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 £535 to £642. The lowest price recently found on this route was £364.

Question 1

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

Accepted Answer

On average, the least expensive day to fly to London Heathrow Airport from Seoul is on a Friday. momondo users have found tickets for Friday departures for as low as £500. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £748.

Question 2

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

Accepted Answer

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

Question 3

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 4

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

Accepted Answer

As of December 2025, prices for Seoul to London Heathrow Airport flights are approximately 37% cheaper when compared to flights at the same time last year.

Question 5

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

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £535 to £642.
The lowest price recently found on this route was £364.

Question 6

Which stopover 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: 15h 25m.

Question 7

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 £508. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £801 on average. Flights to London Heathrow Airport from Seoul in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 8

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

Accepted Answer

In general, November is the cheapest month to fly from Seoul to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £529. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Seoul averaging around £551.

Question 9

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

Accepted Answer

Helsinki (HEL) has the shortest average stopover time for this route: 2h 15m.

Question 10

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 11

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

Accepted Answer

Helsinki (HEL) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Question 12

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

Accepted Answer

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.

Question 13

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 £648 when searching weeks before you fly. 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 £561 on momondo.

Question 14

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

Accepted Answer

As of December 2025, there are 3 flights per day flying from Seoul to London Heathrow Airport. The most common time of day flights depart is 10:00, with 66% of flights taking off at midday.

Question 15

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

Accepted Answer

If you’re flying from a popular airport in Seoul, such as Incheon or Seoul, and flying into London Heathrow Airport, then you can expect flight times to average 14h 30m and 29h 40m, respectively.

Question 16

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

Accepted Answer

Flights via Beijing (PEK) offer the lowest average return price of £521.

Question 17

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 December 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Question 18

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

Accepted Answer

There are 4 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 19

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 departing in the morning have, in the past, seen delays more frequently in comparison.

Question 20

Which airlines fly to London Heathrow Airport?

Accepted Answer

Asiana Airlines, China Eastern and Air China 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 52% of people opting to fly with this airline when travelling 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 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 refresh daily.

Question 22

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

Accepted Answer

As of December 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 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 Heathrow Airport.

Question 24

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

Accepted Answer

The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	£330
Fastest flight time	14h 30m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
China Eastern	PriceFrom £356	Free Cancellation	Rating 7.2 178 reviews	Search China Eastern flights
Air China	PriceFrom £443	Free Cancellation	Rating 7.2 127 reviews	Search Air China flights
Asiana Airlines	PriceFrom £487	Free Cancellation	Rating 8.2 490 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom £727	Free Cancellation	Rating 8.4 1,181 reviews	Search Korean Air flights

Cheap flights from Seoul to London from £121

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 22/12. 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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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

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?

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 4 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 December 2025, prices for Seoul to London Heathrow Airport flights are approximately 37% cheaper 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

Which 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 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 Heathrow Airport?

Helsinki (HEL) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Beijing (PEK) offer the lowest average return price of £521.

Which stopover 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: 15h 25m.

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

Helsinki (HEL) has the shortest average stopover time for this route: 2h 15m.

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

As of December 2025, there are 3 flights per day flying from Seoul to London Heathrow Airport. 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 Heathrow Airport on average per week?

The number of flights available between Seoul and London Heathrow Airport is 21 per week as of December 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?

If you’re flying from a popular airport in Seoul, such as Incheon or Seoul, and flying into London Heathrow Airport, then you can expect flight times to average 14h 30m and 29h 40m, respectively.

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?

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?

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