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Cheap flights from South Korea to London Heathrow Airport from £231

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 13/10. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
19 Jul — 26 Jul1
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 June 2026.

Sat 20/617:50
PUS
-
LHR
1 stop32h 50m
China Eastern
Tue 23/621:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Deal found 18/6£416
Mon 29/612:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Thu 2/721:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Deal found 15/6£443
Sun 28/617:10
TAE
-
LHR
1 stop33h 30m
China Eastern
Thu 2/721:20
LHR
-
TAE
1 stop34h 50m
China Eastern
Deal found 18/6£451
Sat 27/617:50
PUS
-
LHR
1 stop32h 50m
China Eastern
Fri 3/721:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Deal found 17/6£459
Tue 30/617:10
TAE
-
LHR
1 stop33h 30m
China Eastern
Thu 9/721:20
LHR
-
TAE
1 stop29h 40m
China Eastern
Deal found 17/6£462
Wed 4/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Sat 14/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Deal found 17/6£489
Tue 1/1214:25
GMP
-
LHR
1 stop34h 30m
Air China
Wed 2/1220:25
LHR
-
GMP
1 stop31h 40m
Air China
Deal found 18/6£527
Mon 22/617:50
PUS
-
LHR
1 stop32h 50m
Multiple Airlines
Mon 29/621:20
LHR
-
PUS
1 stop30h 15m
Multiple Airlines
Deal found 15/6£530
Wed 25/1114:25
GMP
-
LHR
1 stop34h 30m
Air China
Wed 2/1220:25
LHR
-
GMP
1 stop31h 40m
Air China
Deal found 19/6£535
Mon 9/1114:25
GMP
-
LHR
1 stop34h 30m
Air China
Fri 4/1220:25
LHR
-
GMP
1 stop31h 40m
Air China
Deal found 17/6£539
Wed 11/1114:25
GMP
-
LHR
1 stop36h 25m
Air China
Sun 15/1120:25
LHR
-
GMP
1 stop31h 40m
Air China
Deal found 18/6£544
Thu 23/717:50
PUS
-
LHR
1 stop32h 50m
China Eastern
Sun 26/721:20
LHR
-
PUS
1 stop35h 30m
China Eastern
Deal found 17/6£546

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 June 2026.

Round-trip from

£443

One-way from

£231

Popular in

October

Cheapest in

December

Average price

£619

Good round-trip deal

£710 or less

Good one-way deal

£460 or less
China Eastern
  • China Eastern
  • 29/6-2/7
  • 2 total stops
  • 68h 20m total
  • South Korea to London
Search Deals
Air China
  • Air China
  • 13/10
  • 1 total stop
  • 36h 35m 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 June 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 19 June 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

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 1/7

11:40-20:45

1 stop17h 05m

London Heathrow

Wed 8/7

08:30-09:55

1 stop17h 25m

£567

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 13/7

09:30-19:20

1 stop17h 50m

London Heathrow

Wed 15/7

07:25-09:55

1 stop18h 30m

£569

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 10/11

12:55-08:05

2 stops28h 10m

London Heathrow

Mon 16/11

07:40-11:00

2 stops18h 20m

£614

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 30/11

12:55-08:05

2 stops28h 10m

London Heathrow

Sat 5/12

07:30-11:00

1 stop18h 30m

£646

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Sat 11/7

15:00-20:00

1 stop37h 00m

London Heathrow

Sat 8/8

22:05-13:55

1 stop31h 50m

£665

DaeguLondon

TAE - LHR

TAELHR

Daegu

Thu 2/7

17:10-18:40

1 stop33h 30m

London Heathrow

Wed 12/8

21:20-16:10

1 stop34h 50m

£670

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 30/6

12:20-08:15

2 stops27h 55m

London Heathrow

Tue 14/7

08:30-09:55

1 stop17h 25m

£684

DaeguLondon

TAE - LHR

TAELHR

Daegu

Tue 30/6

17:10-18:40

1 stop33h 30m

London Heathrow

Tue 11/8

21:20-16:10

1 stop34h 50m

£694

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 13/7

09:30-17:50

1 stop16h 20m

London Heathrow

Mon 20/7

19:15-07:40

2 stops28h 25m

£716

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 4/8

18:20-07:00

1 stop20h 40m

London Heathrow

Wed 12/8

21:45-10:50

1 stop29h 05m

£733

Flights are sorted by cheapest return flights first.

Deals found on 14/6

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

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 £320). Flying from South Korea to London Heathrow Airport in September is currently the most expensive (average of £493). 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 June 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 June 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 27% of weekly flights between South Korea and London have experienced delays in the past year, with the average delay time being 95 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 21% of flights being delayed.

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.

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 June 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
1,218 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

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
1,218 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

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
544 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

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
7.5
Good
690 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

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
155 reviews
Korean Air
8.4
Very Good
1,218 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

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 17h 05m. Fly via China Eastern, Air France, or Lufthansa 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?

    £121 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 £133 and £255, 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 (75%), Virgin Atlantic (73%) or Korean Air (67%) 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 £329. While the most popular route (Incheon Intl - London Heathrow) can be booked for £435 on average, our data indicates £641 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 £320). Flying from South Korea to London Heathrow Airport in September is currently the most expensive (average of £493). 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Guildford
Romford
Ipswich

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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£470Average£583FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£487Average£560FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£498Average£710FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Korean AirCheapest£625Average£831FlexibilityNo 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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