How often are flights from Seoul to London delayed?

Historically, on average around 0% of flights between Seoul and London have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

What is the most punctual flight time for Seoul to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

How long does it take to fly to London?

Flight times from Seoul to London vary, but if you’re flying out of Incheon and flying into London Heathrow Airport (one of the most popular routes), then the duration is 14h 25m on average. Another popular route from Seoul to London is flying from Seoul to London Heathrow Airport, which will take roughly 20h 20m. Keep in mind that layovers or delays could extend your travel time.

Which stopover airport offers the lowest fares from Seoul to London?

Flights via Guangzhou (CAN) offer the lowest average return price of £347.

Which stopover airport has the shortest travel time from Seoul to London?

Flights connecting via Beijing (PEK) have the shortest average one-way travel time: 15h 25m.

How many flights depart from Seoul to London on average per day?

As of February 2026, there are 3 flights per day flying from Seoul to London. The most common time of day flights depart is 10:00, with 66% of flights taking off at midday.

Which stopover airport has the shortest connection time from Seoul to London?

Warsaw (WAW) has the shortest average stopover time for this route: 1h 45m.

Which airport is the most popular for stopovers for flights between Seoul and London?

Beijing (PEK) was the most common stop: 19% of momondo users choosing one-stop flights on this route connected there.

What is the cheapest airline that flies from Seoul to London?

China Eastern, China Southern, and Shenzhen Airlines are the most popular carriers operating from Seoul to London

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Seoul to London on average per week?

The number of flights available between Seoul and London is 21 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Which airlines fly to London?

Asiana Airlines, Air China and Korean Air are the top three most popular airlines that fly to London from Seoul according to our data. Asiana Airlines is the first choice among our users, with 56% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seoul to London?

Prices for flights from Seoul to London refresh daily.

How many operators does momondo search for flights from Seoul to London?

The number of operators available for flights from Seoul to London is 4 as of February 2026.

How old do you have to be to fly from Seoul to London?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to London.

What documentation or ID do you need to fly to London?

The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£131 Cheap Flights from Seoul to London in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seoul to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

