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Cheap flights from South Korea to London from £146

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LON
25 May — 1 Jun1
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 25 April 2026.

Sun 24/512:35
PUS
-
LGW
1 stop34h 25m
China Eastern
Thu 28/511:35
LGW
-
PUS
1 stop16h 00m
China Eastern
Deal found 23/4£405
Mon 11/512:55
ICN
-
LHR
1 stop37h 45m
China Eastern
Mon 18/521:20
LHR
-
ICN
1 stop15h 25m
China Eastern
Deal found 23/4£422
Tue 12/512:55
ICN
-
LGW
1 stop34h 05m
China Eastern
Sun 17/511:35
LGW
-
ICN
1 stop16h 20m
China Eastern
Deal found 22/4£427
Wed 10/612:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Wed 17/621:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Deal found 24/4£441
Fri 26/613:05
ICN
-
LHR
1 stop15h 20m
Air China
Sun 5/722:40
LHR
-
ICN
1 stop15h 20m
Air China
Deal found 22/4£486
Tue 5/511:40
ICN
-
LHR
1 stop17h 45m
Air France
Mon 11/506:15
LHR
-
ICN
1 stop19h 20m
Air France
Deal found 21/4£496
Thu 18/617:45
ICN
-
LTN
2 stops28h 50m
Multiple Airlines
Thu 25/615:15
LTN
-
ICN
2 stops22h 50m
Multiple Airlines
Deal found 20/4£511
Mon 13/718:25
ICN
-
LGW
1 stop28h 35m
China Eastern
Wed 22/711:35
LGW
-
ICN
1 stop19h 35m
China Eastern
Deal found 25/4£512
Mon 11/514:55
ICN
-
LHR
1 stop37h 20m
Multiple Airlines
Mon 18/522:05
LHR
-
ICN
1 stop32h 10m
Multiple Airlines
Deal found 23/4£514
Thu 4/617:45
ICN
-
STN
2 stops32h 25m
Multiple Airlines
Thu 18/614:05
STN
-
ICN
2 stops24h 00m
Multiple Airlines
Deal found 20/4£515
Sun 12/718:25
ICN
-
LGW
1 stop28h 35m
China Eastern
Sun 19/711:35
LGW
-
ICN
1 stop16h 20m
China Eastern
Deal found 25/4£516
Tue 12/516:20
ICN
-
LGW
1 stop22h 20m
China Eastern
Thu 11/611:35
LGW
-
ICN
1 stop25h 10m
China Eastern
Deal found 20/4£518

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 25 April 2026.

Round-trip from

£405

One-way from

£146

Popular in

October

Cheapest in

January

Average price

£571

Good round-trip deal

£585 or less

Good one-way deal

£294 or less
China Eastern
  • China Eastern
  • 24/5-28/5
  • 2 total stops
  • 50h 25m total
  • South Korea to London
Search Deals
China Eastern
  • China Eastern
  • 19/5
  • 1 total stop
  • 22h 25m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 25 April 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

Cheapest return flight

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 7/5

11:40-22:40

1 stop19h 00m

London Heathrow

Tue 19/5

09:00-09:55

1 stop16h 55m

£538

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Mon 8/6

22:45-12:55

1 stop22h 10m

London Stansted

Mon 22/6

21:05-18:40

1 stop37h 35m

£588

IncheonLondon

ICN - SEN

ICNSEN

Incheon Intl

Wed 17/6

01:35-21:50

2 stops28h 15m

London Southend

Thu 25/6

16:35-22:05

2 stops21h 30m

£588

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Mon 8/6

22:45-18:45

1 stop28h 00m

London Stansted

Wed 17/6

21:05-18:40

1 stop37h 35m

£588

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 28/5

17:50-12:45

1 stop26h 55m

London Heathrow

Fri 5/6

09:30-10:50

1 stop17h 20m

£591

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Wed 6/5

22:45-18:45

1 stop28h 00m

London Stansted

Mon 11/5

21:05-18:40

1 stop37h 35m

£593

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Mon 15/6

22:45-21:30

1 stop30h 45m

London Gatwick

Wed 9/9

21:45-18:40

1 stop36h 55m

£594

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Wed 22/7

22:45-21:30

1 stop30h 45m

London Gatwick

Tue 28/7

10:05-18:40

1 stop24h 35m

£596

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Thu 21/5

23:55-12:55

1 stop21h 00m

London Stansted

Thu 28/5

14:55-18:40

1 stop19h 45m

£601

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Sun 21/6

12:35-15:00

1 stop34h 25m

London Gatwick

Wed 24/6

11:35-16:50

1 stop21h 15m

£609

Flights are sorted by cheapest return flights first.

Deals found on 20/4

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

How far ahead should I book a flight from South Korea to London?

The price you pay for your flight from South Korea to London may vary depending on when you book. For the best chance of a lower fare, look to book 21 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from South Korea to London (average of £132). Flying from South Korea to London in February is currently the most expensive (average of £1,507). 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 25 April 2026.

When flying from South Korea to London, 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

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 25 April 2026.

The most flights from KR0 to LON are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 93 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 Monday 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 25 April 2026.
Read reviews from past customers who have flown with Asiana Airlines,Virgin Atlantic, andAir China 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
521 reviews
Check prices

Crew

8.4

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Asiana Airlines
8.1
Very Good
521 reviews
Asiana Airlines
8.1
Very Good
521 reviews
Check prices

Crew

8.4

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Virgin Atlantic
7.4
Good
688 reviews
Asiana Airlines
8.1
Very Good
521 reviews
Check prices

Crew

8.4

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Air China
7.3
Good
148 reviews
Asiana Airlines
8.1
Very Good
521 reviews
Check prices

Crew

8.4

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
China Eastern
7.2
Good
208 reviews
Asiana Airlines
8.1
Very Good
521 reviews
Check prices

Crew

8.4

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.
Lufthansa
6.8
Okay
7,950 reviews
Asiana Airlines
8.1
Very Good
521 reviews
Check prices

Crew

8.4

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

ICN - PEK

Food was better and a smaller business class made the experience more personal.

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 19h. Airlines will cover a distance of 5503 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: Virgin Atlantic (86%), Korean Air (83%), Asiana Airlines (77%).

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

    On average you can expect to pay £834 for a flight from South Korea to London. The cheapest flight overall is £267 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at £526.

  • 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, April is the cheapest month in which you can book a flight from South Korea to London (average of £132). Flying from South Korea to London in February is currently the most expensive (average of £1,507). 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
Milton Keynes
Wembley
Croydon
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Watford
Kingston upon Thames
Romford
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

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Alternative routes for South Korea to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from South Korea to London

Discover the top 4 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 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£438Average£573FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£478Average£557FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£490Average£690FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Korean AirCheapest£614Average£816FlexibilityNo 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 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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