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Cheap flights from Seoul to London from £165

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 3/11. 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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Find the cheapest flights from Seoul to London (SEL-LHR)

Cheap return flights

Scandinavian Airlines Logo
23:45 - 16:25ICN-LHR
25h 40m2 stops
Scandinavian Airlines Logo
10:20 - 19:00LHR-ICN
23h 40m1 stop
£350Scandinavian Airlines
Find Deal
Fri, 28 Nov - Sun, 30 Nov
Scandinavian Airlines Logo
23:45 - 16:25ICN-LHR
25h 40m2 stops
Scandinavian Airlines Logo
15:35 - 19:00LHR-ICN
18h 25m2 stops
£350Scandinavian Airlines
Find Deal
Fri, 28 Nov - Sun, 30 Nov
Scandinavian Airlines Logo
23:45 - 18:30ICN-LHR
27h 45m2 stops
Scandinavian Airlines Logo
13:55 - 19:00LHR-ICN
20h 05m2 stops
£370Scandinavian Airlines
Find Deal
Fri, 7 Nov - Sun, 9 Nov
Logo
08:55 - 17:30ICN-LHR
17h 35m1 stop
Logo
06:35 - 09:05LHR-ICN
17h 30m1 stop
£394
Find Deal
Sun, 14 Dec - Thu, 25 Dec
Scandinavian Airlines Logo
23:45 - 16:00ICN-LHR
25h 15m1 stop
Scandinavian Airlines Logo
13:55 - 19:00LHR-ICN
20h 05m2 stops
£395Scandinavian Airlines
Find Deal
Fri, 28 Nov - Sun, 30 Nov
Scandinavian Airlines Logo
23:45 - 12:55ICN-LHR
22h 10m2 stops
Scandinavian Airlines Logo
10:20 - 19:00LHR-ICN
23h 40m1 stop
£395Scandinavian Airlines
Find Deal
Fri, 16 Jan - Sun, 18 Jan
Scandinavian Airlines Logo
23:45 - 12:55ICN-LHR
22h 10m2 stops
Scandinavian Airlines Logo
10:35 - 19:00LHR-ICN
23h 25m2 stops
£396Scandinavian Airlines
Find Deal
Fri, 28 Nov - Sun, 30 Nov
China Southern Logo
13:45 - 17:55GMP-LHR
37h 10m1 stop
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
£414China Southern
Find Deal
Sun, 23 Nov - Sat, 29 Nov
China Southern Logo
10:55 - 18:15ICN-LHR
40h 20m1 stop
China Southern Logo
22:00 - 20:35LHR-ICN
37h 35m1 stop
£414China Southern
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Tue, 25 Nov - Sun, 30 Nov
China Southern Logo
13:30 - 18:05GMP-LHR
36h 35m1 stop
China Southern Logo
21:30 - 12:25LHR-GMP
29h 55m1 stop
£415China Southern
Find Deal
Mon, 20 Oct - Mon, 27 Oct

China Southern flights from Seoul to London Heathrow Airport

Our best China Southern deals on Seoul to London Heathrow Airport flight tickets
China Southern
23 Nov
GMP13:45Seoul Gimpo Intl
37h 10m
1 stop
LHR17:55London Heathrow
29 Nov
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
£414
Find similar
China Southern
25 Nov
ICN10:55Incheon Intl
40h 20m
1 stop
LHR18:15London Heathrow
30 Nov
LHR22:00London Heathrow
37h 35m
1 stop
ICN20:35Incheon Intl
£414
Find similar
China Southern
20 Oct
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
27 Oct
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
£415
Find similar

