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Cheap flights from London Heathrow Airport to Seoul from £264

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 18/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
21:00 - 12:25
LHR
-
GMP
31h 25m
1 stop
China Southern Logo
13:30 - 18:05
GMP
-
LHR
36h 35m
1 stop
£405China Southern
Tue, 19 May - Tue, 26 May
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
£420China Southern
Wed, 13 May - Thu, 18 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
£422China Southern
Wed, 13 May - Tue, 26 May
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
£434China Southern
Tue, 2 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
£435China Southern
Wed, 3 Jun - Thu, 18 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
£435China Southern
Mon, 25 May - Tue, 2 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
£436China Southern
Tue, 12 May - Tue, 19 May
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
£438China Southern
Tue, 12 May - Tue, 9 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
£441China Southern
Thu, 4 Jun - Wed, 17 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
£445China Southern
Sat, 13 Jun - Sat, 20 Jun

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

Our best Air China deals on London Heathrow Airport to Seoul Gimpo Intl Airport flight tickets
Air China
3 Jun
LHR22:40London Heathrow
30h 25m
1 stop
GMP13:05Seoul Gimpo Intl
24 Jun
GMP14:25Seoul Gimpo Intl
35h 15m
1 stop
LHR17:40London Heathrow
£464
Air China
7 Jun
LHR22:40London Heathrow
30h 25m
1 stop
GMP13:05Seoul Gimpo Intl
14 Jun
GMP14:25Seoul Gimpo Intl
35h 15m
1 stop
LHR17:40London Heathrow
£468
Air China
5 Jun
LHR22:40London Heathrow
30h 25m
1 stop
GMP13:05Seoul Gimpo Intl
17 Jun
GMP14:25Seoul Gimpo Intl
35h 15m
1 stop
LHR17:40London Heathrow
£485

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
19 May
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
26 May
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
£405
China Southern
13 May
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
18 Jun
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
£420
China Southern
13 May
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
26 May
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
£422

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 21 March 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
Fastest return journey

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 19/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 26/5

13:30-18:05

1 stop36h 35m

£405

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 13/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Thu 18/6

13:30-18:05

1 stop36h 35m

£420

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 13/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 26/5

13:30-18:05

1 stop36h 35m

£422

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 2/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Mon 8/6

13:30-18:05

1 stop36h 35m

£434

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 3/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Thu 18/6

13:30-18:05

1 stop36h 35m

£435

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 25/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 2/6

13:30-18:05

1 stop36h 35m

£435

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 12/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 19/5

13:30-18:05

1 stop36h 35m

£436

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 12/5

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 9/6

13:30-18:05

1 stop36h 35m

£438

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 4/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Wed 17/6

13:30-18:05

1 stop36h 35m

£441

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 13/6

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sat 20/6

13:30-18:05

1 stop36h 35m

£445

Flights are sorted by cheapest return 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 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 cheapest month to fly to Seoul Gimpo Intl Airport?

In general, November 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 £341. If you aren’t able to travel during the month of November, then book flights to Seoul Gimpo Intl Airport from London Heathrow Airport during March instead. Flights to Seoul Gimpo Intl Airport in March, while not as cheap as those in November, still average around £414.

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

15h 45m

Direct flights

None
The fastest flight from London Heathrow Airport to Seoul Gimpo Intl Airport takes 15h 45m
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

  • 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. 15h 45m 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 many operators does momondo search for flights from London Heathrow Airport to Seoul Gimpo Intl Airport?

  • 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.

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

Best airlines flying from London Heathrow Airport to Seoul Gimpo Intl Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Seoul Gimpo Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £340Free CancellationRating
7.4
145 reviews
Search China Southern flights
Japan AirlinesPriceFrom £992Free CancellationRating
8.3
1,744 reviews
Search Japan Airlines flights

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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