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Cheap flights from London Heathrow Airport to Seoul from €339

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 12/5. 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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0 bags
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Find the cheapest flights from London Heathrow Airport to Seoul

Cheap return flights

Enter your travel dates to find the best prices.
China Eastern Logo
21:20 - 20:45
LHR
-
ICN
15h 25m
1 stop
China Eastern Logo
18:25 - 18:40
ICN
-
LHR
32h 15m
1 stop
€488China Eastern
Fri, 24 Apr - Sun, 17 May
China Eastern Logo
21:20 - 15:20
LHR
-
ICN
34h 00m
1 stop
China Eastern Logo
12:55 - 18:40
ICN
-
LHR
37h 45m
1 stop
€488China Eastern
Fri, 10 Apr - Sun, 3 May
China Eastern Logo
21:20 - 15:10
LHR
-
ICN
33h 50m
1 stop
China Eastern Logo
16:20 - 18:40
ICN
-
LHR
34h 20m
1 stop
€490China Eastern
Wed, 22 Apr - Sat, 2 May
China Eastern Logo
21:20 - 15:20
LHR
-
ICN
34h 00m
1 stop
China Eastern Logo
07:45 - 18:40
ICN
-
LHR
42h 55m
2 stops
€494China Eastern
Tue, 19 May - Tue, 2 Jun
China Eastern Logo
21:20 - 20:45
LHR
-
ICN
15h 25m
1 stop
China Eastern Logo
15:55 - 18:40
ICN
-
LHR
34h 45m
2 stops
€495China Eastern
Fri, 24 Apr - Sun, 17 May
China Eastern Logo
21:20 - 14:50
LHR
-
ICN
33h 30m
2 stops
China Eastern Logo
08:55 - 18:40
ICN
-
LHR
17h 45m
1 stop
€497China Eastern
Tue, 2 Jun - Wed, 10 Jun
China Eastern Logo
21:20 - 13:15
LHR
-
ICN
55h 55m
3 stops
China Eastern Logo
07:45 - 18:40
ICN
-
LHR
42h 55m
2 stops
€500China Eastern
Mon, 6 Apr - Thu, 7 May
China Eastern Logo
21:20 - 10:55
LHR
-
ICN
29h 35m
2 stops
China Eastern Logo
20:15 - 18:40
ICN
-
LHR
30h 25m
2 stops
€501China Eastern
Fri, 24 Apr - Sun, 17 May
China Eastern Logo
21:20 - 20:45
LHR
-
ICN
15h 25m
1 stop
China Eastern Logo
08:55 - 18:40
ICN
-
LHR
17h 45m
1 stop
€528China Eastern
Sun, 26 Apr - Fri, 15 May
China Eastern Logo
21:20 - 20:45
LHR
-
ICN
15h 25m
1 stop
China Eastern Logo
08:55 - 18:40
ICN
-
LHR
17h 45m
1 stop
€529China Eastern
Fri, 24 Apr - Wed, 10 Jun

Shenzhen Airlines flights from London Heathrow Airport to Seoul

Our best Shenzhen Airlines deals on London Heathrow Airport to Seoul flight tickets
Shenzhen Airlines
15 Mar
LHR21:10London Heathrow
31h 45m
1 stop
ICN13:55Incheon Intl
31 Mar
ICN15:15Incheon Intl
36h 45m
1 stop
LHR20:00London Heathrow
€530
Shenzhen Airlines
27 Apr
LHR22:05London Heathrow
32h 10m
1 stop
ICN14:15Incheon Intl
3 May
ICN15:15Incheon Intl
36h 35m
1 stop
LHR19:50London Heathrow
€544
Shenzhen Airlines
7 Jun
LHR22:05London Heathrow
32h 10m
1 stop
ICN14:15Incheon Intl
16 Jun
ICN15:15Incheon Intl
36h 45m
1 stop
LHR20:00London Heathrow
€544

