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Cheap flights from London Heathrow Airport to Seoul from £347

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 29/5. 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 Southern Logo
21:30 - 12:25
LHR
-
GMP
29h 55m
1 stop
China Southern Logo
13:30 - 17:55
GMP
-
LHR
37h 25m
1 stop
£559China Southern
Sun, 8 Nov - Wed, 9 Dec
China Southern Logo
21:30 - 12:25
LHR
-
GMP
29h 55m
1 stop
China Southern Logo
13:30 - 17:55
GMP
-
LHR
37h 25m
1 stop
£560China Southern
Tue, 10 Nov - Thu, 26 Nov
China Southern Logo
21:30 - 12:25
LHR
-
GMP
29h 55m
1 stop
China Southern Logo
13:30 - 17:55
GMP
-
LHR
37h 25m
1 stop
£575China Southern
Tue, 10 Nov - Thu, 26 Nov
China Southern Logo
21:30 - 12:25
LHR
-
GMP
29h 55m
1 stop
China Southern Logo
13:30 - 17:55
GMP
-
LHR
37h 25m
1 stop
£578China Southern
Sat, 7 Nov - Thu, 19 Nov
China Southern Logo
21:30 - 12:25
LHR
-
GMP
29h 55m
1 stop
China Southern Logo
13:30 - 17:55
GMP
-
LHR
37h 25m
1 stop
£580China Southern
Mon, 9 Nov - Wed, 18 Nov
China Southern Logo
21:00 - 12:25
LHR
-
GMP
31h 25m
1 stop
China Southern Logo
13:30 - 18:05
GMP
-
LHR
36h 35m
1 stop
£591China Southern
Mon, 25 May - Mon, 8 Jun
China Eastern Logo
21:20 - 11:00
LHR
-
GMP
29h 40m
1 stop
China Eastern Logo
20:50 - 18:40
GMP
-
LHR
29h 50m
1 stop
£592China Eastern
Fri, 5 Jun - Mon, 8 Jun
China Southern Logo
21:00 - 12:25
LHR
-
GMP
31h 25m
1 stop
China Southern Logo
13:30 - 18:05
GMP
-
LHR
36h 35m
1 stop
£600China Southern
Mon, 8 Jun - Tue, 23 Jun
Air China Logo
22:40 - 13:05
LHR
-
GMP
30h 25m
1 stop
Air China Logo
14:25 - 17:40
GMP
-
LHR
35h 15m
1 stop
£607Air China
Thu, 1 Oct - Fri, 9 Oct
Air China Logo
20:25 - 13:05
LHR
-
GMP
32h 40m
1 stop
Air China Logo
14:25 - 17:40
GMP
-
LHR
35h 15m
1 stop
£609Air China
Thu, 1 Oct - Sun, 11 Oct

China Eastern flights from London Heathrow Airport to Seoul Gimpo Intl Airport

Our best China Eastern deals on London Heathrow Airport to Seoul Gimpo Intl Airport flight tickets
China Eastern
5 Jun
LHR21:20London Heathrow
29h 40m
1 stop
GMP11:00Seoul Gimpo Intl
8 Jun
GMP20:50Seoul Gimpo Intl
29h 50m
1 stop
LHR18:40London Heathrow
£592
China Eastern
1 Jun
LHR21:20London Heathrow
29h 40m
1 stop
GMP11:00Seoul Gimpo Intl
17 Jun
GMP20:50Seoul Gimpo Intl
29h 50m
1 stop
LHR18:40London Heathrow
£671
China Eastern
1 Jun
LHR21:20London Heathrow
29h 40m
1 stop
GMP11:00Seoul Gimpo Intl
17 Jun
GMP20:50Seoul Gimpo Intl
29h 50m
1 stop
LHR18:40London Heathrow
£672

China Southern flights from London Heathrow Airport to Seoul Gimpo Intl Airport

Our best China Southern deals on London Heathrow Airport to Seoul Gimpo Intl Airport flight tickets
China Southern
8 Nov
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
9 Dec
GMP13:30Seoul Gimpo Intl
37h 25m
1 stop
LHR17:55London Heathrow
£559
China Southern
10 Nov
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
26 Nov
GMP13:30Seoul Gimpo Intl
37h 25m
1 stop
LHR17:55London Heathrow
£560
China Southern
10 Nov
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
26 Nov
GMP13:30Seoul Gimpo Intl
37h 25m
1 stop
LHR17:55London Heathrow
£575

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Seoul Gimpo Intl 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 14 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Seoul Gimpo Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 8/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 9/12

13:30-17:55

1 stop37h 25m

£559

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 10/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Thu 26/11

13:30-17:55

1 stop37h 25m

£560

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 10/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Thu 26/11

13:30-17:55

1 stop37h 25m

£575

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 7/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Thu 19/11

13:30-17:55

1 stop37h 25m

£578

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 9/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 18/11

13:30-17:55

1 stop37h 25m

£580

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 25/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Mon 8/6

13:30-18:05

1 stop36h 35m

£591
Fastest return journey

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 5/6

21:20-11:00

1 stop29h 40m

Seoul Gimpo Intl

Mon 8/6

20:50-18:40

1 stop29h 50m

£592

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 8/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 23/6

13:30-18:05

1 stop36h 35m

£600

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 1/10

22:40-13:05

1 stop30h 25m

Seoul Gimpo Intl

Fri 9/10

14:25-17:40

1 stop35h 15m

£607

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 1/10

20:25-13:05

1 stop32h 40m

Seoul Gimpo Intl

Sun 11/10

14:25-17:40

1 stop35h 15m

£609

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from London Heathrow Airport to Seoul Gimpo Intl 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 London Heathrow Airport and Seoul Gimpo Intl Airport?

What is the cheapest month to fly to Seoul Gimpo Intl Airport?

In general, January is the cheapest month to fly from London Heathrow Airport to Seoul Gimpo Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £0. If you aren’t able to travel during the month of January, then book flights to Seoul Gimpo Intl Airport from London Heathrow Airport during November instead. Flights to Seoul Gimpo Intl Airport in November, while not as cheap as those in January, still average around £336.

When to book flights from London Heathrow Airport to Seoul Gimpo Intl Airport

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

Cheap London Heathrow Airport to Seoul Gimpo Intl Airport (LHR to GMP) flight deals and tips

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

Fastest flight time

17h 30m

Direct flights

None
The fastest flight from London Heathrow Airport to Seoul Gimpo Intl Airport takes 17h 30m
There are no direct flights from London Heathrow Airport to Seoul Gimpo Intl Airport. There are no popular flight routes from London Heathrow Airport to Seoul Gimpo Intl Airport.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Seoul Gimpo Intl Airport

  • How far is London Heathrow to Seoul Gimpo Intl by plane?

    London Heathrow and Seoul Gimpo Intl are 5506.0 mi apart from one another. 17h 30m is a normal flight duration for this route.

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Seoul Gimpo Intl Airport.

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

    The required travel and health documents for your Seoul Gimpo Intl 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 Seoul Gimpo Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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?

momondo does allow users to show only those flights to Seoul from London which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for London to Seoul flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Seoul from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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