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.

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

As of January 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 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 £346.

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 January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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 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 54% 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.

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 19h 05m. Keep in mind that layovers or delays could extend your travel time.

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 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.

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

China Eastern, Air China, and Lufthansa are the most popular carriers operating from Seoul to London

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 January 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.

£130 Cheap Flights from Seoul to London in 2026

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08:55 - 06:30

ICN

LGW

30h 35m

1 stop

10:30 - 20:45

LGW

ICN

25h 15m

1 stop

£319China Eastern

Tue, 10 Mar - Mon, 16 Mar

16:20 - 14:00

ICN

LGW

30h 40m

1 stop

10:30 - 11:55

LGW

ICN

16h 25m

1 stop

£320China Eastern

Sun, 15 Mar - Thu, 19 Mar

16:20 - 12:05

ICN

STN

28h 45m

2 stops

09:50 - 21:45

STN

ICN

26h 55m

2 stops

£368Multiple Airlines

Tue, 3 Mar - Sat, 7 Mar

13:30 - 17:55

GMP

LHR

37h 25m

1 stop

21:30 - 12:25

LHR

GMP

29h 55m

1 stop

£371China Southern

Thu, 12 Mar - Mon, 16 Mar

14:25 - 15:55

GMP

LHR

34h 30m

1 stop

20:25 - 13:05

LHR

GMP

31h 40m

1 stop

£403Air China

Mon, 9 Mar - Thu, 12 Mar

16:10 - 18:40

ICN

LTN

35h 30m

2 stops

08:30 - 21:45

LTN

ICN

28h 15m

2 stops

£403Multiple Airlines

Tue, 3 Mar - Sat, 7 Mar

13:30 - 17:55

GMP

LHR

37h 25m

1 stop

21:30 - 12:25

LHR

GMP

29h 55m

1 stop

£405China Southern

Thu, 12 Mar - Mon, 16 Mar

14:25 - 15:55

GMP

LHR

34h 30m

1 stop

20:25 - 13:05

LHR

GMP

31h 40m

1 stop

£408Air China

Mon, 9 Mar - Sun, 15 Mar

23:05 - 07:15

ICN

LCY

17h 10m

1 stop

17:05 - 16:55

LCY

ICN

14h 50m

1 stop

£553KLM

Thu, 19 Feb - Mon, 2 Mar

23:05 - 07:15

ICN

LCY

17h 10m

1 stop

17:05 - 16:55

LCY

ICN

14h 50m

1 stop

£563KLM

Thu, 26 Feb - Thu, 5 Mar

Air China flights from Seoul to London

Our best Air China deals on Seoul to London flight tickets

Air China

9 Mar

GMP14:25Seoul Gimpo Intl

34h 30m

1 stop

LHR15:55London Heathrow

12 Mar

LHR20:25London Heathrow

31h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£403

Air China

9 Mar

ICN14:40Incheon Intl

36h 15m

1 stop

LHR17:55London Heathrow

13 Mar

LHR17:40London Heathrow

33h 00m

1 stop

ICN11:40Incheon Intl

£404

Air China

6 Mar

GMP14:25Seoul Gimpo Intl

36h 25m

1 stop

LHR17:50London Heathrow

11 Mar

LHR17:40London Heathrow

34h 25m

1 stop

GMP13:05Seoul Gimpo Intl

£405

China Southern flights from Seoul to London

Our best China Southern deals on Seoul to London flight tickets

China Southern

12 Mar

GMP13:30Seoul Gimpo Intl

37h 25m

1 stop

LHR17:55London Heathrow

16 Mar

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£370

China Southern

12 Mar

GMP13:30Seoul Gimpo Intl

37h 25m

1 stop

LHR17:55London Heathrow

16 Mar

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£371

China Southern

2 Mar

ICN16:15Incheon Intl

35h 20m

1 stop

LHR18:35London Heathrow

11 Mar

LHR21:30London Heathrow

15h 45m

1 stop

ICN22:15Incheon Intl

£371

Fly from

Fly to

Route

Depart

Return

Price

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Tue 10/3

08:55-06:30

1 stop30h 35m

London Gatwick

Mon 16/3

10:30-20:45

1 stop25h 15m

£319

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Sun 15/3

16:20-14:00

1 stop30h 40m

London Gatwick

Thu 19/3

10:30-11:55

1 stop16h 25m

£320

IncheonLondon

ICN - STN

ICNSTN

Incheon Intl

Tue 3/3

16:20-12:05

2 stops28h 45m

London Stansted

Sat 7/3

09:50-21:45

2 stops26h 55m

£368

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 12/3

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 16/3

21:30-12:25

1 stop29h 55m

£371

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 9/3

14:25-15:55

1 stop34h 30m

London Heathrow

Thu 12/3

20:25-13:05

1 stop31h 40m

£403

IncheonLondon

ICN - LTN

ICNLTN

Incheon Intl

Tue 3/3

16:10-18:40

2 stops35h 30m

London Luton

Sat 7/3

08:30-21:45

2 stops28h 15m

£403

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 12/3

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 16/3

21:30-12:25

1 stop29h 55m

£405

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 9/3

14:25-15:55

1 stop34h 30m

London Heathrow

Sun 15/3

20:25-13:05

1 stop31h 40m

£408

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Thu 19/2

23:05-07:15

1 stop17h 10m

London City

Mon 2/3

17:05-16:55

1 stop14h 50m

£553

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Thu 26/2

23:05-07:15

1 stop17h 10m

London City

Thu 5/3

17:05-16:55

1 stop14h 50m

£563

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 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 £471, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Seoul averaging around £507.

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 £487. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £763.

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 £652 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 £547 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 19% 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 January 2026, prices for Seoul to London flights are approximately 11% 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	£463
Fastest flight time	14h 25m
Direct flights	Every day
Airports in London	6 airports

The best one-way flight to London from Seoul in the past 72 hours is £463. The best return flight deal from Seoul to London found on momondo in the last 72 hours is £868.

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

Direct flights go from Seoul to London every day.

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 January 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 52.87% of the total bookings. Other popular models include Airbus A350-900 with 36.66%, Boeing 787-9 Dreamliner with 8.36%, and Boeing 747-8 with 1.71%.
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 28% of the total bookings. Other popular airlines include Air China with 25%, Asiana Airlines with 18%, and Lufthansa with 16%.

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
China Eastern	PriceFrom £346	Free Cancellation	Rating 7.2 191 reviews	Search China Eastern flights
Air China	PriceFrom £430	Free Cancellation	Rating 7.2 138 reviews	Search Air China flights
Asiana Airlines	PriceFrom £473	Free Cancellation	Rating 8.1 501 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom £706	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 £706 round-trip, up to an average price of £802. 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, 501 ratings). Asiana Airlines flies from Seoul to London around 7 times per week, with deals starting from £473 round-trip and rising to an average price of around £548.

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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.

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Cheap flights from Seoul to London from £129

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 18/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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See travel insights to London from

How to get the cheapest flight ticket from Seoul to 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 £487. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £763.

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 19% 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 January 2026, prices for Seoul to London flights are approximately 11% cheaper when compared to flights at the same time last year.

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

China Eastern, Air China, and Lufthansa 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 £346.

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 January 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 January 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?

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