Scandinavian Airlines flights from Seoul to London Heathrow Airport

Our best Scandinavian Airlines deals on Seoul to London Heathrow Airport flight tickets
Scandinavian Airlines
28 Nov
ICN23:45Incheon Intl
25h 40m
2 stops
LHR16:25London Heathrow
30 Nov
LHR10:20London Heathrow
23h 40m
1 stop
ICN19:00Incheon Intl
£350
Find similar
Scandinavian Airlines
28 Nov
ICN23:45Incheon Intl
25h 40m
2 stops
LHR16:25London Heathrow
30 Nov
LHR15:35London Heathrow
18h 25m
2 stops
ICN19:00Incheon Intl
£350
Find similar
Scandinavian Airlines
7 Nov
ICN23:45Incheon Intl
27h 45m
2 stops
LHR18:30London Heathrow
9 Nov
LHR13:55London Heathrow
20h 05m
2 stops
ICN19:00Incheon Intl
£370
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seoul to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 15 August 2025.
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

Fri 28/11

23:45-16:25

2 stops25h 40m

London Heathrow

Sun 30/11

10:20-19:00

1 stop23h 40m

£350

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 28/11

23:45-16:25

2 stops25h 40m

London Heathrow

Sun 30/11

15:35-19:00

2 stops18h 25m

£350

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 7/11

23:45-18:30

2 stops27h 45m

London Heathrow

Sun 9/11

13:55-19:00

2 stops20h 05m

£370

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 14/12

08:55-17:30

1 stop17h 35m

London Heathrow

Thu 25/12

06:35-09:05

1 stop17h 30m

£394

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 28/11

23:45-16:00

1 stop25h 15m

London Heathrow

Sun 30/11

13:55-19:00

2 stops20h 05m

£395

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 16/1

23:45-12:55

2 stops22h 10m

London Heathrow

Sun 18/1

10:20-19:00

1 stop23h 40m

£395

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 28/11

23:45-12:55

2 stops22h 10m

London Heathrow

Sun 30/11

10:35-19:00

2 stops23h 25m

£396

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 23/11

13:45-17:55

1 stop37h 10m

London Heathrow

Sat 29/11

21:30-12:25

1 stop29h 55m

£414

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 25/11

10:55-18:15

1 stop40h 20m

London Heathrow

Sun 30/11

22:00-20:35

1 stop37h 35m

£414

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 20/10

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 27/10

21:30-12:25

1 stop29h 55m

£415

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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 cheapest month to fly to London Heathrow Airport?

In general, March 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 £515. The month of December is another great option to travel to London Heathrow Airport, with average flight prices from Seoul averaging around £552.

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

On average, the least expensive day to fly to London Heathrow Airport from Seoul is on a Monday. momondo users have found tickets for Monday departures for as low as £670. 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 £844.

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

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 £500. 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 at midday when prices are £818 on average. Flights to London Heathrow Airport from Seoul at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £634 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 £542 on momondo.

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 August 2025, prices for Seoul to London Heathrow Airport flights are approximately 13% cheaper 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 return 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

£165

Fastest flight time

14h 05m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Seoul in the past 72 hours is £165. The best return flight deal from Seoul to London Heathrow Airport found on momondo in the last 72 hours is £350.
The fastest flight from Seoul to London Heathrow Airport takes 14h 05m
Direct flights go from Seoul to London Heathrow Airport every day.
Search flight deals

  • How far is Seoul to London Heathrow by plane?

    The distance between Seoul and London Heathrow is about 5512.0 mi. By plane, this route typically takes 16h 40m.

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

    Prices for flights from Seoul to London Heathrow Airport refresh daily.

  • 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?

    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.

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

    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.

  • 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
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £350Free CancellationRating
7.2
160 reviews
Search China Eastern flights
FinnairPriceFrom £555Free CancellationRating
7.6
1,321 reviews
Search Finnair flights
Asiana AirlinesPriceFrom £641Free CancellationRating
8.2
473 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £665Free CancellationRating
8.4
1,131 reviews
Search Korean Air flights

  • Korean Air Flights From Seoul to London Heathrow Airport

    Korean Air operates around 7 flights from Seoul to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £1,136, but momondo users have found Korean Air deals from Seoul to London Heathrow Airport from as low as £901 round-trip. Korean Air has been scored 8.4/10 in 1,131 reviews.

  • 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 £869, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £1,002 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. 473 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Seoul with this policy.

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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