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

Air China is the most popular carrier 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.

£218 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 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

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

29h 55m1 stop Beijing Daxing Intl

£460China Southern

Tue, 20 Oct - Mon, 2 Nov

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

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

29h 55m1 stop Beijing Daxing Intl

£480China Southern

Wed, 21 Oct - Wed, 4 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

£485China Southern

Thu, 12 Nov - Wed, 25 Nov

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

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

29h 55m1 stop Beijing Daxing Intl

£491China Southern

Wed, 21 Oct - Wed, 28 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

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

29h 55m1 stop Beijing Daxing Intl

£491China Southern

Sat, 17 Oct - Wed, 28 Oct

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

£492China Southern

Thu, 5 Nov - Tue, 10 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

£492China Southern

Wed, 4 Nov - Mon, 9 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

£493China Southern

Thu, 19 Nov - Wed, 2 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

£494China Southern

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

£498China Southern

Thu, 19 Nov - Wed, 25 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

20:50 - 20:55GMP Seoul Gimpo Intl-LHR London Heathrow

32h 05m2 stops Shanghai Hongqiao Intl Amsterdam Schiphol

06:30 - 19:50LHR London Heathrow-GMP Seoul Gimpo Intl

29h 20m2 stops Amsterdam Schiphol Shanghai Pu Dong

£805Multiple Airlines

Tue, 29 Sep - Sat, 3 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

21:00 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

31h 25m1 stop Beijing Daxing Intl

£842China Southern

Sat, 3 Oct - Fri, 9 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

21:00 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

31h 25m1 stop Beijing Daxing Intl

£843China Southern

Sat, 3 Oct - Sun, 11 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

21:00 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

31h 25m1 stop Beijing Daxing Intl

£843China Southern

Sat, 3 Oct - Fri, 9 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

21:00 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

31h 25m1 stop Beijing Daxing Intl

£851China Southern

Sat, 3 Oct - Sun, 11 Oct

13:50 - 19:20GMP Seoul Gimpo Intl-LHR London Heathrow

37h 30m2 stops Taipei City Sung Shan Bangkok Suvarnabhumi

21:35 - 19:15LHR London Heathrow-GMP Seoul Gimpo Intl

37h 40m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

£927EVA Air

Fri, 2 Oct - Mon, 5 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

21:00 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

31h 25m1 stop Beijing Daxing Intl

£948China Southern

Sat, 3 Oct - Sat, 10 Oct

20:50 - 18:40GMP Seoul Gimpo Intl-LHR London Heathrow

29h 50m1 stop Shanghai Hongqiao Intl

21:20 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 40m1 stop Shanghai Pu Dong

£954China Eastern

Thu, 1 Oct - Sat, 10 Oct

20:50 - 18:40GMP Seoul Gimpo Intl-LHR London Heathrow

29h 50m1 stop Shanghai Hongqiao Intl

21:20 - 11:00LHR London Heathrow-GMP Seoul Gimpo Intl

29h 40m1 stop Shanghai Pu Dong

£989China Eastern

Fri, 2 Oct - Fri, 9 Oct

13:30 - 18:05GMP Seoul Gimpo Intl-LHR London Heathrow

36h 35m1 stop Beijing Daxing Intl

22:10 - 12:25LHR London Heathrow-GMP Seoul Gimpo Intl

30h 15m2 stops Guangzhou Baiyun Beijing Daxing Intl

£999China Southern

Sat, 3 Oct - Fri, 9 Oct

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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

20 Oct

GMP13:30Seoul Gimpo Intl

36h 35m

1 stop

LHR18:05London Heathrow

2 Nov

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£460

China Southern

21 Oct

GMP13:30Seoul Gimpo Intl

36h 35m

1 stop

LHR18:05London Heathrow

4 Nov

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£480

China Southern

12 Nov

GMP13:30Seoul Gimpo Intl

37h 25m

1 stop

LHR17:55London Heathrow

25 Nov

LHR21:30London Heathrow

29h 55m

1 stop

GMP12:25Seoul Gimpo Intl

£485

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

20 Nov

GMP14:25Seoul Gimpo Intl

36h 25m

1 stop

LHR17:50London Heathrow

26 Nov

LHR20:25London Heathrow

31h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£544

Air China

20 Nov

GMP14:25Seoul Gimpo Intl

36h 25m

1 stop

LHR17:50London Heathrow

26 Nov

LHR17:45London Heathrow

34h 20m

1 stop

GMP13:05Seoul Gimpo Intl

£549

Air China

12 Nov

GMP14:25Seoul Gimpo Intl

34h 30m

1 stop

LHR15:55London Heathrow

25 Nov

LHR17:45London Heathrow

34h 20m

1 stop

GMP13:05Seoul Gimpo Intl

£550

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

Tue 20/10

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 2/11

21:30-12:25

1 stop29h 55m

£460

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 21/10

13:30-18:05

1 stop36h 35m

London Heathrow

Wed 4/11

21:30-12:25

1 stop29h 55m

£480

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 12/11

13:30-17:55

1 stop37h 25m

London Heathrow

Wed 25/11

21:30-12:25

1 stop29h 55m

£485

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 21/10

13:30-18:05

1 stop36h 35m

London Heathrow

Wed 28/10

21:30-12:25

1 stop29h 55m

£491

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sat 17/10

13:30-18:05

1 stop36h 35m

London Heathrow

Wed 28/10

21:30-12:25

1 stop29h 55m

£491

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 5/11

13:30-17:55

1 stop37h 25m

London Heathrow

Tue 10/11

21:30-12:25

1 stop29h 55m

£492

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 4/11

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 9/11

21:30-12:25

1 stop29h 55m

£492

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 19/11

13:30-17:55

1 stop37h 25m

London Heathrow

Wed 2/12

21:30-12:25

1 stop29h 55m

£493

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 12/11

13:30-17:55

1 stop37h 25m

London Heathrow

Wed 25/11

21:30-12:25

1 stop29h 55m

£494

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 19/11

13:30-17:55

1 stop37h 25m

London Heathrow

Wed 25/11

21:30-12:25

1 stop29h 55m

£498

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 £604. 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 £757.

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 in the morning. momondo users have found flights departing from Seoul Gimpo Intl Airport to London Heathrow Airport in the morning for as low as £685. 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 at midday when prices are £703 on average. Flights to London Heathrow Airport from Seoul Gimpo Intl Airport at midday 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	£218
Fastest flight time	19h 10m
Direct flights	None

The best one-way flight to London Heathrow Airport from Seoul Gimpo Intl Airport in the past 72 hours is £218. The best return flight deal from Seoul Gimpo Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is £460.

The fastest flight from Seoul Gimpo Intl Airport to London Heathrow Airport takes 19h 10m

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 19h 10m.
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.