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

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

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

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

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

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

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 Heathrow Airport on average per week?

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

Which layover airport has the shortest travel time from Seoul to London Heathrow Airport?

Flights connecting via Beijing (PEK) have the shortest average one-way travel time: 14h 03m.

What airlines fly to London Heathrow Airport?

Asiana Airlines, Korean Air and Lufthansa are the top three most popular airlines that fly to London Heathrow Airport 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 traveling to London Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Seoul to London Heathrow Airport?

Abu Dhabi (AUH) has the shortest average layover time for this route: 1h 15m.

How long does it take to fly to London Heathrow Airport?

On average, it takes 14h to fly from Seoul to London Heathrow Airport if you fly out of Seoul (the most popular airport in Seoul) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Incheon and into London Heathrow Airport, then the flight time is around 14h 30m.

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

Monday is statistically the day of the week which experiences the fewest number of 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 layover for flights between Seoul and London Heathrow Airport?

Beijing (PEK) was the most common stop: 31% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seoul to London Heathrow Airport?

Flights via Shanghai (PVG) offer the lowest average round-trip price of $512.

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

Prices for flights from Seoul to London Heathrow Airport were last updated today.

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

As of January 2026, there are 4 operators available to choose from for flights from Seoul to London Heathrow Airport.

How old do you have to be to fly from Seoul 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 Seoul 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.

$175 Cheap Flights from Seoul to London Heathrow Airport in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $715 to $929. The lowest price recently found on this route was $464.

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8:55 am - 5:30 pm

ICN

LHR

17h 35m

1 stop

9:00 pm - 8:45 pm

LHR

ICN

14h 45m

1 stop

$464China Eastern

Thu, Mar 5 - Wed, Mar 11

4:20 pm - 5:30 pm

ICN

LHR

34h 10m

1 stop

9:00 pm - 1:30 pm

LHR

ICN

31h 30m

1 stop

$465China Eastern

Tue, Mar 3 - Mon, Mar 9

8:55 am - 5:30 pm

ICN

LHR

17h 35m

1 stop

9:00 pm - 8:45 pm

LHR

ICN

14h 45m

1 stop

$469China Eastern

Wed, Mar 4 - Mon, Mar 9

2:25 pm - 3:55 pm

GMP

LHR

34h 30m

1 stop

5:40 pm - 1:05 pm

LHR

GMP

34h 25m

1 stop

$563Air China

Wed, Mar 4 - Wed, Mar 11

1:30 pm - 5:55 pm

GMP

LHR

37h 25m

1 stop

9:30 pm - 12:25 pm

LHR

GMP

29h 55m

1 stop

$608China Southern

Wed, Mar 4 - Mon, Mar 9

2:25 pm - 5:50 pm

GMP

LHR

36h 25m

1 stop

8:25 pm - 1:05 pm

LHR

GMP

31h 40m

1 stop

$618Air China

Thu, Mar 5 - Thu, Mar 12

2:25 pm - 5:55 pm

GMP

LHR

36h 30m

1 stop

5:40 pm - 1:05 pm

LHR

GMP

34h 25m

1 stop

$706Air China

Sun, Mar 1 - Mon, Mar 9

1:25 pm - 6:05 pm

GMP

LHR

36h 40m

1 stop

9:00 pm - 12:25 pm

LHR

GMP

31h 25m

1 stop

$716China Southern

Tue, Jun 2 - Mon, Jun 15

1:25 pm - 6:05 pm

GMP

LHR

36h 40m

1 stop

9:00 pm - 12:25 pm

LHR

GMP

31h 25m

1 stop

$718China Southern

Sun, May 10 - Wed, Jun 10

2:25 pm - 3:55 pm

GMP

LHR

34h 30m

1 stop

8:25 pm - 1:05 pm

LHR

GMP

31h 40m

1 stop

$748Air China

Tue, Mar 3 - Tue, Mar 10

China Eastern flights from Seoul to London Heathrow Airport

Our best China Eastern deals on Seoul to London Heathrow Airport flight tickets

China Eastern

Mar 5

ICN8:55 amIncheon Intl

17h 35m

1 stop

LHR5:30 pmLondon Heathrow

Mar 11

LHR9:00 pmLondon Heathrow

14h 45m

1 stop

ICN8:45 pmIncheon Intl

$464

China Eastern

Mar 3

ICN4:20 pmIncheon Intl

34h 10m

1 stop

LHR5:30 pmLondon Heathrow

Mar 9

LHR9:00 pmLondon Heathrow

31h 30m

1 stop

ICN1:30 pmIncheon Intl

$465

China Eastern

Mar 4

ICN8:55 amIncheon Intl

17h 35m

1 stop

LHR5:30 pmLondon Heathrow

Mar 9

LHR9:00 pmLondon Heathrow

14h 45m

1 stop

ICN8:45 pmIncheon Intl

$469

Air China flights from Seoul to London Heathrow Airport

Our best Air China deals on Seoul to London Heathrow Airport flight tickets

Air China

Mar 4

GMP2:25 pmSeoul Gimpo Intl

34h 30m

1 stop

LHR3:55 pmLondon Heathrow

Mar 11

LHR5:40 pmLondon Heathrow

34h 25m

1 stop

GMP1:05 pmSeoul Gimpo Intl

$563

Air China

Mar 5

ICN1:10 pmIncheon Intl

35h 45m

1 stop

LHR3:55 pmLondon Heathrow

Mar 7

LHR5:40 pmLondon Heathrow

13h 55m

1 stop

ICN4:35 pmIncheon Intl

$618

Air China

Mar 4

ICN2:55 pmIncheon Intl

37h 45m

1 stop

LHR7:40 pmLondon Heathrow

Mar 7

LHR5:40 pmLondon Heathrow

13h 55m

1 stop

ICN4:35 pmIncheon Intl

$658

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 3/5

8:55 am-5:30 pm

1 stop17h 35m

London Heathrow

Wed 3/11

9:00 pm-8:45 pm

1 stop14h 45m

$464

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

4:20 pm-5:30 pm

1 stop34h 10m

London Heathrow

Mon 3/9

9:00 pm-1:30 pm

1 stop31h 30m

$465

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 3/4

8:55 am-5:30 pm

1 stop17h 35m

London Heathrow

Mon 3/9

9:00 pm-8:45 pm

1 stop14h 45m

$469

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 3/4

2:25 pm-3:55 pm

1 stop34h 30m

London Heathrow

Wed 3/11

5:40 pm-1:05 pm

1 stop34h 25m

$563

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 3/4

1:30 pm-5:55 pm

1 stop37h 25m

London Heathrow

Mon 3/9

9:30 pm-12:25 pm

1 stop29h 55m

$608

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 3/5

2:25 pm-5:50 pm

1 stop36h 25m

London Heathrow

Thu 3/12

8:25 pm-1:05 pm

1 stop31h 40m

$618

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 3/1

2:25 pm-5:55 pm

1 stop36h 30m

London Heathrow

Mon 3/9

5:40 pm-1:05 pm

1 stop34h 25m

$706

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 6/2

1:25 pm-6:05 pm

1 stop36h 40m

London Heathrow

Mon 6/15

9:00 pm-12:25 pm

1 stop31h 25m

$716

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 5/10

1:25 pm-6:05 pm

1 stop36h 40m

London Heathrow

Wed 6/10

9:00 pm-12:25 pm

1 stop31h 25m

$718

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 3/3

2:25 pm-3:55 pm

1 stop34h 30m

London Heathrow

Tue 3/10

8:25 pm-1:05 pm

1 stop31h 40m

$748

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seoul 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

Prices

Airlines

Delays

Layovers

Other information

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

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

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Seoul, with most prices found around $706. If you’re not able to fly to London Heathrow Airport in November, then December is your next best option. Flight prices from Seoul to London Heathrow Airport during December average around $742.

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

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $895. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,064.

What is the cheapest Seoul to London Heathrow flight route?

Fly from Incheon Intl to London Heathrow for the best Seoul - 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 Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $895 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Seoul for as low as $752 on momondo.

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

There are 3 cabin classes available to choose from on Seoul to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seoul to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Seoul to London Heathrow Airport flights are approximately 32% more expensive when compared to flights at the same time last year.

When to book flights from Seoul to London Heathrow Airport

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

Estimated round-trip price

Cheap Seoul to London Heathrow Airport (SEL to LHR) flight deals and tips

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

Best Price Found	$580
Fastest flight time	14h 00m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from Seoul in the past 72 hours is $580. The best round-trip flight deal from Seoul to London Heathrow Airport found on momondo in the last 72 hours is $763.

The fastest flight from Seoul to London Heathrow Airport takes 14h 00m

Direct flights go from Seoul to London Heathrow Airport every day.

Search flight deals

How far is Seoul to London Heathrow by plane?
A flight from Seoul to London Heathrow will travel around 5512.0 mi. In terms of flight time, this usually takes a little over 14h 00m.
When did momondo last update prices for flights from Seoul to London Heathrow Airport?
Prices for flights from Seoul to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Seoul to London Heathrow Airport?
As of January 2026, there are 4 operators available to choose from for flights from Seoul to London Heathrow Airport.
How old do you have to be to fly from Seoul 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 Seoul 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 Seoul to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Seoul to London Heathrow Airport is Boeing 777-300ER, representing 53.50% of all bookings. The subsequent popular models are Airbus A350-900 at 37.61%, Boeing 787-9 Dreamliner at 6.89%, and Boeing 747-8 at 1.59%.
What is the most popular airline from Seoul to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Seoul to London Heathrow Airport is Asiana Airlines, representing 64% of all bookings. The subsequent popular airline is Korean Air at 36%.

Best airlines flying from Seoul to London Heathrow Airport

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

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom $552	Free Cancellation	Rating 7.2 138 reviews	Search Air China flights
Asiana Airlines	PriceFrom $629	Free Cancellation	Rating 8.1 501 reviews	Search Asiana Airlines flights
Lufthansa	PriceFrom $754	Free Cancellation	Rating 6.8 7,736 reviews	Search Lufthansa flights
Korean Air	PriceFrom $847	Free Cancellation	Rating 8.4 1,187 reviews	Search Korean Air flights

Korean Air Flights From Seoul to London Heathrow Airport
The lowest priced Korean Air flight from Seoul to London Heathrow Airport from the last 72 hours was $847. Generally, Korean Air has 7 flights on this route every week with an average price of $1,179. Korean Air is rated 8.4/10 by our users.
Asiana Airlines Flights From Seoul to London Heathrow Airport
The best Asiana Airlines deal for Seoul to London Heathrow Airport flight tickets found on momondo in the last 72 hours was $629, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at $865 round-trip. Asiana Airlines operates 7 flights out of Seoul into London Heathrow Airport in an average week, so prices vary by time and availability. 502 Asiana Airlines reviews by users on momondo have scored the airline at 8.1/10.

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Crawley

Dartford

Hayes

Stratford-upon-Avon

Brentwood

Watford

Cobham

Folkestone

Romford

Stansted

Harrow

Croydon

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Seoul.

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

Yes. momondo allows you to filter the results for Seoul to London flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seoul to London.

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

If you are not ready to book a flight from Seoul to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Cheap flights from Seoul to London from $175

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 1/26. 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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China Eastern flights from Seoul to London Heathrow Airport

Our best China Eastern deals on Seoul to London Heathrow Airport flight tickets

Air China flights from Seoul to London Heathrow Airport

Our best Air China deals on Seoul to London Heathrow Airport flight tickets

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

See travel insights to London from

How to get the cheapest flight ticket from Seoul to London Heathrow Airport

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

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

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

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $895. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,064.

What is the cheapest Seoul to London Heathrow flight route?

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

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

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

There are 3 cabin classes available to choose from on Seoul to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seoul to London Heathrow Airport flight prices changed over time?

As of January 2026, prices for Seoul to London Heathrow Airport flights are approximately 32% more expensive when compared to flights at the same time last year.

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

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

What airlines fly to London Heathrow Airport?

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 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 which experiences the fewest number of 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 layover for flights between Seoul and London Heathrow Airport?

Beijing (PEK) was the most common stop: 31% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seoul to London Heathrow Airport?

Flights via Shanghai (PVG) offer the lowest average round-trip price of $512.

Which layover airport has the shortest travel time from Seoul to London Heathrow Airport?

Flights connecting via Beijing (PEK) have the shortest average one-way travel time: 14h 03m.

Which layover airport has the shortest connection time from Seoul to London Heathrow Airport?

Abu Dhabi (AUH) has the shortest average layover time for this route: 1h 15m.

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

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

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

The number of flights available between Seoul and London Heathrow Airport 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 Heathrow Airport?

When to book flights from Seoul to London Heathrow Airport

Cheap Seoul to London Heathrow Airport (SEL to LHR) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

How far is Seoul to London Heathrow by plane?

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

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

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

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

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

What is the most popular airline from Seoul to London Heathrow Airport?

Best airlines flying from Seoul to London Heathrow Airport

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

Korean Air Flights From Seoul to London Heathrow Airport

Asiana Airlines Flights From Seoul to London Heathrow Airport

Traveling 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?

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

An easier way to manage your London Heathrow Airport trip