

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Tue 16/6

17:50-18:40

1 stop32h 50m

London Heathrow

Tue 23/6

21:20-11:35

1 stop30h 15m

£736

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 3/9

23:35-16:25

2 stops24h 50m

London Heathrow

Tue 8/9

10:20-18:35

1 stop24h 15m

£738

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 23/9

01:20-14:05

1 stop20h 45m

London Heathrow

Sat 3/10

16:00-17:05

1 stop17h 05m

£739

Flights are sorted by cheapest return flights first.

Deals found on 16/5

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 £317). Flying from South Korea to London Heathrow Airport in September is currently the most expensive (average of £502). 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 19 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 19 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 29% 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 Friday 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 19 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.

Overall

8.4

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

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!!

Overall

8.4

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

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 30h 50m. Fly via Shenzhen Airlines, China Eastern, or Finnair 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?

    £120 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 £214, 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 Asiana Airlines (89%), Virgin Atlantic (81%) or Korean Air (69%) 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 £399. While the most popular route (Incheon Intl - London Heathrow) can be booked for £443 on average, our data indicates £705 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 £317). Flying from South Korea to London Heathrow Airport in September is currently the most expensive (average of £502). 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
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Ilford
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 19 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£441Average£578FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£482Average£554FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£494Average£696FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Korean AirCheapest£619Average£824FlexibilityNo 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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