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Cheap flights from South Korea to London 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 28/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LON
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from South Korea to London

Enter your travel dates to find the best prices.

Cheapest flights from South Korea to London
Explore the most affordable flight options available from South Korea to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 February 2026.

Wed 13/516:45
ICN
-
LHR
1 stop34h 15m
China Southern
Wed 20/522:10
LHR
-
ICN
1 stop31h 45m
China Southern
Deal found 23/2£329
Mon 30/318:25
ICN
-
LGW
1 stop28h 35m
China Eastern
Sun 12/411:35
LGW
-
ICN
1 stop16h 20m
China Eastern
Deal found 24/2£329
Tue 31/312:55
ICN
-
LGW
1 stop34h 05m
China Eastern
Thu 2/411:35
LGW
-
ICN
1 stop19h 35m
China Eastern
Deal found 25/2£330
Mon 30/312:20
ICN
-
LHR
Nonstop14h 30m
Virgin Atlantic
Sun 12/413:25
LHR
-
ICN
Nonstop13h 05m
Virgin Atlantic
Deal found 25/2£330
Wed 13/516:45
ICN
-
LHR
1 stop34h 15m
China Southern
Sun 17/522:10
LHR
-
ICN
1 stop31h 45m
China Southern
Deal found 23/2£331
Mon 23/316:20
ICN
-
LGW
1 stop30h 40m
China Eastern
Thu 9/411:35
LGW
-
ICN
1 stop19h 35m
China Eastern
Deal found 22/2£331
Mon 2/318:25
ICN
-
LGW
1 stop21h 05m
China Eastern
Sun 8/310:30
LGW
-
ICN
1 stop21h 55m
China Eastern
Deal found 24/2£333
Tue 3/318:25
ICN
-
LGW
1 stop28h 35m
China Eastern
Sun 8/310:30
LGW
-
ICN
1 stop19h 50m
China Eastern
Deal found 23/2£334
Sat 28/316:10
ICN
-
LGW
1 stop31h 50m
China Eastern
Sun 5/419:00
LGW
-
ICN
1 stop36h 10m
China Eastern
Deal found 25/2£335
Sat 7/316:20
ICN
-
LGW
1 stop23h 10m
China Eastern
Thu 12/317:00
LGW
-
ICN
1 stop37h 20m
China Eastern
Deal found 25/2£336
Mon 19/1008:15
ICN
-
LGW
1 stop31h 05m
AirAsia X
Sun 8/1109:25
LGW
-
ICN
1 stop35h 55m
AirAsia X
Deal found 25/2£337
Thu 7/516:45
ICN
-
LHR
1 stop34h 15m
China Southern
Thu 21/522:10
LHR
-
ICN
1 stop33h 15m
China Southern
Deal found 23/2£338

Find flight deals from South Korea to London

Keep the following information in mind while searching for South Korea to London flight deals. Data was last updated 26 February 2026.

Round-trip from

£329

One-way from

£135

Popular in

October

Cheapest in

June

Average price

£593

Good round-trip deal

£543 or less

Good one-way deal

£313 or less
China Southern
  • China Southern
  • 13/5-20/5
  • 2 total stops
  • 66h 00m total
  • South Korea to London
Search Deals
China Eastern
  • China Eastern
  • 28/6
  • 1 total stop
  • 34h 35m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£61 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 (LON).
Search Deals
Price to beat on a one-way flight from South Korea to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from South Korea to London 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 26 February 2026.
Use the filters below to find and compare flights from South Korea to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 21/5

