Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from South Korea to London Heathrow Airport from £135

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
17 Mar — 24 Mar1
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 15 February 2026.

Mon 30/312:20
ICN
-
LHR
Nonstop14h 30m
Virgin Atlantic
Sun 12/413:25
LHR
-
ICN
Nonstop13h 05m
Virgin Atlantic
Deal found 14/2£329
Fri 13/308:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Mon 16/321:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Deal found 14/2£342
Thu 12/316:20
ICN
-
LHR
1 stop34h 10m
China Eastern
Tue 17/321:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Deal found 12/2£343
Fri 6/308:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Mon 16/321:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Deal found 14/2£345
Wed 13/515:15
ICN
-
LHR
1 stop35h 45m
China Southern
Sun 17/522:10
LHR
-
ICN
1 stop33h 15m
China Southern
Deal found 13/2£346
Mon 9/310:55
ICN
-
LHR
1 stop40h 40m
China Southern
Sun 15/321:30
LHR
-
ICN
1 stop15h 45m
China Southern
Deal found 12/2£348
Wed 11/316:15
ICN
-
LHR
1 stop35h 20m
China Southern
Sun 15/321:30
LHR
-
ICN
1 stop15h 45m
China Southern
Deal found 11/2£349
Tue 3/308:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Sun 8/321:00
LHR
-
ICN
1 stop33h 05m
China Eastern
Deal found 14/2£351
Sun 29/316:20
ICN
-
LHR
1 stop34h 20m
China Eastern
Sun 5/421:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 11/2£353
Mon 30/309:25
ICN
-
LHR
1 stop16h 40m
China Southern
Sun 12/422:10
LHR
-
ICN
1 stop31h 45m
China Southern
Deal found 14/2£354
Tue 10/308:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Tue 17/321:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Deal found 13/2£354
Tue 3/318:25
ICN
-
LHR
1 stop32h 05m
China Eastern
Mon 16/321:00
LHR
-
ICN
1 stop31h 30m
China Eastern
Deal found 11/2£356

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 15 February 2026.

Round-trip from

£329

One-way from

£135

Popular in

October

Cheapest in

June

Average price

£584

Good round-trip deal

£562 or less

Good one-way deal

£415 or less
Virgin Atlantic
  • Virgin Atlantic
  • 30/3-12/4
  • Nonstop
  • 27h 35m total
  • South Korea to London
Search Deals
China Eastern
  • China Eastern
  • 25/3
  • 1 total stop
  • 37h 55m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 15 February 2026.
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

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Sun 8/3

17:50-17:30

1 stop32h 40m

London Heathrow

Sun 15/3

21:00-11:35

1 stop29h 35m

£359

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Mon 9/3

12:35-17:30

1 stop37h 55m

London Heathrow

Sun 15/3

21:00-11:35

1 stop29h 35m

£359

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Fri 6/3

13:50-17:30

1 stop36h 40m

London Heathrow

Mon 9/3

21:00-12:50

1 stop30h 50m

£360

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 5/3

16:20-17:30

1 stop34h 10m

London Heathrow

Mon 9/3

21:00-15:20

1 stop33h 20m

£361

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 2/6

13:25-18:05

1 stop36h 40m

London Heathrow

Mon 15/6

21:00-12:25

1 stop31h 25m

£380

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Fri 13/3

12:35-17:30

1 stop37h 55m

London Heathrow

Tue 17/3

21:00-11:35

1 stop29h 35m

£400

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Sat 14/3

17:50-17:30

1 stop32h 40m

London Heathrow

Mon 16/3

21:00-11:35

1 stop29h 35m

£400

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Fri 6/3

15:35-19:10

1 stop36h 35m

London Heathrow

Mon 9/3

21:10-14:35

1 stop32h 25m

£414

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 29/3

13:25-18:05

1 stop36h 40m

London Heathrow

Sun 5/4

21:00-12:25

1 stop31h 25m

£416

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 17/5

15:15-19:50

1 stop36h 35m

London Heathrow

Wed 27/5

22:05-14:15

1 stop32h 10m

£432

Flights are sorted by cheapest return flights first.

Deals found on 10/2

Showing 1-10 of 60 results
1
2
3
...
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, March is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £351). Flying from South Korea to London Heathrow Airport in July is currently the most expensive (average of £548). 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 15 February 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 7 February 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 15 February 2026.

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 30% of weekly flights between South Korea and London have experienced delays in the past year, with the average delay time being 98 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 Wednesday 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 15 February 2026.
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
1,191 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

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
1,191 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

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
503 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

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
192 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

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
7.2
Good
139 reviews
Korean Air
8.4
Very Good
1,191 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Comfort

8.3

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 32h 40m. Fly via China Eastern, China Southern, or Shenzhen Airlines to get the fastest option. The distance between South Korea and London Heathrow Airport is about 5709 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 Southern. You may also be able to find cheap deals on China Eastern and Air China, with prices starting from £121 and £129, 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 Korean Air (77%), Virgin Atlantic (59%) or Asiana Airlines (33%) 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 £349. While the most popular route (Incheon Intl - London Heathrow) can be booked for £354 on average, our data indicates £765 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, March is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £351). Flying from South Korea to London Heathrow Airport in July is currently the most expensive (average of £548). 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
Croydon
Luton
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames
Ipswich
Swindon

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.

Alternative routes for South Korea to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Kuala Lumpur Intl to Heathrow flights
Suvarnabhumi to Heathrow flights
Hong Kong to Heathrow flights
New Delhi to Heathrow flights
Mumbai to Heathrow flights
Taiwan Taoyuan Intl to Heathrow flights
Suvarnabhumi to Gatwick flights
Incheon Intl to Heathrow flights
Haneda to Heathrow flights
Singapore to Heathrow flights
Kuala Lumpur Intl to Stansted flights
Kuala Lumpur Intl to Gatwick flights
Incheon Intl to Gatwick flights
Suvarnabhumi to Stansted flights
Hong Kong to Gatwick flights
Manila to Heathrow flights
Hong Kong to Stansted flights
Singapore to Gatwick flights
Incheon Intl to Stansted flights
Hong Kong to London City flights
New Delhi to Gatwick flights
New Delhi to Stansted flights
Bangalore to Heathrow flights
Kansai Intl to Heathrow flights
Incheon Intl to London City flights
Manila to Gatwick flights
Mumbai to Gatwick flights
Narita to Heathrow flights
Hongqiao Intl to Heathrow flights
Manila to Stansted flights
Mumbai to Stansted flights
Kansai Intl to Gatwick flights
Colombo to Heathrow flights
Lahore to Heathrow flights
Pu Dong to Heathrow flights
Islamabad to Heathrow flights
Kansai Intl to Stansted flights
Manila to London City flights
Hyderabad to Heathrow flights
Hongqiao Intl to Gatwick flights
Pu Dong to Gatwick flights
Islamabad to Gatwick flights
Narita to Gatwick flights
Haneda to Gatwick flights
Chennai to Heathrow flights
Taiwan Taoyuan Intl to Gatwick flights
Singapore to Stansted flights

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 15 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£432Average£566FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£463Average£675FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£475Average£551FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£710Average£807FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.