Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Seoul from $367

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Seoul departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Seoul

Cheap round-trip flights

China Southern Logo
9:30 pm - 12:25 pmLHR-GMP
29h 55m1 stop
China Southern Logo
1:45 pm - 5:55 pmGMP-LHR
37h 10m1 stop
$511China Southern
Find Deal
Tue, Nov 25 - Sun, Nov 30
China Southern Logo
9:30 pm - 10:25 pmLHR-ICN
15h 55m1 stop
China Southern Logo
10:55 am - 6:15 pmICN-LHR
40h 20m1 stop
$511China Southern
Find Deal
Tue, Nov 25 - Sun, Nov 30
Lufthansa Logo
8:45 am - 11:15 amLHR-ICN
17h 30m1 stop
Lufthansa Logo
1:30 pm - 10:55 pmICN-LHR
18h 25m1 stop
$546Lufthansa
Find Deal
Thu, Nov 20 - Fri, Feb 27
Lufthansa Logo
4:40 pm - 11:15 amLHR-ICN
33h 35m1 stop
Lufthansa Logo
1:30 pm - 10:55 pmICN-LHR
18h 25m1 stop
$547Lufthansa
Find Deal
Mon, Jan 5 - Wed, Feb 18
Shenzhen Airlines Logo
10:05 pm - 1:40 pmLHR-ICN
31h 35m1 stop
Shenzhen Airlines Logo
2:40 pm - 7:50 pmICN-LHR
37h 10m1 stop
$594Shenzhen Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 28
Shenzhen Airlines Logo
10:05 pm - 3:40 pmLHR-ICN
33h 35m1 stop
Shenzhen Airlines Logo
2:55 pm - 7:10 pmICN-LHR
37h 15m1 stop
$611Shenzhen Airlines
Find Deal
Wed, Oct 22 - Sat, Nov 15
Air China Logo
10:40 pm - 1:05 pmLHR-GMP
30h 25m1 stop
Air China Logo
2:25 pm - 8:30 pmGMP-LHR
14h 05m1 stop
$645Air China
Find Deal
Wed, Sep 10 - Fri, Oct 10
Air China Logo
8:25 pm - 1:05 pmLHR-GMP
32h 40m1 stop
Air China Logo
2:25 pm - 5:45 pmGMP-LHR
35h 20m1 stop
$774Air China
Find Deal
Wed, Aug 27 - Wed, Sep 10
Logo
10:40 pm - 1:05 pmLHR-GMP
30h 25m1 stop
Logo
7:10 am - 8:30 pmGMP-LHR
21h 20m2 stops
$878
Find Deal
Sat, Sep 6 - Thu, Sep 25
Logo
9:00 pm - 12:25 pmLHR-GMP
31h 25m1 stop
Logo
7:10 am - 8:30 pmGMP-LHR
21h 20m2 stops
$885
Find Deal
Wed, Aug 27 - Wed, Sep 10

Lufthansa flights from London Heathrow Airport to Seoul

Our best Lufthansa deals on London Heathrow Airport to Seoul flight tickets
Lufthansa
Nov 20
LHR8:45 amLondon Heathrow
17h 30m
1 stop
ICN11:15 amIncheon Intl
Feb 27
ICN1:30 pmIncheon Intl
18h 25m
1 stop
LHR10:55 pmLondon Heathrow
$546
Find similar
Lufthansa
Jan 5
LHR4:40 pmLondon Heathrow
33h 35m
1 stop
ICN11:15 amIncheon Intl
Feb 18
ICN1:30 pmIncheon Intl
18h 25m
1 stop
LHR10:55 pmLondon Heathrow
$547
Find similar
Lufthansa
Nov 3
LHR4:40 pmLondon Heathrow
33h 35m
1 stop
ICN11:15 amIncheon Intl
Nov 12
ICN1:30 pmIncheon Intl
16h 30m
1 stop
LHR9:00 pmLondon Heathrow
$554
Find similar

Shenzhen Airlines flights from London Heathrow Airport to Seoul

Our best Shenzhen Airlines deals on London Heathrow Airport to Seoul flight tickets
Shenzhen Airlines
Sep 12
LHR10:05 pmLondon Heathrow
31h 35m
1 stop
ICN1:40 pmIncheon Intl
Sep 28
ICN2:40 pmIncheon Intl
37h 10m
1 stop
LHR7:50 pmLondon Heathrow
$594
Find similar
Shenzhen Airlines
Oct 22
LHR10:05 pmLondon Heathrow
33h 35m
1 stop
ICN3:40 pmIncheon Intl
Nov 15
ICN2:55 pmIncheon Intl
37h 15m
1 stop
LHR7:10 pmLondon Heathrow
$611
Find similar
Shenzhen Airlines
Oct 13
LHR10:05 pmLondon Heathrow
33h 35m
1 stop
ICN3:40 pmIncheon Intl
Nov 11
ICN2:55 pmIncheon Intl
37h 15m
1 stop
LHR7:10 pmLondon Heathrow
$615
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Seoul 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 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 11/25

