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Cheap flights from South Korea to London from £122

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to London departing on 27/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from South Korea to London

Recent return flight deals from South Korea to London

Enter your travel dates to find the best prices.
China Eastern Logo
18:55 - 17:30
CJU
-
LHR
31h 35m1 stop
China Eastern Logo
21:00 - 12:50
LHR
-
CJU
30h 50m1 stop
£388China Eastern
Sun, 25 Jan - Sat, 7 Feb
China Eastern Logo
17:50 - 17:30
PUS
-
LHR
32h 40m1 stop
China Eastern Logo
21:00 - 11:35
LHR
-
PUS
29h 35m1 stop
£388China Eastern
Mon, 26 Jan - Thu, 29 Jan
China Eastern Logo
17:50 - 17:30
PUS
-
LHR
32h 40m1 stop
China Eastern Logo
21:00 - 16:50
LHR
-
PUS
34h 50m1 stop
£391China Eastern
Tue, 20 Jan - Thu, 22 Jan
Multiple Airlines Logo
20:50 - 17:30
GMP
-
LHR
29h 40m1 stop
Multiple Airlines Logo
21:30 - 12:25
LHR
-
GMP
29h 55m1 stop
£407Multiple Airlines
Tue, 20 Jan - Sat, 24 Jan
Multiple Airlines Logo
14:55 - 20:15
ICN
-
LHR
38h 20m1 stop
Multiple Airlines Logo
21:30 - 22:15
LHR
-
ICN
15h 45m1 stop
£408Multiple Airlines
Mon, 19 Jan - Fri, 23 Jan
Air China Logo
13:10 - 15:55
ICN
-
LHR
35h 45m1 stop
Air China Logo
20:25 - 11:40
LHR
-
ICN
30h 15m1 stop
£409Air China
Mon, 2 Mar - Thu, 12 Mar
Air China Logo
14:25 - 20:25
GMP
-
LHR
14h 00m1 stop
Air China Logo
22:40 - 13:05
LHR
-
GMP
30h 25m1 stop
£419Air China
Wed, 1 Apr - Wed, 8 Apr
China Southern Logo
13:30 - 17:55
GMP
-
LHR
37h 25m1 stop
China Southern Logo
21:30 - 12:25
LHR
-
GMP
29h 55m1 stop
£422China Southern
Wed, 25 Feb - Thu, 5 Mar
Singapore Airlines Logo
08:35 - 05:55
CJU
-
LHR
29h 20m1 stop
Singapore Airlines Logo
22:05 - 07:15
LHR
-
CJU
25h 10m1 stop
£668Singapore Airlines
Mon, 11 May - Sat, 16 May
Singapore Airlines Logo
08:35 - 07:45
CJU
-
LHR
31h 10m1 stop
Singapore Airlines Logo
22:05 - 07:15
LHR
-
CJU
25h 10m1 stop
£713Singapore Airlines
Mon, 11 May - Fri, 15 May

China Eastern flights from South Korea to London Heathrow Airport

Our best China Eastern deals on South Korea to London Heathrow Airport flight tickets
China Eastern
25 Jan
CJU18:55Jeju City
31h 35m
1 stop
LHR17:30London Heathrow
7 Feb
LHR21:00London Heathrow
30h 50m
1 stop
CJU12:50Jeju City
£388
Find similar
China Eastern
20 Jan
PUS17:50Busan Gimhae
32h 40m
1 stop
LHR17:30London Heathrow
22 Jan
LHR21:00London Heathrow
34h 50m
1 stop
PUS16:50Busan Gimhae
£391
Find similar
China Eastern
25 Jan
PUS17:50Busan Gimhae
32h 40m
1 stop
LHR17:30London Heathrow
31 Jan
LHR21:00London Heathrow
34h 50m
1 stop
PUS16:50Busan Gimhae
£392
Find similar

