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Cheap flights from London to Seoul from £323

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 to Seoul departing on 18/8. 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

Find the cheapest flights from London 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
£566China Southern
Tue, 3 Nov - Wed, 11 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
£584China Southern
Thu, 3 Sep - Thu, 10 Sep
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
£587China Southern
Wed, 2 Sep - Wed, 9 Sep
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
£587China Southern
Thu, 1 Oct - Sun, 11 Oct
Air China Logo
11:35 - 13:05
LGW
-
GMP
16h 30m
1 stop
Air China Logo
14:25 - 06:20
GMP
-
LGW
24h 55m
1 stop
£588Air China
Sun, 25 Oct - Thu, 5 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
£589China Southern
Thu, 27 Aug - Fri, 4 Sep
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
£590China Southern
Fri, 18 Sep - Sun, 4 Oct
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
£590China Southern
Tue, 1 Sep - Tue, 8 Sep
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
£592China Southern
Thu, 29 Oct - Wed, 4 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
£593China Southern
Tue, 1 Sep - Thu, 10 Sep

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China Southern flights from London to Seoul Gimpo Intl Airport

Our best China Southern deals on London to Seoul Gimpo Intl Airport flight tickets
China Southern
3 Sept
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
10 Sept
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
£584
China Southern
2 Sept
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
9 Sept
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
£587
China Southern
1 Oct
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
11 Oct
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
£587

China Eastern flights from London to Seoul Gimpo Intl Airport

Our best China Eastern deals on London to Seoul Gimpo Intl Airport flight tickets
China Eastern
17 Nov
LGW10:30London Gatwick
24h 20m
1 stop
GMP19:50Seoul Gimpo Intl
2 Dec
GMP12:00Seoul Gimpo Intl
27h 30m
1 stop
LGW06:30London Gatwick
£622
China Eastern
25 Aug
LGW11:35London Gatwick
24h 15m
1 stop
GMP19:50Seoul Gimpo Intl
27 Aug
GMP20:50Seoul Gimpo Intl
26h 10m
1 stop
LGW15:00London Gatwick
£624
China Eastern
3 Sept
LGW21:55London Gatwick
29h 05m
1 stop
GMP11:00Seoul Gimpo Intl
1 Oct
GMP12:00Seoul Gimpo Intl
26h 40m
1 stop
LGW06:40London Gatwick
£626

momondo Fare Finder

 
Customise your flight search to find flights from London 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 27 July 2026.
Use the filters below to find and compare flights from London 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

Tue 3/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 11/11

13:30-17:55

1 stop37h 25m

£566

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 3/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Thu 10/9

13:30-18:05

1 stop36h 35m

£584

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 2/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Wed 9/9

13:30-18:05

1 stop36h 35m

£587

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 1/10

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sun 11/10

13:30-18:05

1 stop36h 35m

£587
Fastest return journey

LondonSeoul

LGW - GMP

LGWGMP

London Gatwick

Sun 25/10

11:35-13:05

1 stop16h 30m

Seoul Gimpo Intl

Thu 5/11

14:25-06:20

1 stop24h 55m

£588

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 27/8

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Fri 4/9

13:30-18:05

1 stop36h 35m

£589

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 18/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sun 4/10

13:30-18:05

1 stop36h 35m

£590

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 1/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 8/9

13:30-18:05

1 stop36h 35m

£590

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 29/10

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 4/11

13:30-17:55

1 stop37h 25m

£592

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 1/9

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Thu 10/9

13:30-18:05

1 stop36h 35m

£593

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 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, March is the cheapest month to fly from London to Seoul Gimpo Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £384. If you aren’t able to travel during the month of March, then book flights to Seoul Gimpo Intl Airport from London during October instead. Flights to Seoul Gimpo Intl Airport in October, while not as cheap as those in March, still average around £427.

When to book flights from London to Seoul Gimpo Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London 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 to Seoul Gimpo Intl Airport (LON to GMP) flight deals and tips

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

Fastest flight time

13h 30m

Direct flights

None
The fastest flight from London to Seoul Gimpo Intl Airport takes 13h 30m
There are no direct flights from London to Seoul Gimpo Intl Airport. There are no popular flight routes from London to Seoul Gimpo Intl Airport.
Search flight deals

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

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

    A flight from London to Seoul Gimpo Intl will travel around 5495.4 mi. Flights usually cover this in 13h 30m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London to Seoul Gimpo Intl Airport refresh daily.

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

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

    The necessary travel and health documents for your Seoul Gimpo Intl Airport 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 airline from London to Seoul Gimpo Intl Airport?

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Seoul. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Seoul from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Seoul from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from London and alert you when they change.

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