Cheap flights from London Heathrow Airport to South Korea from £259

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ICN
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Heathrow to South Korea

Keep the following information in mind while searching for Heathrow to South Korea flight deals. Data was last updated 19 August 2025.

Round-trip from

£403

One-way from

£259

Popular in

July

Cheapest in

November

Average price

£796

Good round-trip deal

£846 or less

Good one-way deal

£577 or less
China Southern
  • China Southern
  • 18/9-18/12
  • 2 total stops
  • 68h 35m total
  • London to South Korea
China Eastern
  • China Eastern
  • 4/9
  • 1 total stop
  • 29h 40m total
  • London to South Korea
Highest demand for flights based on searches. 18% potential increase in price (£94 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from London Heathrow to South Korea.
Price to beat on a one-way flight from London Heathrow to South Korea.

Find flight deals from Heathrow to South Korea

Cheapest flights from Heathrow to South Korea
Explore the most affordable flight options available from Heathrow to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Fri 19/921:00LHR - GMP
1 stop31h 25mChina Southern
Mon 13/1013:30GMP - LHR
1 stop36h 35mChina Southern
Deal found 19/8£400
Sun 30/1117:40LHR - GMP
1 stop34h 25mAir China
Tue 23/1214:25GMP - LHR
1 stop34h 30mAir China
Deal found 19/8£400
Thu 18/921:00LHR - GMP
1 stop31h 25mChina Southern
Thu 18/1213:45GMP - LHR
1 stop37h 10mChina Southern
Deal found 19/8£403
Sun 26/1021:30LHR - GMP
1 stop29h 55mChina Southern
Wed 12/1113:45GMP - LHR
1 stop37h 10mChina Southern
Deal found 19/8£403
Wed 19/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Sat 29/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Deal found 19/8£407
Tue 23/921:20LHR - GMP
1 stop29h 40mMultiple Airlines
Sun 5/1020:50GMP - LHR
1 stop29h 50mMultiple Airlines
Deal found 19/8£410
Mon 27/1021:30LHR - GMP
1 stop29h 55mChina Southern
Tue 4/1113:45GMP - LHR
1 stop37h 10mChina Southern
Deal found 18/8£411
Tue 28/1021:30LHR - GMP
1 stop29h 55mChina Southern
Tue 4/1113:45GMP - LHR
1 stop37h 10mChina Southern
Deal found 18/8£412
Wed 3/921:00LHR - GMP
1 stop31h 25mChina Southern
Wed 10/913:30GMP - LHR
1 stop36h 35mChina Southern
Deal found 19/8£414
Wed 17/922:40LHR - GMP
1 stop30h 25mAir China
Mon 13/1014:25GMP - LHR
1 stop14h 05mAir China
Deal found 19/8£414
Tue 16/922:40LHR - GMP
1 stop30h 25mAir China
Tue 14/1014:25GMP - LHR
1 stop14h 05mAir China
Deal found 19/8£416
Sat 4/1021:00LHR - GMP
1 stop31h 25mChina Southern
Sat 11/1013:30GMP - LHR
1 stop36h 35mChina Southern
Deal found 17/8£420

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to South Korea 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 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to South Korea that are best for you.

Fly from

Heathrow

Fly to

South Korea

Route

Depart

Return

Price

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 26/10

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 12/11

13:45-17:55

1 stop37h 10m

£403

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 19/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Sat 29/11

12:35-17:30

1 stop37h 55m

£407

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 4/10

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sat 11/10

13:30-18:05

1 stop36h 35m

£420

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 11/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Sun 23/11

13:45-17:55

1 stop37h 10m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 14/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Fri 21/11

13:45-17:55

1 stop37h 10m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 13/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Thu 20/11

13:45-17:55

1 stop37h 10m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 3/12

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Thu 11/12

13:45-17:55

1 stop37h 10m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 8/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Sun 23/11

13:45-17:55

1 stop37h 10m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 9/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Sun 23/11

13:45-17:55

1 stop37h 10m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 13/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 19/11

13:45-17:55

1 stop37h 10m

£421

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 60 results
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Best time to book a flight from Heathrow to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from Heathrow 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 London Heathrow Airport to South Korea

What is the cheapest month to book a flight from London Heathrow Airport to South Korea?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to South Korea (average of £643). Flying from London Heathrow Airport to South Korea in July is currently the most expensive (average of £1,182). 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 LHR to KR?

Find hourly flight availability from Heathrow to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

When flying from London Heathrow Airport to South Korea, 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 London Heathrow Airport to South Korea

Explore weekly flight availability from Heathrow to South Korea. 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 August 2025.

The most flights from LHR to KR0 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 South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated 19 August 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to South Korea, such as Korean Air, Asiana Airlines, andChina Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to South Korea. 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 London Heathrow Airport to South Korea?

    A quick flight from London Heathrow Airport to South Korea can take about 29h 35m. China Southern provides one of the quickest options available for as low as £407. The distance between London Heathrow Airport and South Korea is about 5709 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to South Korea one-way?

    To fly one-way, consider booking your trip with China Eastern, which is currently one of the cheapest options available, starting at £259. China Southern flights start at £273 while deals on Hainan Airlines start at £292 one-way.

  • What are the most popular routes from London Heathrow Airport to South Korea?

  • What are the most reliable airlines from London Heathrow Airport to South Korea?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to South Korea on time: Korean Air (92%), Virgin Atlantic (92%), Asiana Airlines (90%).

  • What are the cheapest flights from London Heathrow Airport to South Korea?

    Looking for the cheapest flight from London Heathrow Airport to South Korea? While on average our users pay £2,388, our data indicates the cheapest price to be £563. The most popular route (London Heathrow - Incheon Intl), is priced around £334.

  • Can I find deals for flights from Heathrow to South Korea that include hotel bookings?

    Yes. In addition to deals on Heathrow to South Korea flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to South Korea.

  • Can I find deals for business class flights from Heathrow to South Korea?

    Yes. Cheapflights offers flight deals from Heathrow to South Korea 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 London Heathrow Airport to South Korea?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to South Korea (average of £643). Flying from London Heathrow Airport to South Korea in July is currently the most expensive (average of £1,182). 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

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Alternative routes for Heathrow to South Korea

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Heathrow to South Korea

Discover the top 10 airlines that operate flights from Heathrow to South Korea. 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 August 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£328Average£458FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£335Average£413FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£363Average£603FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£419Average£461FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
LufthansaCheapest£437Average£636FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
LOTCheapest£519Average£707FlexibilityNo cancel feeOn-time81%
Search LOT flights
Etihad AirwaysCheapest£534Average£684FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
FinnairCheapest£542Average£715FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Turkish AirlinesCheapest£543Average£601FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Air FranceCheapest£545Average£731FlexibilityNo cancel feeOn-time77%
Search Air France 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 Heathrow to South Korea?

Deals for Heathrow to South Korea flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to South Korea?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to South Korea by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to South Korea with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to South Korea with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to South Korea become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to South Korea flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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