16:20 - 14:00

ICN

LGW

30h 40m

1 stop

17:00 - 11:55

LGW

ICN

33h 55m

1 stop

£321China Eastern

Tue, 3 Mar - Sat, 7 Mar

08:55 - 06:30

ICN

LGW

30h 35m

1 stop

17:00 - 11:55

LGW

ICN

33h 55m

1 stop

£321China Eastern

Sat, 7 Mar - Sat, 14 Mar

09:25 - 18:35

ICN

LHR

18h 10m

1 stop

22:00 - 21:50

LHR

ICN

38h 50m

1 stop

£345China Southern

Wed, 4 Mar - Sun, 8 Mar

09:25 - 18:35

ICN

LHR

18h 10m

1 stop

22:00 - 13:50

LHR

ICN

30h 50m

1 stop

£347China Southern

Wed, 4 Mar - Mon, 9 Mar

16:10 - 12:05

ICN

STN

28h 55m

2 stops

09:50 - 21:45

STN

ICN

26h 55m

3 stops

£364Multiple Airlines

Thu, 12 Mar - Sat, 14 Mar

18:25 - 12:05

ICN

STN

26h 40m

2 stops

06:10 - 15:05

STN

ICN

23h 55m

2 stops

£366Multiple Airlines

Mon, 2 Mar - Mon, 9 Mar

23:05 - 09:30

ICN

LCY

19h 25m

1 stop

17:05 - 16:55

LCY

ICN

14h 50m

1 stop

£577KLM

Tue, 3 Mar - Tue, 10 Mar

23:05 - 07:15

ICN

LCY

17h 10m

1 stop

17:50 - 16:55

LCY

ICN

14h 05m

1 stop

£578KLM

Tue, 3 Mar - Wed, 11 Mar

14:25 - 06:35

GMP

LGW

24h 10m

1 stop

12:35 - 13:05

LGW

GMP

16h 30m

1 stop

£605Air China

Thu, 11 Jun - Sat, 20 Jun

14:25 - 06:35

GMP

LGW

24h 10m

1 stop

12:35 - 13:05

LGW

GMP

16h 30m

1 stop

£607Air China

Fri, 3 Apr - Mon, 20 Apr

China Southern flights from Seoul to London

Our best China Southern deals on Seoul to London flight tickets

China Southern

4 Mar

ICN09:25Incheon Intl

18h 10m

1 stop

LHR18:35London Heathrow

8 Mar

LHR22:00London Heathrow

38h 50m

1 stop

ICN21:50Incheon Intl

£345

China Southern

4 Mar

ICN09:25Incheon Intl

18h 10m

1 stop

LHR18:35London Heathrow

9 Mar

LHR22:00London Heathrow

30h 50m

1 stop

ICN13:50Incheon Intl

£347

China Southern

7 Jun

ICN15:15Incheon Intl

35h 45m

1 stop

LHR19:00London Heathrow

16 Jun

LHR22:10London Heathrow

31h 45m

1 stop

ICN13:55Incheon Intl

£361

Air China flights from Seoul to London

Our best Air China deals on Seoul to London flight tickets

Air China

29 Mar

ICN15:30Incheon Intl

23h 15m

1 stop

LGW06:45London Gatwick

9 Apr

LGW12:35London Gatwick

25h 25m

1 stop

ICN22:00Incheon Intl

£418

Air China

3 Mar

GMP14:25Seoul Gimpo Intl

34h 30m

1 stop

LHR15:55London Heathrow

6 Mar

LHR20:25London Heathrow

31h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£491

Air China

6 Mar

GMP14:25Seoul Gimpo Intl

34h 30m

1 stop

LHR15:55London Heathrow

11 Mar

LHR20:25London Heathrow

31h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£494

Fly from

Fly to

Route

Depart

Return

Price

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Tue 3/3

16:20-14:00

1 stop30h 40m

London Gatwick

Sat 7/3

17:00-11:55

1 stop33h 55m

£321

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Sat 7/3

08:55-06:30

1 stop30h 35m

London Gatwick

Sat 14/3

17:00-11:55

1 stop33h 55m

£321

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 4/3

09:25-18:35

1 stop18h 10m

London Heathrow

Sun 8/3

22:00-21:50

1 stop38h 50m

£345

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 4/3

09:25-18:35

1 stop18h 10m

London Heathrow

Mon 9/3

22:00-13:50

1 stop30h 50m

£347

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Thu 12/3

16:10-12:05

2 stops28h 55m

London Stansted

Sat 14/3

09:50-21:45

3 stops26h 55m

£364

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Mon 2/3

18:25-12:05

2 stops26h 40m

London Stansted

Mon 9/3

06:10-15:05

2 stops23h 55m

£366

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Tue 3/3

23:05-09:30

1 stop19h 25m

London City

Tue 10/3

17:05-16:55

1 stop14h 50m

£577

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Tue 3/3

23:05-07:15

1 stop17h 10m

London City

Wed 11/3

17:50-16:55

1 stop14h 05m

£578

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Thu 11/6

14:25-06:35

1 stop24h 10m

London Gatwick

Sat 20/6

12:35-13:05

1 stop16h 30m

£605

SeoulLondon

GMP - LGW

GMPLGW

Seoul Gimpo Intl

Fri 3/4

14:25-06:35

1 stop24h 10m

London Gatwick

Mon 20/4

12:35-13:05

1 stop16h 30m

£607

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seoul to London

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

Prices

Airlines

Delays

Stopovers

Other information

What is the typical price of a round-trip flight between Seoul and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Seoul is in June. Flight prices, which tend to average around £472, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Seoul averaging around £473.

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

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £489. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £732.

What is the cheapest Seoul to London flight route?

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

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

You are more likely to see cheaper flights to London from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £654 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Seoul for as low as £566 on momondo.

What cabin class options are available on Seoul to London flights?

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

Can stopping save me money on Seoul to London flights?

You could potentially save up to 20% on your flight if you consider stops on a Seoul to London flight.

How have Seoul to London flight prices changed over time?

As of February 2026, prices for Seoul to London flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to London

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Seoul to London (SEL to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to London

Best price found	£438
Fastest flight time	14h 25m
Direct flights	Tue, Wed, Thu, Fri, Sat and Sun
Airports in London	6 airports

The best one-way flight to London from Seoul in the past 72 hours is £438. The best return flight deal from Seoul to London found on momondo in the last 72 hours is £561.

The fastest flight from Seoul to London takes 14h 25m

Direct flights go from Seoul to London on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Airline offering direct flights is Virgin Atlantic..

There are 6 airports in London. From Seoul there are direct flights to London Heathrow (LHR).

Search flight deals

How far is Seoul to London by plane?
Seoul and London are 5501.4 mi apart from one another. Flights usually cover this in 14h 25m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seoul to London?
Prices for flights from Seoul to London refresh daily.
How many operators does momondo search for flights from Seoul to London?
The number of operators available for flights from Seoul to London is 4 as of February 2026.
How old do you have to be to fly from Seoul to London?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seoul to London?
Based on momondo bookings for flights between Seoul and London, the leading plane model is Boeing 777-300ER, making up 49.95% of the total bookings. Other popular models include Airbus A350-900 with 34.38%, Boeing 787-9 Dreamliner with 11.34%, and Boeing 747-8 with 3.96%.
What is the most popular airline from Seoul to London?
Based on momondo bookings for flights between Seoul and London, the leading airline is China Eastern, making up 29% of the total bookings. Other popular airlines include Air China with 25%, Asiana Airlines with 18%, and Lufthansa with 15%.

