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Cheap flights from South Korea to London from £165

ICN — LON
22 Sep — 29 Sep1
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

Wed 21/1012:35 -
1 stop34h 25m
Wed 28/1017:00 -
1 stop33h 35m
Deal found 23/8£470
Tue 3/1112:35 -
1 stop26h 55m
Mon 16/1117:00 -
1 stop33h 35m
Deal found 20/8£492
Wed 14/1012:45 -
1 stop25h 50m
Thu 29/1011:05 -
2 stops39h 40m
Deal found 20/8£497
Wed 21/1012:45 -
1 stop25h 50m
Wed 28/1011:05 -
2 stops39h 40m
Deal found 23/8£498
Tue 27/1012:45 -
1 stop26h 35m
Mon 2/1111:35 -
1 stop15h 10m
Deal found 18/8£501
Mon 7/912:35 -
1 stop34h 25m
Fri 11/918:00 -
1 stop33h 35m
Deal found 22/8£503
Fri 11/912:45 -
1 stop37h 20m
Sun 13/912:35 -
1 stop15h 10m
Deal found 18/8£506
Wed 21/1012:45 -
1 stop15h 40m
Wed 28/1017:40 -
1 stop33h 05m
Deal found 23/8£506
Wed 14/1012:35 -
1 stop26h 05m
Thu 29/1010:30 -
1 stop16h 05m
Deal found 20/8£508
Thu 20/812:35 -
1 stop34h 25m
Fri 28/818:00 -
1 stop33h 35m
Deal found 19/8£509
Sat 3/1017:50 -
1 stop32h 50m
Sat 10/1021:20 -
1 stop30h 15m
Deal found 19/8£509
Fri 6/1115:15 -
1 stop36h 20m
Fri 13/1121:30 -
1 stop15h 40m
Deal found 22/8£512

Find flight deals from South Korea to London

Round-trip from

£486

One-way from

£165

Popular in

October

Cheapest in

January

Average price

£583

Good round-trip deal

£936 or less

Good one-way deal

£428 or less
China Eastern
  • China Eastern
  • 21/10-28/10
  • 2 total stops
  • 54h 25m total
  • South Korea to London
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China Southern
  • China Southern
  • 10/10
  • 1 total stop
  • 17h 40m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£43 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 August 2026
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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).
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Cheapflights Fare Finder

 
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

BusanLondon

PUS Busan Gimhae - LGW London Gatwick

PUSLGW

Busan Gimhae

Thu 3/12

12:45-05:40

1 stop25h 55m

London Gatwick

Sun 6/12

11:35-11:45

1 stop15h 10m

£514

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Tue 13/10

14:25-06:35

1 stop24h 10m

London Gatwick

Tue 20/10

12:35-13:05

1 stop16h 30m

£525

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Wed 14/10

14:25-06:35

1 stop24h 10m

London Gatwick

Tue 20/10

12:35-13:05

1 stop16h 30m

£525

IncheonLondon

ICN Incheon Intl - LHR London Heathrow

ICNLHR

Incheon Intl

Thu 24/12

23:45-21:40

1 stop30h 55m

London Heathrow

Tue 29/12

21:05-19:00

2 stops36h 55m

£530

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Sun 8/11

14:25-06:20

1 stop24h 55m

London Gatwick

Sun 15/11

11:35-13:05

1 stop16h 30m

£532

SeoulLondon

GMP Seoul Gimpo Intl - LGW London Gatwick

GMPLGW

Seoul Gimpo Intl

Mon 12/10

14:25-06:55

2 stops24h 30m

London Gatwick

Wed 21/10

12:35-13:05

1 stop16h 30m

£538

IncheonLondon

ICN Incheon Intl - LHR London Heathrow

ICNLHR

Incheon Intl

Thu 3/12

12:55-20:50

1 stop16h 55m

London Heathrow

Fri 11/12

07:40-11:15

1 stop18h 35m

£546

IncheonLondon

ICN Incheon Intl - LHR London Heathrow

ICNLHR

Incheon Intl

Tue 12/1

23:45-18:30

1 stop27h 45m

London Heathrow

Tue 19/1

19:50-19:00

2 stops38h 10m

£546

IncheonLondon

ICN Incheon Intl - LHR London Heathrow

ICNLHR

Incheon Intl

Tue 29/12

23:45-16:00

1 stop25h 15m

London Heathrow

Fri 1/1

07:05-19:00

2 stops26h 55m

£566

IncheonLondon

ICN Incheon Intl - LHR London Heathrow

ICNLHR

Incheon Intl

Wed 3/2

12:55-08:05

2 stops28h 10m

London Heathrow

Wed 10/2

06:35-11:00

2 stops19h 25m

£580

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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, November is the cheapest month in which you can book a flight from South Korea to London (average of £495). Flying from South Korea to London in October is currently the most expensive (average of £865). 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?

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

The most flights from KR0 to LON are scheduled on a Tuesday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from South Korea to London delayed?

About 26% of weekly flights between South Korea and London have experienced delays in the past year, with the average delay time being 120 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 at night 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 Friday 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, Virgin Atlantic have had the lowest number of delays on this route, with just 14% of flights being delayed.

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 33 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing London

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
558 reviews
Check prices

Boarding

8.3

Entertainment

7.6

Crew

8.5

Food

8.0

Comfort

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

HKG - ICN

The services was excellent. The seating wasn’t as comfortable as others. The food was good.
Asiana Airlines
8.1
Very Good
558 reviews
Asiana Airlines
8.1
Very Good
558 reviews
Check prices

Boarding

8.3

Entertainment

7.6

Crew

8.5

Food

8.0

Comfort

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

HKG - ICN

The services was excellent. The seating wasn’t as comfortable as others. The food was good.
Virgin Atlantic
7.4
Good
695 reviews
Asiana Airlines
8.1
Very Good
558 reviews
Check prices

Boarding

8.3

Entertainment

7.6

Crew

8.5

Food

8.0

Comfort

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

HKG - ICN

The services was excellent. The seating wasn’t as comfortable as others. The food was good.
Air China
7.4
Good
161 reviews
Asiana Airlines
8.1
Very Good
558 reviews
Check prices

Boarding

8.3

Entertainment

7.6

Crew

8.5

Food

8.0

Comfort

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

HKG - ICN

The services was excellent. The seating wasn’t as comfortable as others. The food was good.
China Eastern
7.3
Good
232 reviews
Asiana Airlines
8.1
Very Good
558 reviews
Check prices

Boarding

8.3

Entertainment

7.6

Crew

8.5

Food

8.0

Comfort

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

HKG - ICN

The services was excellent. The seating wasn’t as comfortable as others. The food was good.
Lufthansa
6.8
Okay
8,211 reviews
Asiana Airlines
8.1
Very Good
558 reviews
Check prices

Boarding

8.3

Entertainment

7.6

Crew

8.5

Food

8.0

Comfort

8.0

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

HKG - ICN

The services was excellent. The seating wasn’t as comfortable as others. The food was good.

Related info for your journey

  • How long is the flight from South Korea to London?

    Departing from South Korea to London will take you 16h 55m. Airlines will cover a distance of 5503 mi. This flight may include one or multiple stops.

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

    The cheapet airlines for a one-way flight from South Korea to London are China Eastern (£117), Air China (£129), and Etihad Airways (£229).

  • 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 (87%), Asiana Airlines (80%), Korean Air (72%).

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

    On average you can expect to pay £1,057 for a flight from South Korea to London. The cheapest flight overall is £385 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at £451.

  • 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, November is the cheapest month in which you can book a flight from South Korea to London (average of £495). Flying from South Korea to London in October is currently the most expensive (average of £865). 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Kingston upon Thames
Southall
Watford
Dover
Romford

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from South Korea to London

AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£457Average£566FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£473Average£533FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Virgin AtlanticCheapest£506Average£689FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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

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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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