9:30 pm-12:25 pm

1 stop29h 55m

Seoul Gimpo Intl

Sun 11/30

1:45 pm-5:55 pm

1 stop37h 10m

$511

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 11/25

9:30 pm-10:25 pm

1 stop15h 55m

Incheon Intl

Sun 11/30

10:55 am-6:15 pm

1 stop40h 20m

$511

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 11/20

8:45 am-11:15 am

1 stop17h 30m

Incheon Intl

Fri 2/27

1:30 pm-10:55 pm

1 stop18h 25m

$546

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 1/5

4:40 pm-11:15 am

1 stop33h 35m

Incheon Intl

Wed 2/18

1:30 pm-10:55 pm

1 stop18h 25m

$547

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 9/12

10:05 pm-1:40 pm

1 stop31h 35m

Incheon Intl

Sun 9/28

2:40 pm-7:50 pm

1 stop37h 10m

$594

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 10/22

10:05 pm-3:40 pm

1 stop33h 35m

Incheon Intl

Sat 11/15

2:55 pm-7:10 pm

1 stop37h 15m

$611

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 9/10

10:40 pm-1:05 pm

1 stop30h 25m

Seoul Gimpo Intl

Fri 10/10

2:25 pm-8:30 pm

1 stop14h 05m

$645

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 8/27

8:25 pm-1:05 pm

1 stop32h 40m

Seoul Gimpo Intl

Wed 9/10

2:25 pm-5:45 pm

1 stop35h 20m

$774

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 9/6

10:40 pm-1:05 pm

1 stop30h 25m

Seoul Gimpo Intl

Thu 9/25

7:10 am-8:30 pm

2 stops21h 20m

$878

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 8/27

9:00 pm-12:25 pm

1 stop31h 25m

Seoul Gimpo Intl

Wed 9/10

7:10 am-8:30 pm

2 stops21h 20m

$885

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Seoul from

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

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 London Heathrow Airport and Seoul?

What is the cheapest month to fly to Seoul?

The month of February is another great option to travel to Seoul, with average flight prices from London Heathrow Airport averaging around $691.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Wednesday is the cheapest day to fly to Seoul from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was $1,139. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Thursday, with ticket prices averaging around $1,237.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from London Heathrow Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $704 when looking at flights departing at noon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,187 per ticket.

What is the cheapest London Heathrow to Seoul flight route?

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

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $926 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London Heathrow Airport for as low as $837 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Seoul flights?

You could potentially save up to 6% on your flight if you consider stops on a London Heathrow Airport to Seoul flight.

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

As of August 2025, prices for London Heathrow Airport to Seoul flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Seoul

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

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

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

Best Price Found

$367

Fastest flight time

13h 55m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from London Heathrow Airport in the past 72 hours is $367. The best round-trip flight deal from London Heathrow Airport to Seoul found on momondo in the last 72 hours is $511.
The fastest flight from London Heathrow Airport to Seoul takes 13h 55m
Direct flights go from London Heathrow Airport to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)
Search flight deals

  • How far is London Heathrow to Seoul by plane?

    London Heathrow and Seoul are 5512.0 mi apart from one another. A reasonable flight in good conditions will take 14h 20m.

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

    Prices for flights from London Heathrow Airport to Seoul are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The necessary travel and health documents for your Seoul trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from London Heathrow Airport to Seoul

Compare and see reviews for airlines that fly from London Heathrow Airport to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom $507Free CancellationRating
7.3
93 reviews
Search Air China flights
LufthansaPriceFrom $579Free CancellationRating
6.8
7,276 reviews
Search Lufthansa flights
Asiana AirlinesPriceFrom $990Free CancellationRating
8.2
468 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,000Free CancellationRating
8.4
1,122 reviews
Search Korean Air flights

  • Korean Air Flights From London Heathrow Airport to Seoul

    The lowest priced Korean Air flight from London Heathrow Airport to Seoul from the last 72 hours was $1,000. Generally, Korean Air has 7 flights on this route every week with an average price of $1,171. Korean Air is rated 8.4/10 by our users.

  • Asiana Airlines Flights From London Heathrow Airport to Seoul

    The best Asiana Airlines deal for London Heathrow Airport to Seoul flight tickets found on momondo in the last 72 hours was $990, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at $1,373 round-trip. Asiana Airlines operates 7 flights out of London Heathrow Airport into Seoul in an average week, so prices vary by time and availability. 468 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.

Why use momondo?

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

It is quick and easy to find London to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

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

All flight searches from London to Seoul on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from London.

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

Yes. momondo can track prices for London to Seoul 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.

An easier way to manage your Seoul 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 8/7
Thu 8/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport