Question 1

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

Accepted Answer

Beijing (PEK) was the most common stop: 25% of momondo users choosing 1-stop flights on this route connected there.

Question 2

What is the cheapest Seoul to London Heathrow flight route?

Accepted Answer

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

Question 3

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

Accepted Answer

As of November 2025, prices for Seoul to London Heathrow Airport flights are approximately 35% cheaper when compared to flights at the same time last year.

Question 4

What airlines fly to London Heathrow Airport?

Accepted Answer

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 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.

Question 5

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

Accepted Answer

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 27h 20m.

Question 6

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

Accepted Answer

As of November 2025, 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 69% of flights taking off at noon.

Question 7

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

Accepted Answer

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

Question 8

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

Accepted Answer

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.

Question 9

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

Accepted Answer

The number of flights available between Seoul and London Heathrow Airport is 21 per week as of November 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Question 10

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

Accepted Answer

There are 2 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.

Question 11

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

Accepted Answer

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.

Question 12

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

Accepted Answer

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Seoul to London Heathrow Airport in the evening for as low as $977. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $1,017.

Question 13

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

Accepted Answer

Flights connecting via Beijing (PEK) have the shortest average one-way travel time: 14h 05m.

Question 14

How often are flights from Seoul to London delayed?

Accepted Answer

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.

Question 15

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

Accepted Answer

Flights via Warsaw (WAW) offer the lowest average round-trip price of $564.

Question 16

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

Accepted Answer

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 $865 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 $780 on momondo.

Question 17

Which airline has the best punctuality record on Seoul to London flights?

Accepted Answer

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

Our data shows that Saturday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $977. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,111.

Question 20

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

Accepted Answer

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Seoul, with most prices found around $737. If you’re not able to fly to London Heathrow Airport in January, then November is your next best option. Flight prices from Seoul to London Heathrow Airport during November average around $748.

Question 21

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

Accepted Answer

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

Question 22

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

Accepted Answer

As of November 2025, there are 4 operators available to choose from for flights from Seoul to London Heathrow Airport.

Question 23

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

Accepted Answer

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.

Question 24

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

Accepted Answer

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.

Best Price Found	$367
Fastest flight time	14h 30m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom $600	Free Cancellation	Rating 7.2 126 reviews	Search Air China flights
Asiana Airlines	PriceFrom $629	Free Cancellation	Rating 8.2 490 reviews	Search Asiana Airlines flights
Lufthansa	PriceFrom $754	Free Cancellation	Rating 6.8 7,594 reviews	Search Lufthansa flights
Korean Air	PriceFrom $847	Free Cancellation	Rating 8.4 1,172 reviews	Search Korean Air flights

Cheap flights from Seoul to London from $222

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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 Saturday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $977. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,111.

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

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 2 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 November 2025, prices for Seoul to London Heathrow Airport flights are approximately 35% cheaper when compared to flights at the same time last year.

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

Air China, China Eastern, and Malaysia Airlines 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 airline has the best punctuality record on Seoul to London flights?

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

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

Beijing (PEK) was the most common stop: 25% 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 Warsaw (WAW) offer the lowest average round-trip price of $564.

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 05m.

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 November 2025, 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 69% 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 November 2025. 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

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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?

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

Best airlines flying from Seoul to London Heathrow Airport

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