What is the cheapest airline that flies from Seoul Gimpo Intl to London Heathrow?

China Southern, Air China, and Japan Airlines are the most popular carriers operating from Seoul Gimpo Intl to London Heathrow

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.

£175 Cheap Flights from Seoul Gimpo Intl Airport to London Heathrow Airport in 2026/27

Find the cheapest flights from Seoul Gimpo Intl Airport to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£443China Southern

Thu, 24 Dec - Wed, 6 Jan

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£445China Southern

Thu, 24 Dec - Mon, 18 Jan

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£456China Southern

Thu, 24 Dec - Mon, 4 Jan

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£457China Southern

Thu, 24 Dec - Mon, 4 Jan

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£459China Southern

Thu, 24 Dec - Mon, 4 Jan

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£472China Southern

Thu, 26 Nov - Mon, 30 Nov

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£474China Southern

Wed, 25 Nov - Tue, 1 Dec

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£487China Southern

Thu, 26 Nov - Sun, 29 Nov

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£521China Southern

Thu, 26 Nov - Mon, 30 Nov

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£527China Southern

Wed, 17 Feb - Mon, 22 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:00 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

38h 30m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£484China Eastern

Tue, 17 Nov - Sun, 29 Nov

20:50 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

29h 40m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£512China Eastern

Thu, 12 Nov - Thu, 19 Nov

20:50 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

29h 40m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£516China Eastern

Thu, 12 Nov - Wed, 25 Nov

20:50 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

29h 40m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£549China Eastern

Thu, 12 Nov - Wed, 25 Nov

20:50 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

29h 40m1 stop Shanghai Hongqiao Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£584Multiple Airlines

Thu, 12 Nov - Wed, 25 Nov

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£684China Southern

Thu, 12 Nov - Wed, 25 Nov

12:00 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

38h 30m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£707China Eastern

Tue, 17 Nov - Tue, 24 Nov

13:30 - 17:55GMP Seoul Gimpo Intl-LHR London Heathrow

37h 25m1 stop Beijing Daxing Intl

21:30 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

29h 55m1 stop Beijing Daxing Intl

£709China Southern

Thu, 12 Nov - Wed, 25 Nov

12:00 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

38h 30m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£728Multiple Airlines

Tue, 17 Nov - Wed, 25 Nov

12:00 - 17:30GMP Seoul Gimpo Intl-LHR London Heathrow

38h 30m1 stop Shanghai Hongqiao Intl

21:00 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 00m1 stop Shanghai Pu Dong

£728Multiple Airlines

Tue, 17 Nov - Wed, 25 Nov

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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

24 Dec

GMP13:30Seoul Gimpo Intl

37h 25m

1 stop

LHR17:55London Heathrow

6 Jan

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£442

China Southern

24 Dec

GMP13:30Seoul Gimpo Intl

37h 25m

1 stop

LHR17:55London Heathrow

18 Jan

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£445

China Southern

24 Dec

GMP13:30Seoul Gimpo Intl

37h 25m

1 stop

LHR17:55London Heathrow

4 Jan

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£456

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

12 Dec

GMP14:25Seoul Gimpo Intl

36h 25m

1 stop

LHR17:50London Heathrow

31 Dec

LHR17:45London Heathrow

34h 20m

1 stop

GMP13:05Seoul Gimpo Intl

£704

Air China

24 Jan

GMP14:25Seoul Gimpo Intl

36h 25m

1 stop

LHR17:50London Heathrow

27 Jan

LHR20:25London Heathrow

31h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£706

Air China

1 Mar

GMP14:25Seoul Gimpo Intl

34h 30m

1 stop

LHR15:55London Heathrow

31 Mar

LHR22:40London Heathrow

30h 25m

1 stop

GMP13:05Seoul Gimpo Intl

£708

momondo Fare Finder

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

Fastest return journey

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 24/12

13:30-17:55

1 stop37h 25m

London Heathrow

Wed 6/1

21:30-12:25

1 stop29h 55m

£442

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 24/12

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 18/1

21:30-12:25

1 stop29h 55m

£445

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 24/12

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 4/1

21:30-12:25

1 stop29h 55m

£456

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 24/12

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 4/1

21:30-12:25

1 stop29h 55m

£457

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 24/12

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 4/1

21:30-12:25

1 stop29h 55m

£459

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 26/11

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 30/11

21:30-12:25

1 stop29h 55m

£472

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 25/11

13:30-17:55

1 stop37h 25m

London Heathrow

Tue 1/12

21:30-12:25

1 stop29h 55m

£474

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 26/11

13:30-17:55

1 stop37h 25m

London Heathrow

Sun 29/11

21:30-12:25

1 stop29h 55m

£487

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 26/11

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 30/11

21:30-12:25

1 stop29h 55m

£521

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 17/2

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 22/2

21:30-12:25

1 stop29h 55m

£527

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 Monday. momondo users have found tickets for Monday departures for as low as £597. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £761.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Seoul Gimpo Intl Airport to London Heathrow Airport at midday for as low as £695. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £704 on average. Flights to London Heathrow Airport from Seoul Gimpo Intl Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Best price found	£175
Fastest flight time	19h 45m
Direct flights	None

The best one-way flight to London Heathrow Airport from Seoul Gimpo Intl Airport in the past 72 hours is £175. The best return flight deal from Seoul Gimpo Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is £442.

The fastest flight from Seoul Gimpo Intl Airport to London Heathrow Airport takes 19h 45m

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.

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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 19h 45m.
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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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.

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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.