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Cheap flights from South Korea to London from £122

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LON
11 Jan — 18 Jan1
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 12 December 2025.

Thu 25/1217:50PUS - LGW
1 stop29h 10mChina Eastern
Sun 18/117:00LGW - PUS
1 stop33h 35mChina Eastern
Deal found 11/12£326
Wed 17/1212:00GMP - LGW
1 stop27h 30mChina Eastern
Wed 31/1217:00LGW - GMP
1 stop33h 00mChina Eastern
Deal found 10/12£392
Mon 22/1212:00GMP - LGW
1 stop27h 30mChina Eastern
Wed 11/310:30LGW - GMP
1 stop24h 20mChina Eastern
Deal found 10/12£396
Wed 17/1209:25ICN - LHR
1 stop18h 10mChina Southern
Wed 7/121:30LHR - ICN
1 stop15h 45mChina Southern
Deal found 10/12£404
Wed 17/1212:55ICN - LGW
1 stop26h 35mChina Eastern
Wed 14/110:30LGW - ICN
1 stop16h 25mChina Eastern
Deal found 11/12£404
Wed 24/1208:55ICN - LHR
1 stop17h 35mMultiple Airlines
Wed 7/121:30LHR - ICN
1 stop15h 45mMultiple Airlines
Deal found 11/12£405
Mon 15/1222:45ICN - LGW
1 stop27h 35mChina Southern
Tue 6/120:20LGW - ICN
1 stop16h 25mChina Southern
Deal found 11/12£405
Tue 23/1208:55ICN - LHR
1 stop17h 35mMultiple Airlines
Thu 1/121:35LHR - ICN
1 stop30h 20mMultiple Airlines
Deal found 11/12£406
Mon 29/1222:45ICN - LGW
1 stop27h 35mChina Southern
Sat 10/120:20LGW - ICN
1 stop16h 25mChina Southern
Deal found 11/12£406
Wed 17/1216:20ICN - LHR
1 stop34h 10mMultiple Airlines
Thu 8/121:30LHR - ICN
1 stop15h 45mMultiple Airlines
Deal found 11/12£406
Tue 23/1216:20ICN - LHR
1 stop34h 10mMultiple Airlines
Wed 18/217:40LHR - ICN
1 stop34h 40mMultiple Airlines
Deal found 10/12£408
Tue 16/1212:55ICN - LHR
1 stop37h 35mMultiple Airlines
Tue 6/122:10LHR - ICN
1 stop29h 45mMultiple Airlines
Deal found 10/12£409

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 12 December 2025.

Round-trip from

£326

One-way from

£122

Popular in

October

Cheapest in

June

Average price

£521

Good round-trip deal

£485 or less

Good one-way deal

£329 or less
China Eastern
  • China Eastern
  • 25/12-18/1
  • 2 total stops
  • 62h 45m total
  • South Korea to London
Search Deals
China Eastern
  • China Eastern
  • 22/1
  • 1 total stop
  • 29h 10m total
  • South Korea to London
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 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 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 12 December 2025.
Use the filters below to find and compare flights from South Korea to London that are best for you.

Fly from

South Korea

Fly to

London

Route

Depart

Return

Price

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 19/1

12:35-14:00

1 stop34h 25m

London Gatwick

Mon 26/1

10:30-11:35

1 stop16h 05m

£355

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 19/1

12:35-14:00

1 stop34h 25m

London Gatwick

Fri 23/1

10:30-11:35

1 stop16h 05m

£359

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Thu 29/1

12:35-06:30

1 stop26h 55m

London Gatwick

Sat 7/2

10:30-11:35

1 stop16h 05m

£359

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Sun 25/1

12:35-14:00

1 stop34h 25m

London Gatwick

Fri 6/2

10:30-11:35

1 stop16h 05m

£360

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Fri 30/1

12:35-06:30

1 stop26h 55m

London Gatwick

Sun 8/2

17:00-16:50

1 stop14h 50m

£361

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 2/3

12:35-06:30

1 stop26h 55m

London Gatwick

Mon 9/3

10:30-11:35

1 stop16h 05m

£367

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Sun 17/5

14:25-06:35

1 stop24h 10m

London Gatwick

Mon 25/5

12:35-13:05

1 stop16h 30m

£397

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 19/1

12:45-06:55

2 stops27h 10m

London Gatwick

Mon 26/1

11:05-11:45

2 stops39h 40m

£400

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Tue 12/5

14:25-06:35

1 stop24h 10m

London Gatwick

Thu 11/6

12:35-13:05

1 stop16h 30m

£402

BusanLondon

PUS - LGW

PUSLGW

Busan Gimhae

Mon 19/1

12:45-06:55

2 stops27h 10m

London Gatwick

Tue 27/1

11:05-11:45

2 stops39h 40m

£403

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 60 results
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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
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 £109). Flying from South Korea to London in August is currently the most expensive (average of £557). 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 12 December 2025.

It’s typically best to fly out from South Korea to London in the afternoon. Doing so could potentially save you 49% on the flight price compared to flying in the morning, 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 16 December 2024.

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 12 December 2025.

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 29% of weekly flights between South Korea and London have experienced delays in the past year, with the average delay time being 105 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?

Tuesday 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 21% 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 12 December 2025.
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
8.2
Very Good
492 reviews
Check prices

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Overall

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
Asiana Airlines
8.2
Very Good
492 reviews
Asiana Airlines
8.2
Very Good
492 reviews
Check prices

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Overall

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
China Southern
7.5
Good
122 reviews
Asiana Airlines
8.2
Very Good
492 reviews
Check prices

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Overall

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
China Eastern
7.2
Good
178 reviews
Asiana Airlines
8.2
Very Good
492 reviews
Check prices

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Overall

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
Air China
7.2
Good
127 reviews
Asiana Airlines
8.2
Very Good
492 reviews
Check prices

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Overall

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.
Lufthansa
6.8
Okay
7,626 reviews
Asiana Airlines
8.2
Very Good
492 reviews
Check prices

Boarding

8.4

Food

8.1

Entertainment

7.7

Crew

8.6

Comfort

8.1

Overall

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

BKK - ICN

We wished that Asiana Airlines website should perform better by itself. Thanks to "Genfly" by Kayak that helped us get the tickets for us. Genfly also follow up with update flights schedule all the way. We gave Asiana Airlines "GOOD", and "Genfly" by Kayak "EXCELLENT" **** BTW...we will do it again nest time. Real passengers.

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 18h 10m. 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 Air China (£135), Etihad Airways (£214), and Asiana Airlines (£255).

  • 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 Stansted or Incheon Intl - London Gatwick.

  • 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 (61%), Korean Air (55%), Asiana Airlines (46%).

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

    On average you can expect to pay £506 for a flight from South Korea to London. The cheapest flight overall is £255 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at £353.

  • 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 £109). Flying from South Korea to London in August is currently the most expensive (average of £557). 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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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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£355Average£689FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£441Average£577FlexibilityNo cancel feeOn-time67%
Search Air China flights
Asiana AirlinesCheapest£485Average£592FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£724Average£823FlexibilityNo 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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