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Cheap flights from London Heathrow Airport to South Korea from £245

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ICN
27 Jan — 3 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 28 December 2025.

Tue 30/1222:10LHR - ICN
1 stop29h 45mAir China
Sat 17/114:50ICN - LHR
1 stop36h 00mAir China
Deal found 26/12£566
Mon 29/1218:20LHR - ICN
1 stop27h 50mLOT
Tue 20/113:25ICN - LHR
1 stop17h 35mLOT
Deal found 26/12£599
Tue 30/1222:10LHR - ICN
1 stop29h 45mAir China
Sun 18/114:50ICN - LHR
1 stop34h 05mAir China
Deal found 27/12£608
Mon 29/1218:50LHR - ICN
Nonstop12h 35mMultiple Airlines
Tue 20/112:55ICN - LHR
1 stop37h 35mMultiple Airlines
Deal found 26/12£618
Tue 30/1206:30LHR - ICN
1 stop15h 40mLOT
Sat 17/113:25ICN - LHR
1 stop36h 55mLOT
Deal found 26/12£619
Tue 30/1222:10LHR - ICN
1 stop29h 45mAir China
Fri 16/114:50ICN - LHR
1 stop36h 00mAir China
Deal found 26/12£620
Sun 28/1220:10LHR - ICN
Nonstop12h 40mMultiple Airlines
Tue 20/112:55ICN - LHR
1 stop37h 35mMultiple Airlines
Deal found 26/12£631
Sun 28/1220:10LHR - ICN
Nonstop12h 40mMultiple Airlines
Mon 19/114:55ICN - LHR
1 stop38h 20mMultiple Airlines
Deal found 26/12£638
Wed 31/1218:20LHR - ICN
1 stop27h 50mLOT
Sun 18/108:50ICN - LHR
1 stop17h 30mLOT
Deal found 26/12£643
Mon 29/1206:30LHR - ICN
1 stop20h 15mLOT
Sat 17/113:25ICN - LHR
1 stop29h 10mLOT
Deal found 26/12£652
Wed 31/1210:35LHR - ICN
1 stop35h 35mLOT
Fri 16/108:50ICN - LHR
2 stops33h 45mLOT
Deal found 27/12£654
Mon 29/1215:45LHR - ICN
1 stop16h 10mKLM
Thu 19/223:05ICN - LHR
1 stop20h 40mKLM
Deal found 27/12£668

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 28 December 2025.

Round-trip from

£362

One-way from

£245

Popular in

July

Cheapest in

November

Average price

£650

Good round-trip deal

£756 or less

Good one-way deal

£421 or less
China Eastern
  • China Eastern
  • 18/1-24/1
  • 2 total stops
  • 32h 20m total
  • London to South Korea
Search Deals
China Eastern
  • China Eastern
  • 28/1
  • 1 total stop
  • 14h 45m total
  • London to South Korea
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£90 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 28 December 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

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 12/3

20:25-11:45

1 stop30h 20m

Busan Gimhae

Thu 2/4

12:45-17:40

1 stop36h 55m

£408

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 16/3

20:25-11:45

1 stop30h 20m

Busan Gimhae

Mon 23/3

12:45-15:55

1 stop36h 10m

£423

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 10/3

17:40-11:45

1 stop33h 05m

Busan Gimhae

Fri 27/3

12:45-15:55

1 stop36h 10m

£450

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 1/5

22:40-11:45

1 stop29h 05m

Busan Gimhae

Fri 8/5

12:45-20:25

1 stop15h 40m

£451

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 2/6

22:40-13:05

1 stop30h 25m

Seoul Gimpo Intl

Tue 16/6

14:25-20:25

1 stop14h 00m

£455

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 12/5

22:40-13:05

1 stop30h 25m

Seoul Gimpo Intl

Thu 21/5

14:25-20:25

1 stop14h 00m

£455

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Mon 9/3

21:10-14:35

1 stop32h 25m

Jeju City

Fri 27/3

15:35-19:10

1 stop36h 35m

£458

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Fri 13/3

21:10-14:35

1 stop32h 25m

Jeju City

Tue 31/3

15:00-20:00

1 stop37h 00m

£458

LondonJeju City

LHR - CJU

LHRCJU

London Heathrow

Mon 9/3

21:10-14:35

1 stop32h 25m

Jeju City

Tue 31/3

15:00-20:00

1 stop37h 00m

£458

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 3/3

08:30-10:50

1 stop17h 20m

Incheon Intl

Tue 17/3

13:05-08:05

2 stops28h 00m

£472

Flights are sorted by cheapest return flights first.

Deals found on 26/12

Showing 1-10 of 59 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 £267). 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 28 December 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 18% 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 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to South Korea flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday 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 28 December 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).

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 115 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 early afternoon 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, Korean Air 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 28 December 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.
Korean Air
8.5
Very Good
1,184 reviews
Check prices

Overall

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
8.5
Very Good
1,184 reviews
Korean Air
8.5
Very Good
1,184 reviews
Check prices

Overall

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
8.2
Very Good
501 reviews
Korean Air
8.5
Very Good
1,184 reviews
Check prices

Overall

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
7.5
Good
123 reviews
Korean Air
8.5
Very Good
1,184 reviews
Check prices

Overall

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
134 reviews
Korean Air
8.5
Very Good
1,184 reviews
Check prices

Overall

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
7,658 reviews
Korean Air
8.5
Very Good
1,184 reviews
Check prices

Overall

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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 17h 20m. Air China provides one of the quickest options available for as low as £472. The distance between London Heathrow Airport and South Korea is about 5503 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 £220. China Southern flights start at £240 while deals on Air India start at £268 one-way.

  • 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 (82%), Virgin Atlantic (82%), Asiana Airlines (75%).

  • 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 £1,090, our data indicates the cheapest price to be £395. The most popular route (London Heathrow - Incheon Intl), is priced around £336.

  • 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 £267). 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 28 December 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£317Average£436FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£328Average£442FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£371Average£582FlexibilityNo cancel feeOn-time67%
Search Air China flights
LufthansaCheapest£422Average£598FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£452Average£591FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Etihad AirwaysCheapest£535Average£669FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£546Average£680FlexibilityNo cancel feeOn-time77%
Search Air France flights
LOTCheapest£549Average£741FlexibilityNo cancel feeOn-time81%
Search LOT flights
FinnairCheapest£556Average£747FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Turkish AirlinesCheapest£560Average£627FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines 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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