Cheap flights from South Korea to London Heathrow Airport from £205

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 19/10. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
1 Sep — 8 Sep1
1 adult

Cheap 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 27 August 2025.

Round-trip from

£442

One-way from

£205

Popular in

September

Cheapest in

December

Average price

£628

Good round-trip deal

£957 or less

Good one-way deal

£471 or less
China Eastern
  • China Eastern
  • 14/10-23/10
  • 2 total stops
  • 68h 20m total
  • South Korea to London
China Eastern
  • China Eastern
  • 19/10
  • 1 total stop
  • 38h 05m total
  • South Korea to London
Highest demand for flights based on searches. 17% potential increase in price (£91 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Average for round-trip flights in August 2025
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.

Find flight deals from South Korea to Heathrow

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 27 August 2025.

Tue 14/1012:35PUS - LHR
1 stop38h 05mChina Eastern
Thu 23/1021:20LHR - PUS
1 stop30h 15mChina Eastern
Deal found 25/8£442
Wed 22/1012:35PUS - LHR
1 stop38h 05mChina Eastern
Mon 27/1021:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 25/8£450
Tue 11/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Fri 14/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 25/8£451
Sun 19/1012:35PUS - LHR
1 stop38h 05mChina Eastern
Mon 27/1021:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 25/8£452
Fri 7/1113:45GMP - LHR
1 stop37h 10mChina Southern
Thu 13/1121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 26/8£499
Tue 9/912:35PUS - LHR
1 stop38h 05mChina Eastern
Tue 16/921:20LHR - PUS
1 stop30h 15mChina Eastern
Deal found 26/8£499
Mon 3/1113:45GMP - LHR
1 stop37h 10mChina Southern
Sun 9/1121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 26/8£501
Tue 11/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Mon 17/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 27/8£501
Tue 2/912:35PUS - LHR
1 stop38h 05mChina Eastern
Sun 7/921:20LHR - PUS
1 stop30h 15mChina Eastern
Deal found 27/8£502
Wed 3/913:30GMP - LHR
1 stop36h 35mChina Southern
Wed 1/1021:00LHR - GMP
1 stop31h 25mChina Southern
Deal found 25/8£502
Tue 25/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Sun 30/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 26/8£502
Tue 11/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Sun 16/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Deal found 26/8£503

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 27 August 2025.
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

Tue 14/10

12:35-18:40

1 stop38h 05m

London Heathrow

Thu 23/10

21:20-11:35

1 stop30h 15m

£442

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Wed 22/10

12:35-18:40

1 stop38h 05m

London Heathrow

Mon 27/10

21:00-11:35

1 stop29h 35m

£450

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Tue 11/11

12:35-17:30

1 stop37h 55m

London Heathrow

Fri 14/11

21:00-11:35

1 stop29h 35m

£451

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Sun 19/10

12:35-18:40

1 stop38h 05m

London Heathrow

Mon 27/10

21:00-11:35

1 stop29h 35m

£452

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Tue 9/9

12:35-18:40

1 stop38h 05m

London Heathrow

Tue 16/9

21:20-11:35

1 stop30h 15m

£499

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 3/11

13:45-17:55

1 stop37h 10m

London Heathrow

Mon 10/11

21:30-12:25

1 stop29h 55m

£501

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Tue 11/11

12:35-17:30

1 stop37h 55m

London Heathrow

Mon 17/11

21:00-11:35

1 stop29h 35m

£501

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sat 29/11

13:45-17:55

1 stop37h 10m

London Heathrow

Fri 5/12

21:00-11:00

1 stop29h 00m

£513

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/12

13:45-17:55

1 stop37h 10m

London Heathrow

Sun 4/1

21:30-12:25

1 stop29h 55m

£514

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 9/9

14:25-20:30

1 stop14h 05m

London Heathrow

Tue 16/9

21:20-11:00

1 stop29h 40m

£514

Flights are sorted by cheapest return flights first.

Deals found on 26/8

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, January is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £112). Flying from South Korea to London Heathrow Airport in August is currently the most expensive (average of £164). 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 27 August 2025.

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 27 August 2025.

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).

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 27 August 2025.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, andAir China 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.

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

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!!

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

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!!

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

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!!

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

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!!

Comfort

8.2

Crew

8.7

Overall

8.4

Entertainment

8.2

Boarding

8.5

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 28h 15m. Fly via China Eastern, China Southern, or Air China to get the fastest option. The distance between South Korea and London Heathrow Airport is about 5739 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?

    £205 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 Vietnam Airlines and China Southern, with prices starting from £208 and £235, 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 Korean Air (78%), Virgin Atlantic (73%) or Asiana Airlines (53%) 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 £424. While the most popular route (Incheon Intl - London Heathrow) can be booked for £347 on average our data indicates £913 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, January is the cheapest month in which you can book a flight from South Korea to London Heathrow Airport (average of £112). Flying from South Korea to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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 27 August 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£352Average£684FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£401Average£652FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£645Average£744FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£669Average£843FlexibilityNo 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.