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.

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.

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.

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

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

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.

What airlines fly to London Heathrow Airport?

Asiana Airlines, Lufthansa and Korean Air 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 53% 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.

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 long does it take to fly to London Heathrow Airport?

On average, it takes 14h 30m to fly from Seoul to London Heathrow Airport if you fly out of Incheon (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 Seoul and into London Heathrow Airport, then the flight time is around 28h 35m.

Which airport is the most popular layover for flights between Seoul and London Heathrow Airport?

Beijing (PEK) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

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

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

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 February 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.

$178 Cheap Flights from Seoul to London Heathrow Airport in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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 round-trip flights

Enter your travel dates to find the best prices.

6:25 pm - 5:30 pm

ICN

LHR

32h 05m

1 stop

9:00 pm - 8:45 pm

LHR

ICN

14h 45m

1 stop

$483China Eastern

Tue, Mar 3 - Tue, Mar 10

6:25 pm - 5:30 pm

ICN

LHR

32h 05m

1 stop

9:00 pm - 8:45 pm

LHR

ICN

14h 45m

1 stop

$488China Eastern

Mon, Mar 2 - Sun, Mar 8

4:20 pm - 5:30 pm

ICN

LHR

34h 10m

1 stop

9:00 pm - 1:30 pm

LHR

ICN

31h 30m

1 stop

$490China Eastern

Mon, Mar 2 - Wed, Mar 11

1:25 pm - 6:05 pm

GMP

LHR

36h 40m

1 stop

9:00 pm - 12:25 pm

LHR

GMP

31h 25m

1 stop

$521China Southern

Tue, Jun 2 - Mon, Jun 15

3:15 pm - 7:00 pm

ICN

LHR

35h 45m

1 stop

10:10 pm - 3:25 pm

LHR

ICN

33h 15m

1 stop

$525China Southern

Thu, May 21 - Sun, May 31

1:25 pm - 6:05 pm

GMP

LHR

36h 40m

1 stop

9:00 pm - 12:25 pm

LHR

GMP

31h 25m

1 stop

$525China Southern

Tue, Jun 2 - Mon, Jun 15

4:45 pm - 7:10 pm

ICN

LHR

35h 25m

1 stop

9:10 pm - 3:45 pm

LHR

ICN

33h 35m

1 stop

$565Shenzhen Airlines

Tue, Mar 3 - Sun, Mar 8

3:15 pm - 8:00 pm

ICN

LHR

36h 45m

1 stop

10:05 pm - 2:15 pm

LHR

ICN

32h 10m

1 stop

$578Shenzhen Airlines

Thu, May 7 - Sun, May 17

2:25 pm - 3:55 pm

GMP

LHR

34h 30m

1 stop

8:25 pm - 1:05 pm

LHR

GMP

31h 40m

1 stop

$686Air China

Tue, Mar 3 - Tue, Mar 10

2:25 pm - 3:55 pm

GMP

LHR

34h 30m

1 stop

5:40 pm - 1:05 pm

LHR

GMP

34h 25m

1 stop

$707Air China

Mon, Mar 2 - Sun, Mar 8

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 3

ICN6:25 pmIncheon Intl

32h 05m

1 stop

LHR5:30 pmLondon Heathrow

Mar 10

LHR9:00 pmLondon Heathrow

14h 45m

1 stop

ICN8:45 pmIncheon Intl

$483

China Eastern

Mar 2

ICN6:25 pmIncheon Intl

32h 05m

1 stop

LHR5:30 pmLondon Heathrow

Mar 8

LHR9:00 pmLondon Heathrow

14h 45m

1 stop

ICN8:45 pmIncheon Intl

$488

China Eastern

Mar 2

ICN4:20 pmIncheon Intl

34h 10m

1 stop

LHR5:30 pmLondon Heathrow

Mar 11

LHR9:00 pmLondon Heathrow

31h 30m

1 stop

ICN1:30 pmIncheon Intl

$490

Shenzhen Airlines flights from Seoul to London Heathrow Airport

Our best Shenzhen Airlines deals on Seoul to London Heathrow Airport flight tickets

Shenzhen Airlines

Mar 3

ICN4:45 pmIncheon Intl

35h 25m

1 stop

LHR7:10 pmLondon Heathrow

Mar 8

LHR9:10 pmLondon Heathrow

33h 35m

1 stop

ICN3:45 pmIncheon Intl

$565

Shenzhen Airlines

May 7

ICN3:15 pmIncheon Intl

36h 45m

1 stop

LHR8:00 pmLondon Heathrow

May 17

LHR10:05 pmLondon Heathrow

32h 10m

1 stop

ICN2:15 pmIncheon Intl

$578

Shenzhen Airlines

May 8

ICN4:50 pmIncheon Intl

35h 00m

1 stop

LHR7:50 pmLondon Heathrow

May 16

LHR10:05 pmLondon Heathrow

32h 10m

1 stop

ICN2:15 pmIncheon Intl

$582

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

Tue 3/3

6:25 pm-5:30 pm

1 stop32h 05m

London Heathrow

Tue 3/10

9:00 pm-8:45 pm

1 stop14h 45m

$483

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 3/2

6:25 pm-5:30 pm

1 stop32h 05m

London Heathrow

Sun 3/8

9:00 pm-8:45 pm

1 stop14h 45m

$488

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 3/2

4:20 pm-5:30 pm

1 stop34h 10m

London Heathrow

Wed 3/11

9:00 pm-1:30 pm

1 stop31h 30m

$490

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

$521

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 5/21

3:15 pm-7:00 pm

1 stop35h 45m

London Heathrow

Sun 5/31

10:10 pm-3:25 pm

1 stop33h 15m

$525

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

$525

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

4:45 pm-7:10 pm

1 stop35h 25m

London Heathrow

Sun 3/8

9:10 pm-3:45 pm

1 stop33h 35m

$565

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 5/7

3:15 pm-8:00 pm

1 stop36h 45m

London Heathrow

Sun 5/17

10:05 pm-2:15 pm

1 stop32h 10m

$578

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

$686

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 3/2

2:25 pm-3:55 pm

1 stop34h 30m

London Heathrow

Sun 3/8

5:40 pm-1:05 pm

1 stop34h 25m

$707

Flights are sorted by cheapest round-trip flights first.

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 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 $875. 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 $896 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 $775 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 February 2026, prices for Seoul to London Heathrow Airport flights are approximately 39% 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 30m
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 $776.

The fastest flight from Seoul to London Heathrow Airport takes 14h 30m

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 30m.
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 February 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 49.95% of all bookings. The subsequent popular models are Airbus A350-900 at 34.38%, Boeing 787-9 Dreamliner at 11.34%, and Boeing 747-8 at 3.96%.
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 67% of all bookings. The subsequent popular airline is Korean Air at 33%.

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 $600	Free Cancellation	Rating 7.2 138 reviews	Search Air China flights
Asiana Airlines	PriceFrom $629	Free Cancellation	Rating 8.1 502 reviews	Search Asiana Airlines flights
Lufthansa	PriceFrom $754	Free Cancellation	Rating 6.8 7,758 reviews	Search Lufthansa flights
Korean Air	PriceFrom $847	Free Cancellation	Rating 8.4 1,188 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 $840 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.

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Guildford

Crawley

Wembley

Dartford

Stratford-upon-Avon

Hayes

Croydon

Brentwood

Harrow

Watford

Cobham

Folkestone

Romford

Stansted

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.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize 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

Thu 3/5

Thu 3/12

Email me momondo's favorite deals

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

Find better results for your trip to London

Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $333

Flights to London City Airportfrom $440

Flights to London Stansted Airportfrom $323

Flights to London Luton Airportfrom $338

Flights to Glasgow Intl Airportfrom $394

Flights to Belfast Intl Airportfrom $470

Flights to London Southend Airportfrom $431

Flights to Belfast City Airportfrom $470

Cheap flights from Seoul to London from $178

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 and deals

Big names and 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 round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

China Eastern flights from Seoul to London Heathrow Airport

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

Shenzhen Airlines flights from Seoul to London Heathrow Airport

Our best Shenzhen Airlines deals on Seoul to London Heathrow Airport flight tickets

momondo Fare Finder

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 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 $875. 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 February 2026, prices for Seoul to London Heathrow Airport flights are approximately 39% 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 Southern, Shenzhen Airlines, and China Eastern 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: 36% 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 February 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 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 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

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