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Cheap flights from London Heathrow Airport to Seoul from £245

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 26/1. 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
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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
21:00 - 11:00
LHR
-
GMP
29h 00m1 stop
China Eastern Logo
20:50 - 17:30
GMP
-
LHR
29h 40m1 stop
£353China Eastern
Sun, 25 Jan - Sun, 1 Feb
Multiple Airlines Logo
21:30 - 12:25
LHR
-
GMP
29h 55m1 stop
Multiple Airlines Logo
20:50 - 17:30
GMP
-
LHR
29h 40m1 stop
£371Multiple Airlines
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
21:30 - 12:25
LHR
-
GMP
29h 55m1 stop
Multiple Airlines Logo
20:50 - 17:30
GMP
-
LHR
29h 40m1 stop
£372Multiple Airlines
Fri, 23 Jan - Fri, 30 Jan
Multiple Airlines Logo
21:30 - 12:25
LHR
-
GMP
29h 55m1 stop
Multiple Airlines Logo
20:50 - 17:30
GMP
-
LHR
29h 40m1 stop
£378Multiple Airlines
Fri, 23 Jan - Mon, 26 Jan
Air China Logo
17:40 - 13:05
LHR
-
GMP
34h 25m1 stop
Air China Logo
14:25 - 15:55
GMP
-
LHR
34h 30m1 stop
£379Air China
Tue, 10 Mar - Mon, 16 Mar
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m1 stop
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m1 stop
£381Air China
Wed, 11 Mar - Wed, 18 Mar
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m1 stop
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m1 stop
£388Air China
Sun, 8 Mar - Sat, 21 Mar
Multiple Airlines Logo
21:30 - 12:25
LHR
-
GMP
29h 55m1 stop
Multiple Airlines Logo
14:25 - 15:55
GMP
-
LHR
34h 30m1 stop
£389Multiple Airlines
Fri, 16 Jan - Mon, 19 Jan
Air China Logo
17:40 - 13:05
LHR
-
GMP
34h 25m1 stop
Air China Logo
14:25 - 20:25
GMP
-
LHR
14h 00m1 stop
£390Air China
Thu, 12 Mar - Thu, 2 Apr
Air China Logo
22:40 - 13:05
LHR
-
GMP
30h 25m1 stop
Air China Logo
14:25 - 20:25
GMP
-
LHR
14h 00m1 stop
£391Air China
Mon, 15 Jun - Mon, 22 Jun

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
7 Mar
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
4 Jun
GMP13:25Seoul Gimpo Intl
36h 40m
1 stop
LHR18:05London Heathrow
£415
Find similar
China Southern
3 Mar
LHR21:30London Heathrow
29h 55m
1 stop
GMP12:25Seoul Gimpo Intl
31 Mar
GMP13:25Seoul Gimpo Intl
36h 40m
1 stop
LHR18:05London Heathrow
£433
Find similar
China Southern
17 May
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
23 May
GMP13:25Seoul Gimpo Intl
36h 40m
1 stop
LHR18:05London Heathrow
£437
Find similar

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
25 Jan
LHR21:00London Heathrow
29h 00m
1 stop
GMP11:00Seoul Gimpo Intl
1 Feb
GMP20:50Seoul Gimpo Intl
29h 40m
1 stop
LHR17:30London Heathrow
£353
Find similar
China Eastern
18 Jan
LHR21:00London Heathrow
29h 00m
1 stop
GMP11:00Seoul Gimpo Intl
24 Jan
GMP20:50Seoul Gimpo Intl
29h 40m
1 stop
LHR17:30London Heathrow
£421
Find similar
China Eastern
13 Jan
LHR21:00London Heathrow
29h 00m
1 stop
GMP11:00Seoul Gimpo Intl
20 Jan
GMP20:50Seoul Gimpo Intl
29h 40m
1 stop
LHR17:30London Heathrow
£452
Find similar

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 29 December 2025.
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

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 25/1

21:00-11:00

1 stop29h 00m

Seoul Gimpo Intl

Sun 1/2

20:50-17:30

1 stop29h 40m

£353

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 15/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Thu 22/1

20:50-17:30

1 stop29h 40m

£371

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 23/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Fri 30/1

20:50-17:30

1 stop29h 40m

£372

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 23/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Mon 26/1

20:50-17:30

1 stop29h 40m

£378

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 10/3

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Mon 16/3

14:25-15:55

1 stop34h 30m

£379

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 11/3

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Wed 18/3

14:25-17:50

1 stop36h 25m

£381

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 8/3

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Sat 21/3

14:25-17:50

1 stop36h 25m

£388

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 16/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Mon 19/1

14:25-15:55

1 stop34h 30m

£389

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 12/3

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Thu 2/4

14:25-20:25

1 stop14h 00m

£390

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 15/6

22:40-13:05

1 stop30h 25m

Seoul Gimpo Intl

Mon 22/6

14:25-20:25

1 stop14h 00m

£391

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 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 £337. 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 £409.

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

According to our data, Thursday is the cheapest day to fly to Seoul Gimpo Intl Airport from London Heathrow Airport. The lowest ticket price found for a Thursday departure recently was £490. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London Heathrow Airport to Seoul Gimpo Intl Airport on a Monday will generally be more expensive and average around £655. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest London Heathrow Airport to Seoul Gimpo Intl Airport flights are usually those with departure times in the evening. Our users have found flights to Seoul Gimpo Intl Airport in the evening for as low as £490. In the morning is when there is more demand to fly to Seoul Gimpo Intl Airport, so prices are often more expensive at around £597 per ticket.

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 05m

Direct flights

None
The fastest flight from London Heathrow Airport to Seoul Gimpo Intl Airport takes 17h 05m
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. 17h 05m 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 £328Free CancellationRating
7.5
123 reviews
Search China Southern flights
Japan AirlinesPriceFrom £980Free CancellationRating
8.3
1,663 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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