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Cheap flights from Seoul Gimpo Intl Airport to London from £183

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul Gimpo Intl Airport to London departing on 1/6. 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 Seoul Gimpo Intl Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Air China Logo
14:25 - 17:40
GMP
-
LHR
35h 15m
1 stop
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
£541Air China
Wed, 14 Oct - Wed, 18 Nov
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m
1 stop
Air China Logo
17:40 - 13:05
LHR
-
GMP
34h 25m
1 stop
£546Air China
Wed, 4 Nov - Sat, 14 Nov
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m
1 stop
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
£550Air China
Wed, 4 Nov - Sat, 14 Nov
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m
1 stop
Air China Logo
17:40 - 13:05
LHR
-
GMP
34h 25m
1 stop
£550Air China
Wed, 4 Nov - Sat, 14 Nov
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m
1 stop
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
£579Air China
Wed, 4 Nov - Sat, 14 Nov
Air China Logo
14:25 - 17:40
GMP
-
LHR
35h 15m
1 stop
Air China Logo
22:40 - 13:05
LHR
-
GMP
30h 25m
1 stop
£594Air China
Thu, 3 Sep - Fri, 11 Sep
Air China Logo
14:25 - 17:50
GMP
-
LHR
36h 25m
1 stop
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
£607Air China
Wed, 4 Nov - Sat, 14 Nov
Air China Logo
14:25 - 17:40
GMP
-
LHR
35h 15m
1 stop
Air China Logo
22:40 - 13:05
LHR
-
GMP
30h 25m
1 stop
£623Air China
Thu, 25 Jun - Thu, 2 Jul
Air China Logo
14:25 - 17:40
GMP
-
LHR
35h 15m
1 stop
Air China Logo
22:40 - 13:05
LHR
-
GMP
30h 25m
1 stop
£626Air China
Sat, 20 Jun - Sat, 27 Jun
Multiple Airlines Logo
08:05 - 20:25
GMP
-
LHR
20h 20m
2 stops
Multiple Airlines Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
£632Multiple Airlines
Wed, 14 Oct - Wed, 18 Nov

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

Our best Air China deals on Seoul Gimpo Intl Airport to London Heathrow Airport flight tickets
Air China
14 Oct
GMP14:25Seoul Gimpo Intl
35h 15m
1 stop
LHR17:40London Heathrow
18 Nov
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£541
Air China
4 Nov
GMP14:25Seoul Gimpo Intl
36h 25m
1 stop
LHR17:50London Heathrow
14 Nov
LHR17:40London Heathrow
34h 25m
1 stop
GMP13:05Seoul Gimpo Intl
£546
Air China
4 Nov
GMP14:25Seoul Gimpo Intl
36h 25m
1 stop
LHR17:50London Heathrow
14 Nov
LHR20:25London Heathrow
31h 40m
1 stop
GMP13:05Seoul Gimpo Intl
£550

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

Our best China Southern deals on Seoul Gimpo Intl Airport to London Heathrow Airport flight tickets
China Southern
6 Jun
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
13 Jun
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
£697
China Southern
12 May
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
25 May
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
£759
China Southern
20 May
GMP13:30Seoul Gimpo Intl
36h 35m
1 stop
LHR18:05London Heathrow
28 May
LHR21:00London Heathrow
31h 25m
1 stop
GMP12:25Seoul Gimpo Intl
£960

momondo Fare Finder

 
Customise your flight search to find flights from Seoul Gimpo Intl Airport to London Heathrow 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 11 May 2026.
Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 14/10

14:25-17:40

1 stop35h 15m

London Heathrow

Wed 18/11

20:25-13:05

1 stop31h 40m

£541

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 4/11

14:25-17:50

1 stop36h 25m

London Heathrow

Sat 14/11

17:40-13:05

1 stop34h 25m

£546

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 4/11

14:25-17:50

1 stop36h 25m

London Heathrow

Sat 14/11

20:25-13:05

1 stop31h 40m

£550

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 4/11

14:25-17:50

1 stop36h 25m

London Heathrow

Sat 14/11

17:40-13:05

1 stop34h 25m

£550

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 4/11

14:25-17:50

1 stop36h 25m

London Heathrow

Sat 14/11

20:25-13:05

1 stop31h 40m

£579

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 3/9

14:25-17:40

1 stop35h 15m

London Heathrow

Fri 11/9

22:40-13:05

1 stop30h 25m

£594

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 4/11

14:25-17:50

1 stop36h 25m

London Heathrow

Sat 14/11

20:25-13:05

1 stop31h 40m

£607

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/6

14:25-17:40

1 stop35h 15m

London Heathrow

Thu 2/7

22:40-13:05

1 stop30h 25m

£623

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sat 20/6

14:25-17:40

1 stop35h 15m

London Heathrow

Sat 27/6

22:40-13:05

1 stop30h 25m

£626
Fastest return journey

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 14/10

08:05-20:25

2 stops20h 20m

London Heathrow

Wed 18/11

20:25-13:05

1 stop31h 40m

£632

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Seoul Gimpo Intl Airport to London Heathrow 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 day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Seoul Gimpo Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as £514. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £708.

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

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

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

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

Fastest flight time

18h 50m

Direct flights

None
The fastest flight from Seoul Gimpo Intl Airport to London Heathrow Airport takes 18h 50m
There are no direct flights from Seoul Gimpo Intl Airport to London Heathrow Airport. There are no popular flight routes from Seoul Gimpo Intl Airport to London Heathrow Airport.
Search flight deals

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

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

    The distance between Seoul Gimpo Intl and London Heathrow is about 5506.0 mi. A reasonable flight in good conditions will take 18h 50m.

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

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

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

    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 Seoul Gimpo Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Hayes
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Poole
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Chelmsford
Dover

Why use momondo?

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

Finding the right flight to London from Seoul is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

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

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

Once all potential Seoul to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

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