Tianjin Airlines flights from London Heathrow Airport to Seoul

Our best Tianjin Airlines deals on London Heathrow Airport to Seoul flight tickets
Tianjin Airlines
1 May
LHR22:00London Heathrow
30h 00m
2 stops
ICN12:00Incheon Intl
14 May
ICN22:10Incheon Intl
29h 50m
2 stops
LHR20:00London Heathrow
€598
Tianjin Airlines
24 Apr
LHR22:00London Heathrow
30h 00m
2 stops
ICN12:00Incheon Intl
6 Jun
ICN22:10Incheon Intl
29h 50m
2 stops
LHR20:00London Heathrow
€599
Tianjin Airlines
1 May
LHR22:00London Heathrow
30h 00m
2 stops
ICN12:00Incheon Intl
21 May
ICN22:10Incheon Intl
29h 50m
2 stops
LHR20:00London Heathrow
€601

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 9 March 2026.
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

Cheapest return flight

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 24/4

21:20-20:45

1 stop15h 25m

Incheon Intl

Sun 17/5

18:25-18:40

1 stop32h 15m

€488

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 10/4

21:20-15:20

1 stop34h 00m

Incheon Intl

Sun 3/5

12:55-18:40

1 stop37h 45m

€488

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 22/4

21:20-15:10

1 stop33h 50m

Incheon Intl

Sat 2/5

16:20-18:40

1 stop34h 20m

€490

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 19/5

21:20-15:20

1 stop34h 00m

Incheon Intl

Tue 2/6

07:45-18:40

2 stops42h 55m

€494

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 24/4

21:20-20:45

1 stop15h 25m

Incheon Intl

Sun 17/5

15:55-18:40

2 stops34h 45m

€495

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 2/6

21:20-14:50

2 stops33h 30m

Incheon Intl

Wed 10/6

08:55-18:40

1 stop17h 45m

€497

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 6/4

21:20-13:15

3 stops55h 55m

Incheon Intl

Thu 7/5

07:45-18:40

2 stops42h 55m

€500

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 24/4

21:20-10:55

2 stops29h 35m

Incheon Intl

Sun 17/5

20:15-18:40

2 stops30h 25m

€501
Fastest return journey

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 26/4

21:20-20:45

1 stop15h 25m

Incheon Intl

Fri 15/5

08:55-18:40

1 stop17h 45m

€528

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 24/4

21:20-20:45

1 stop15h 25m

Incheon Intl

Wed 10/6

08:55-18:40

1 stop17h 45m

€529

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 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 cheapest month to fly to Seoul from London Heathrow Airport is in November. Flight prices, which tend to average around €507, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seoul, with average flight prices from London Heathrow Airport averaging around €522.

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

On average, the least expensive day to fly to Seoul from London Heathrow Airport is on a Sunday. momondo users have found tickets for Sunday departures for as low as €944. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London Heathrow Airport to Seoul on a Friday will generally be more expensive and average around €1,053. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 €801 when searching weeks before you fly. 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 €681 on momondo.

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

There is only 1 cabin class 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?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Seoul.

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

As of March 2026, prices for London Heathrow Airport to Seoul flights are approximately 1% more expensive 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 return 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

Fastest flight time

12h 40m

Direct flights

Every day

Airports in Seoul

2 airports
The fastest flight from London Heathrow Airport to Seoul takes 12h 40m
Direct flights go from London Heathrow Airport to Seoul every day.
There are 2 airports in Seoul. From London Heathrow Airport there are direct flights to Incheon Intl (ICN).
Search flight deals

  • How far is London Heathrow to Seoul by plane?

    A flight from London Heathrow to Seoul will travel around 8870.7 km. A reasonable flight in good conditions will take 12h 40m.

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

    Prices for flights from London Heathrow Airport to Seoul are refreshed on a daily basis.

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

    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 London Heathrow Airport to Seoul.

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

    The required travel and health documents for your Seoul 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 licence and a passport valid for six months after your intended arrival at Seoul. 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 London Heathrow Airport to Seoul?

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Seoul . Millions of users trust and use momondo every year so you are in good hands.

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

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

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

momondo helps you find the best flight between London and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Seoul from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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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 48.8 km from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport