What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

How often are flights from Seoul to London delayed?

Historically, on average around 0% of flights between Seoul and London have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

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

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

What is the most punctual flight time for Seoul to London flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

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.

£164 Cheap Flights from Seoul Gimpo Intl Airport to London Heathrow Airport in 2026

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Find the cheapest flights from Seoul Gimpo Intl Airport to London

Round-trip

One-way

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Cheap return flights

Enter your travel dates to find the best prices.

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£383China Southern

Wed, 13 May - Mon, 25 May

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£383China Southern

Tue, 2 Jun - Mon, 15 Jun

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£386China Southern

Mon, 11 May - Tue, 26 May

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£504China Southern

Tue, 12 May - Thu, 11 Jun

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£518China Southern

Sat, 6 Jun - Sat, 20 Jun

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£528China Southern

Fri, 8 May - Mon, 18 May

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£530China Southern

Tue, 12 May - Mon, 25 May

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£530China Southern

Fri, 8 May - Sun, 17 May

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£533China Southern

Fri, 19 Jun - Sun, 21 Jun

13:30 - 18:05

GMP

LHR

36h 35m

1 stop

21:00 - 12:25

LHR

GMP

31h 25m

1 stop

£534China Southern

Fri, 19 Jun - Sun, 21 Jun

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

5 Sept

GMP14:25Seoul Gimpo Intl

35h 15m

1 stop

LHR17:40London Heathrow

11 Sept

LHR20:25London Heathrow

32h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£608

Air China

7 May

GMP14:25Seoul Gimpo Intl

35h 15m

1 stop

LHR17:40London Heathrow

20 May

LHR20:25London Heathrow

32h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£638

Air China

7 May

GMP14:25Seoul Gimpo Intl

35h 15m

1 stop

LHR17:40London Heathrow

20 May

LHR20:25London Heathrow

32h 40m

1 stop

GMP13:05Seoul Gimpo Intl

£639

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

13 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

£383

China Southern

2 Jun

GMP13:30Seoul Gimpo Intl

36h 35m

1 stop

LHR18:05London Heathrow

15 Jun

LHR21:00London Heathrow

31h 25m

1 stop

GMP12:25Seoul Gimpo Intl

£383

China Southern

11 May

GMP13:30Seoul Gimpo Intl

36h 35m

1 stop

LHR18:05London Heathrow

26 May

LHR21:00London Heathrow

31h 25m

1 stop

GMP12:25Seoul Gimpo Intl

£386

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 - LHR

GMPLHR

Seoul Gimpo Intl

Wed 13/5

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 25/5

21:00-12:25

1 stop31h 25m

£383

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 2/6

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 15/6

21:00-12:25

1 stop31h 25m

£383

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 11/5

13:30-18:05

1 stop36h 35m

London Heathrow

Tue 26/5

21:00-12:25

1 stop31h 25m

£386

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 12/5

13:30-18:05

1 stop36h 35m

London Heathrow

Thu 11/6

21:00-12:25

1 stop31h 25m

£504

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sat 6/6

13:30-18:05

1 stop36h 35m

London Heathrow

Sat 20/6

21:00-12:25

1 stop31h 25m

£518

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 8/5

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 18/5

21:00-12:25

1 stop31h 25m

£528

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 12/5

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 25/5

21:00-12:25

1 stop31h 25m

£530

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 8/5

13:30-18:05

1 stop36h 35m

London Heathrow

Sun 17/5

21:00-12:25

1 stop31h 25m

£530

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 19/6

13:30-18:05

1 stop36h 35m

London Heathrow

Sun 21/6

21:00-12:25

1 stop31h 25m

£533

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 19/6

13:30-18:05

1 stop36h 35m

London Heathrow

Sun 21/6

21:00-12:25

1 stop31h 25m

£534

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

Delays

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 £506. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £699.

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	20h 20m
Direct flights	None

The fastest flight from Seoul Gimpo Intl Airport to London Heathrow Airport takes 20h 20m

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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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 20h 20m.
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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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.