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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
11 May — 18 May1
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 11 April 2026.

Fri 19/615:15
ICN
-
LHR
1 stop36h 35m
Shenzhen Airlines
Wed 24/622:05
LHR
-
ICN
1 stop34h 40m
Shenzhen Airlines
Deal found 7/4£420
Tue 2/616:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Wed 17/621:20
LHR
-
ICN
1 stop32h 10m
China Eastern
Deal found 6/4£432
Mon 11/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Mon 18/521:20
LHR
-
ICN
1 stop34h 00m
China Eastern
Deal found 9/4£434
Tue 12/512:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Wed 13/521:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Deal found 8/4£460
Mon 2/1111:05
ICN
-
LHR
1 stop37h 20m
Malaysia Airlines
Thu 12/1110:25
LHR
-
ICN
1 stop25h 30m
Malaysia Airlines
Deal found 8/4£499
Wed 20/501:35
ICN
-
LHR
1 stop19h 10m
Etihad Airways
Thu 28/509:30
LHR
-
ICN
1 stop17h 20m
Etihad Airways
Deal found 6/4£501
Fri 1/517:50
ICN
-
LHR
1 stop32h 55m
Etihad Airways
Sun 31/521:45
LHR
-
ICN
1 stop16h 20m
Etihad Airways
Deal found 7/4£501
Mon 18/517:50
ICN
-
LHR
1 stop21h 10m
Etihad Airways
Sat 23/509:30
LHR
-
ICN
1 stop28h 30m
Etihad Airways
Deal found 7/4£503
Mon 22/601:35
ICN
-
LHR
1 stop37h 25m
Etihad Airways
Sat 27/621:45
LHR
-
ICN
1 stop29h 05m
Etihad Airways
Deal found 6/4£504
Sat 7/1114:25
GMP
-
LHR
1 stop36h 25m
Air China
Sat 14/1120:25
LHR
-
GMP
1 stop31h 40m
Air China
Deal found 10/4£545
Sun 25/1012:45
PUS
-
LHR
1 stop36h 10m
Air China
Mon 2/1120:25
LHR
-
PUS
1 stop30h 20m
Air China
Deal found 6/4£547
Mon 23/1112:45
PUS
-
LHR
1 stop36h 10m
Air China
Fri 27/1120:25
LHR
-
PUS
1 stop30h 20m
Air China
Deal found 6/4£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 11 April 2026.

Round-trip from

£420

One-way from

£146

Popular in

October

Cheapest in

January

Average price

£573

Good round-trip deal

£559 or less

Good one-way deal

£295 or less
Shenzhen Airlines
  • Shenzhen Airlines
  • 19/6-24/6
  • 2 total stops
  • 71h 15m total
  • South Korea to London
China Eastern
  • China Eastern
  • 7/5
  • 1 total stop
  • 37h 45m total
  • South Korea to London
Highest demand for flights based on searches. 11% potential increase in price (£59 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Average for round-trip flights in April 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 11 April 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

Thu 7/5

17:50-15:05

1 stop29h 15m

London Heathrow

Thu 14/5

14:45-22:00

1 stop23h 15m

£549

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 22/7

01:35-18:45

1 stop25h 10m

London Heathrow

Thu 10/9

21:45-22:05

1 stop16h 20m

£553

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 20/6

17:45-15:05

1 stop29h 20m

London Heathrow

Tue 23/6

09:30-10:50

1 stop17h 20m

£566

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 13/5

23:35-16:25

2 stops24h 50m

London Heathrow

Mon 18/5

19:30-18:35

1 stop15h 05m

£666

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 6/5

23:45-18:15

2 stops26h 30m

London Heathrow

Fri 8/5

09:30-17:30

1 stop24h 00m

£682

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Tue 12/5

13:40-18:40

1 stop37h 00m

London Heathrow

Mon 18/5

22:05-12:55

1 stop30h 50m

£734

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 4/6

23:45-18:00

1 stop26h 15m

London Heathrow

Fri 19/6

12:00-17:05

2 stops21h 05m

£751

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 21/8

18:30-08:00

1 stop21h 30m

London Heathrow

Fri 28/8

12:00-17:05

2 stops21h 05m

£751

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 7/5

23:45-14:00

1 stop22h 15m

London Heathrow

Thu 14/5

09:50-17:30

2 stops23h 40m

£752

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 6/5

23:45-18:55

2 stops27h 10m

London Heathrow

Wed 13/5

15:30-17:30

1 stop18h 00m

£755

Flights are sorted by cheapest return flights first.

Deals found on 8/4

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, February is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £341). Flying from South Korea to London Heathrow Airport in September is currently the most expensive (average of £528). 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 11 April 2026.

It’s typically best to fly out from South Korea to London Heathrow Airport in the afternoon. Doing so could potentially save you 35% on the flight price compared to flying at midday, 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 4 April 2026.

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 11 April 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 31% 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 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 11 April 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.

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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!!

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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!!

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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!!

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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!!

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

Entertainment

8.2

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 24h 50m. Fly via Etihad Airways, Scandinavian Airlines, or Qatar Airways 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?

    £119 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 Virgin Atlantic, with prices starting from £131 and £135, 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 (90%), Korean Air (88%) or Asiana Airlines (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 £184. While the most popular route (Incheon Intl - London Heathrow) can be booked for £527 on average, our data indicates £738 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, February is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £341). Flying from South Korea to London Heathrow Airport in September is currently the most expensive (average of £528). 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
Gatwick
Luton
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Chelmsford
Ipswich
Southend-on-Sea

Browse thousands of different options on Cheapflights for your next trip

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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 11 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£439Average£575FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£480Average£559FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£491Average£692FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Korean AirCheapest£616Average£819FlexibilityNo 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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