Air China flights from South Korea to London Heathrow Airport

Our best Air China deals on South Korea to London Heathrow Airport flight tickets
Air China
2 Mar
ICN13:10Incheon Intl
35h 45m
1 stop
LHR15:55London Heathrow
12 Mar
LHR20:25London Heathrow
30h 15m
1 stop
ICN11:40Incheon Intl
£409
Find similar
Air China
26 Dec
ICN14:55Incheon Intl
37h 45m
1 stop
LHR19:40London Heathrow
3 Jan
LHR21:35London Heathrow
30h 20m
1 stop
ICN12:55Incheon Intl
£410
Find similar
Air China
13 May
PUS12:45Busan Gimhae
15h 40m
1 stop
LHR20:25London Heathrow
20 May
LHR22:40London Heathrow
29h 05m
1 stop
PUS11:45Busan Gimhae
£419
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from South Korea to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 21 December 2025.
Use the filters below to find and compare flights from South Korea to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Sun 25/1

18:55-17:30

1 stop31h 35m

London Heathrow

Sat 7/2

21:00-12:50

1 stop30h 50m

£388

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Mon 26/1

17:50-17:30

1 stop32h 40m

London Heathrow

Thu 29/1

21:00-11:35

1 stop29h 35m

£388

BusanLondon

PUS - LHR

PUSLHR

Busan Gimhae

Tue 20/1

17:50-17:30

1 stop32h 40m

London Heathrow

Thu 22/1

21:00-16:50

1 stop34h 50m

£391

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 20/1

20:50-17:30

1 stop29h 40m

London Heathrow

Sat 24/1

21:30-12:25

1 stop29h 55m

£407

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 19/1

14:55-20:15

1 stop38h 20m

London Heathrow

Fri 23/1

21:30-22:15

1 stop15h 45m

£408

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 2/3

13:10-15:55

1 stop35h 45m

London Heathrow

Thu 12/3

20:25-11:40

1 stop30h 15m

£409

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 1/4

14:25-20:25

1 stop14h 00m

London Heathrow

Wed 8/4

22:40-13:05

1 stop30h 25m

£419

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 25/2

13:30-17:55

1 stop37h 25m

London Heathrow

Thu 5/3

21:30-12:25

1 stop29h 55m

£422

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Mon 11/5

08:35-05:55

1 stop29h 20m

London Heathrow

Sat 16/5

22:05-07:15

1 stop25h 10m

£668

Jeju CityLondon

CJU - LHR

CJULHR

Jeju City

Mon 11/5

08:35-07:45

1 stop31h 10m

London Heathrow

Fri 15/5

22:05-07:15

1 stop25h 10m

£713

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from South Korea to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

In general, November is the cheapest month to fly from South Korea to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £528. The month of December is another great option to travel to London Heathrow Airport, with average flight prices from South Korea averaging around £555.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from South Korea is on a Friday. momondo users have found tickets for Friday departures for as low as £504. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £729.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from South Korea to London Heathrow Airport in the evening for as low as £507. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £798 on average. Flights to London Heathrow Airport from South Korea in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest South Korea to London Heathrow flight route?

Fly from Incheon Intl to London Heathrow for the best South Korea - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £647 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from South Korea for as low as £559 on momondo.

What cabin class options are available on South Korea to London Heathrow flights?

There are 4 cabin classes available to choose from on South Korea to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap South Korea to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Korea to London Heathrow Airport

Best price found

£442

Fastest flight time

14h 00m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from South Korea in the past 72 hours is £442. The best return flight deal from South Korea to London Heathrow Airport found on momondo in the last 72 hours is £485.
The fastest flight from South Korea to London Heathrow Airport takes 14h 00m
Direct flights go from South Korea to London Heathrow Airport every day.
Search flight deals

  • When did momondo last update prices for flights from South Korea to London Heathrow Airport?

    Prices for flights from South Korea to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from South Korea to London Heathrow Airport?

  • How old do you have to be to fly from South Korea to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Korea to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from South Korea to London Heathrow Airport?

Best airlines flying from South Korea to London Heathrow Airport

Compare and see reviews for airlines that fly from South Korea to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £355Free CancellationRating
7.2
179 reviews
Search China Eastern flights
Air ChinaPriceFrom £441Free CancellationRating
7.2
131 reviews
Search Air China flights
Asiana AirlinesPriceFrom £485Free CancellationRating
8.2
494 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £724Free CancellationRating
8.4
1,185 reviews
Search Korean Air flights

Travelling to a place near London?

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Why use momondo?

Why should I use momondo to find a flight deal from South Korea to London?

Finding the right flight to London from South Korea is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from South Korea to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from South Korea which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from South Korea to London?

Once you have performed a search for South Korea to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from South Korea to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from South Korea. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Heathrow Airport trip

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