Best airlines flying from Seoul to London

Compare and see reviews for airlines that fly from Seoul to London with momondo

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom £431	Free Cancellation	Rating 7.2 138 reviews	Search Air China flights
China Eastern	PriceFrom £462	Free Cancellation	Rating 7.2 192 reviews	Search China Eastern flights
Asiana Airlines	PriceFrom £474	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom £708	Free Cancellation	Rating 8.4 1,188 reviews	Search Korean Air flights

Korean Air Flights From Seoul to London
Korean Air is one of the most popular airlines flying from Seoul to London, operating 7 flights/week on average for this route. A good Korean Air flight deal for Seoul to London starts from £708 round-trip, up to an average price of £805. Our users have rated Korean Air at 8.4/10.
Asiana Airlines Flights From Seoul to London
Another popular option for Seoul to London flights is Asiana Airlines (8.1/10, 502 ratings). Asiana Airlines flies from Seoul to London around 7 times per week, with deals starting from £474 round-trip and rising to an average price of around £549.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Dover

Folkestone

Worthing

Colchester

Bedford

Ramsgate

Chichester

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to London from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seoul to London?

Once all potential Seoul to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Seoul to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 4/3

Wed 11/3

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

London Stansted Airport

Popular Cities in the United Kingdom

Flights to Manchesterfrom £31

Flights to Birminghamfrom £34

Flights to Edinburghfrom £31

Flights to Belfastfrom £27

Flights to Glasgowfrom £31

Flights to Bristolfrom £30

Flights to Newcastle upon Tynefrom £31

Flights to Liverpoolfrom £32

Flights to Aberdeenfrom £37

Flights to Leedsfrom £39

Flights to Invernessfrom £37

Flights to Newquayfrom £34

Cheap flights from Seoul to London from £130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to London departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seoul to London

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

China Southern flights from Seoul to London

Our best China Southern deals on Seoul to London flight tickets

Air China flights from Seoul to London

Our best Air China deals on Seoul to London flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seoul to London that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Seoul to London

What is the typical price of a round-trip flight between Seoul and London?

What is the cheapest month to fly to London?

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

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £489. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £732.

What is the cheapest Seoul to London flight route?

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

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

What cabin class options are available on Seoul to London flights?

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

Can stopping save me money on Seoul to London flights?

You could potentially save up to 20% on your flight if you consider stops on a Seoul to London flight.

How have Seoul to London flight prices changed over time?

As of February 2026, prices for Seoul to London flights are approximately 14% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Seoul to London?

China Eastern, China Southern, and Shenzhen Airlines are the most popular carriers operating from Seoul to London

Which airlines fly to London?

How often are flights from Seoul to London delayed?

Historically, on average around 0% of flights between Seoul and London have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

What is the most punctual flight time for Seoul to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airport is the most popular for stopovers for flights between Seoul and London?

Beijing (PEK) was the most common stop: 19% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from Seoul to London?

Flights via Guangzhou (CAN) offer the lowest average return price of £347.

Which stopover airport has the shortest travel time from Seoul to London?

Flights connecting via Beijing (PEK) have the shortest average one-way travel time: 15h 25m.

Which stopover airport has the shortest connection time from Seoul to London?

Warsaw (WAW) has the shortest average stopover time for this route: 1h 45m.

How many flights depart from Seoul to London on average per day?

As of February 2026, there are 3 flights per day flying from Seoul to London. The most common time of day flights depart is 10:00, with 66% of flights taking off at midday.

How many flights depart from Seoul to London on average per week?

The number of flights available between Seoul and London is 21 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

How long does it take to fly to London?

When to book flights from Seoul to London

Cheap Seoul to London (SEL to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to London

Best price found

Fastest flight time

Direct flights

Airports in London

How far is Seoul to London by plane?

When did momondo last update prices for flights from Seoul to London?

How many operators does momondo search for flights from Seoul to London?

How old do you have to be to fly from Seoul to London?

What documentation or ID do you need to fly to London?

What is the most popular plane model from Seoul to London?

What is the most popular airline from Seoul to London?

Best airlines flying from Seoul to London

Compare and see reviews for airlines that fly from Seoul to London with momondo

Korean Air Flights From Seoul to London

Asiana Airlines Flights From Seoul to London

Travelling to a place near London?

Why use momondo?

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

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