13:30-18:05

1 stop36h 35m

London Heathrow

Sun 31/5

21:00-12:25

1 stop31h 25m

£382

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 9/3

17:50-14:00

1 stop29h 10m

London Gatwick

Wed 11/3

17:00-16:50

1 stop14h 50m

£404

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 3/4

08:55-15:00

1 stop38h 05m

London Gatwick

Mon 20/4

11:35-11:55

1 stop16h 20m

£421

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 22/5

15:15-19:50

1 stop36h 35m

London Heathrow

Sat 30/5

22:05-15:50

1 stop33h 45m

£432

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 21/8

08:15-07:25

1 stop31h 10m

London Gatwick

Mon 7/9

10:25-07:00

1 stop36h 35m

£471

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 8/5

14:15-15:00

2 stops32h 45m

London Gatwick

Thu 21/5

11:35-15:10

1 stop19h 35m

£481

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Mon 11/5

15:55-14:35

3 stops30h 40m

London Luton

Mon 18/5

15:15-11:00

3 stops35h 45m

£526

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 12/6

13:30-18:05

1 stop36h 35m

London Heathrow

Thu 18/6

20:25-13:05

1 stop32h 40m

£528

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 9/3

12:45-06:55

2 stops27h 10m

London Gatwick

Wed 11/3

11:05-11:45

2 stops39h 40m

£546

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Mon 18/5

15:55-14:20

3 stops30h 25m

London Luton

Tue 26/5

05:40-14:55

3 stops25h 15m

£550

Flights are sorted by cheapest return flights first.

Deals found on 24/2

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from South Korea to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, September is the cheapest month in which you can book a flight from South Korea to London (average of £108). Flying from South Korea to London in August is currently the most expensive (average of £531). 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 LON?

Find hourly flight availability from South Korea to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 February 2026.

It’s typically best to fly out from South Korea to London in the afternoon. Doing so could potentially save you 37% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from South Korea to London. Price data was last updated on 21 February 2026.

Travellers seeking maximum savings on their South Korea to London flight should consider departing on Monday 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

Explore weekly flight availability from South Korea to London. 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 26 February 2026.

The most flights from KR0 to LON 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 26 February 2026.
Read reviews from past customers who have flown with Asiana Airlines, China Southern, andChina Eastern from South Korea to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Asiana Airlines
8.1
Very Good
502 reviews
Check prices

Entertainment

7.6

Overall

8.1

Food

8.0

Boarding

8.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Asiana Airlines
8.1
Very Good
502 reviews
Asiana Airlines
8.1
Very Good
502 reviews
Check prices

Entertainment

7.6

Overall

8.1

Food

8.0

Boarding

8.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
China Southern
7.4
Good
138 reviews
Asiana Airlines
8.1
Very Good
502 reviews
Check prices

Entertainment

7.6

Overall

8.1

Food

8.0

Boarding

8.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
China Eastern
7.2
Good
196 reviews
Asiana Airlines
8.1
Very Good
502 reviews
Check prices

Entertainment

7.6

Overall

8.1

Food

8.0

Boarding

8.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Air China
7.2
Good
139 reviews
Asiana Airlines
8.1
Very Good
502 reviews
Check prices

Entertainment

7.6

Overall

8.1

Food

8.0

Boarding

8.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Lufthansa
6.8
Okay
7,814 reviews
Asiana Airlines
8.1
Very Good
502 reviews
Check prices

Entertainment

7.6

Overall

8.1

Food

8.0

Boarding

8.3

Crew

8.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Derek,Dec 2025

NRT - ICN

This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.

Related info for your journey

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

    Departing from South Korea to London will take you 25h 45m. Airlines will cover a distance of 5512 mi. This flight may include one or multiple stops.

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

    The most popular route from South Korea to London is Incheon Intl - London Heathrow. You may also consider Incheon Intl - London Gatwick or Incheon Intl - London Stansted.

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

    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 South Korea to London on time: Korean Air (75%), Virgin Atlantic (62%), Asiana Airlines (36%).

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

    On average you can expect to pay £692 for a flight from South Korea to London. The cheapest flight overall is £257 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at £340.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from South Korea to London (average of £108). Flying from South Korea to London in August is currently the most expensive (average of £531). 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?

Book flights to London if you plan to visit one of these locations
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Croydon
Wembley
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Gatwick
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Hounslow
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Bedford
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Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from South Korea to London

Discover the top 5 airlines that operate flights from South Korea to London. 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 26 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£436Average£571FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£467Average£682FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£480Average£596FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£514Average£698FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Korean AirCheapest£612Average£814FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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How does Cheapflights help users find flights from South Korea to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from South Korea today with Cheapflights!

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

Cheapflights helps you find that perfect flight to London 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 London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from South Korea to London flexibly with Cheapflights today.

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

Yes! Start tracking prices for South Korea to London 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.

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