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Cheap flights from London Heathrow Airport to South Korea from £248

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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ICN
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to South Korea

Enter your travel dates to find the best prices.

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 22 January 2026.

Thu 23/421:00
LHR
-
ICN
1 stop17h 10m
China Southern
Sat 9/509:25
ICN
-
LHR
1 stop16h 40m
China Southern
Deal found 20/1£342
Sun 8/321:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Sat 21/308:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Deal found 21/1£343
Mon 27/421:20
LHR
-
ICN
1 stop32h 10m
China Eastern
Tue 5/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Deal found 20/1£348
Wed 11/321:30
LHR
-
ICN
1 stop15h 45m
China Southern
Wed 18/309:25
ICN
-
LHR
1 stop18h 10m
China Southern
Deal found 21/1£356
Wed 21/121:00
LHR
-
ICN
2 stops30h 15m
China Eastern
Tue 3/212:55
ICN
-
LHR
1 stop37h 35m
China Eastern
Deal found 20/1£361
Tue 27/121:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Tue 3/207:25
ICN
-
LHR
2 stops43h 05m
China Eastern
Deal found 20/1£362
Wed 13/521:00
LHR
-
ICN
1 stop17h 10m
China Southern
Wed 20/509:25
ICN
-
LHR
1 stop16h 40m
China Southern
Deal found 20/1£365
Thu 29/121:00
LHR
-
ICN
3 stops55h 15m
China Eastern
Wed 4/316:40
ICN
-
LHR
2 stops33h 50m
China Eastern
Deal found 21/1£367
Sun 25/121:00
LHR
-
ICN
1 stop33h 05m
China Eastern
Wed 28/112:55
ICN
-
LHR
1 stop37h 35m
China Eastern
Deal found 20/1£371
Sun 25/121:30
LHR
-
ICN
1 stop15h 45m
Multiple Airlines
Tue 27/116:10
ICN
-
LHR
1 stop34h 20m
Multiple Airlines
Deal found 21/1£373
Sun 25/121:30
LHR
-
GMP
1 stop29h 55m
Multiple Airlines
Tue 27/120:50
GMP
-
LHR
1 stop29h 40m
Multiple Airlines
Deal found 21/1£374
Fri 23/1021:20
LHR
-
ICN
2 stops33h 20m
China Eastern
Sun 8/1108:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Deal found 20/1£374

Find 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 22 January 2026.

Round-trip from

£342

One-way from

£248

Popular in

August

Cheapest in

November

Average price

£459

Good round-trip deal

£613 or less

Good one-way deal

£485 or less
China Southern
  • China Southern
  • 23/4-9/5
  • 2 total stops
  • 33h 50m total
  • London to South Korea
Search Deals
China Eastern
  • China Eastern
  • 8/3
  • 1 total stop
  • 29h 00m total
  • London to South Korea
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to South Korea.
Search Deals
Price to beat on a one-way flight from London Heathrow to South Korea.
Search Deals

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 22 January 2026.
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

Wed 11/3

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 1/4

13:25-18:05

1 stop36h 40m

£430

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 9/3

17:40-11:45

1 stop33h 05m

Busan Gimhae

Fri 13/3

12:45-15:55

1 stop36h 10m

£456

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 6/3

17:40-11:45

1 stop33h 05m

Busan Gimhae

Fri 13/3

12:45-15:55

1 stop36h 10m

£462

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 8/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sun 14/6

13:25-18:05

1 stop36h 40m

£476

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Fri 6/3

21:10-14:35

1 stop32h 25m

Jeju City

Fri 13/3

15:35-19:10

1 stop36h 35m

£479

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 12/3

17:40-11:45

1 stop33h 05m

Busan Gimhae

Mon 16/3

12:45-15:55

1 stop36h 10m

£480

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 16/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Thu 4/6

13:25-18:05

1 stop36h 40m

£489

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Wed 11/3

21:10-14:35

1 stop32h 25m

Jeju City

Sat 28/3

13:50-17:40

1 stop36h 50m

£490

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 15/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sun 31/5

13:25-18:05

1 stop36h 40m

£490

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Wed 4/3

17:15-22:20

2 stops20h 05m

Jeju City

Tue 24/3

21:55-17:55

2 stops53h 00m

£517

Flights are sorted by cheapest return flights first.

Deals found on 20/1

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 £337). Flying from London Heathrow Airport to South Korea in July is currently the most expensive (average of £602). 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 22 January 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 28% on flights from London Heathrow Airport to South Korea by exploring options for tickets at midday.

What is the cheapest day to fly from London Heathrow Airport to South Korea?

Use this chart to determine the cheapest time to fly return from Heathrow to South Korea. Price data was last updated on 17 January 2026.

Travellers seeking maximum savings on their London Heathrow Airport to South Korea flight should consider departing on Tuesday at midday when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 22 January 2026.

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).

How often are flights from London to South Korea delayed?

About 14% of weekly flights between London and South Korea have experienced delays in the past year, with the average delay time being 111 minutes.

What is the most punctual flight time for London to South Korea flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday 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 London to South Korea flights?

Over the past year, Asiana Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.

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 22 January 2026.
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.
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

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.
Korean Air
8.4
Very Good
1,187 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

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.
Asiana Airlines
8.1
Very Good
501 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

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.
China Southern
7.3
Good
135 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

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.
Air China
7.2
Good
138 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

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.
Lufthansa
6.8
Okay
7,740 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

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 55m. China Southern provides one of the quickest options available for as low as £430. The distance between London Heathrow Airport and South Korea is about 5506 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    When deciding which route to take from London Heathrow Airport to South Korea consider London Heathrow - Incheon Intl, London Heathrow - Seoul Gimpo Intl or London Heathrow - Busan Gimhae as they are the most popular.

  • 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 (73%), Virgin Atlantic (73%), Asiana Airlines (67%).

  • 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 £1,028, our data indicates the cheapest price to be £422. The most popular route (London Heathrow - Incheon Intl), is priced around £367.

  • 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 £337). Flying from London Heathrow Airport to South Korea in July is currently the most expensive (average of £602). 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.
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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 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£319Average£455FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£330Average£453FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£356Average£579FlexibilityNo cancel feeOn-time67%
Search Air China flights
LufthansaCheapest£423Average£606FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£456Average£595FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Etihad AirwaysCheapest£527Average£668FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£543Average£678FlexibilityNo cancel feeOn-time77%
Search Air France flights
LOTCheapest£556Average£766FlexibilityNo cancel feeOn-time81%
Search LOT flights
Turkish AirlinesCheapest£563Average£629FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
KLMCheapest£564Average£723FlexibilityNo cancel feeOn-time75%
Search KLM 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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