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Cheap flights from London Heathrow Airport to Seoul Gimpo Intl Airport from £248

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GMP
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Gimpo Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Gimpo Intl (GMP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 6 November 2025.

Round-trip from

£342

One-way from

£248

Popular in

August

Cheapest in

November

Average price

£367
China Eastern
  • China Eastern
  • 20/11-27/11
  • 2 total stops
  • 58h 40m total
  • London to Seoul
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China Eastern
  • China Eastern
  • 16/11
  • 1 total stop
  • 29h 00m total
  • London to Seoul
Search Deals
Highest demand for flights based on searches. 41% potential increase in price (£451 potential increase over avg. return price).
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Cheapest flight prices on average. 17% potential price decrease (£96 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Heathrow to Gimpo Intl

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Gimpo Intl
Explore the most affordable flight options available from Heathrow to Gimpo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Thu 20/1121:00LHR - GMP
1 stop29h 00mChina Eastern
Thu 27/1120:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 4/11£342
Mon 1/1221:00LHR - GMP
1 stop29h 00mChina Eastern
Mon 8/1220:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 3/11£348
Thu 4/1221:00LHR - GMP
1 stop29h 00mChina Eastern
Thu 11/1220:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 4/11£351
Mon 24/1121:00LHR - GMP
1 stop29h 00mChina Eastern
Mon 8/1220:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 3/11£358
Wed 3/1221:30LHR - GMP
1 stop29h 55mChina Southern
Wed 24/1213:30GMP - LHR
1 stop37h 25mChina Southern
Deal found 5/11£367
Mon 1/1221:00LHR - GMP
1 stop29h 00mChina Eastern
Tue 9/1220:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 4/11£371
Mon 17/1121:00LHR - GMP
1 stop29h 00mChina Eastern
Fri 28/1120:50GMP - LHR
1 stop29h 40mChina Eastern
Deal found 3/11£372
Wed 12/1121:30LHR - GMP
1 stop29h 55mChina Southern
Wed 26/1113:30GMP - LHR
1 stop37h 25mChina Southern
Deal found 3/11£373
Mon 10/1121:30LHR - GMP
1 stop29h 55mChina Southern
Thu 20/1113:30GMP - LHR
1 stop37h 25mChina Southern
Deal found 3/11£374
Tue 18/1121:30LHR - GMP
1 stop29h 55mChina Southern
Wed 3/1213:30GMP - LHR
1 stop37h 25mChina Southern
Deal found 4/11£374
Wed 3/1221:30LHR - GMP
1 stop29h 55mChina Southern
Thu 11/1213:30GMP - LHR
1 stop37h 25mChina Southern
Deal found 3/11£375

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Gimpo Intl 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, Cheapflights users made 858,174 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Seoul Gimpo Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Gimpo Intl

Route

Depart

Return

Price

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 19/11

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 17/12

13:30-17:55

1 stop37h 25m

£390

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 10/2

17:40-13:05

1 stop34h 25m

Seoul Gimpo Intl

Tue 17/3

14:25-17:50

1 stop36h 25m

£531

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 18/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Sun 25/1

10:05-17:30

2 stops40h 25m

£535

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sat 25/4

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Sat 2/5

13:25-18:05

1 stop36h 40m

£631

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 1/4

07:45-14:10

2 stops22h 25m

Seoul Gimpo Intl

Wed 8/4

14:25-17:45

1 stop35h 20m

£638

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 7/4

21:00-12:25

1 stop31h 25m

Seoul Gimpo Intl

Tue 14/4

13:25-18:05

1 stop36h 40m

£659

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 6/1

18:30-22:05

1 stop18h 35m

Seoul Gimpo Intl

Sun 18/1

19:40-15:15

1 stop28h 35m

£823

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 2/12

18:30-18:20

1 stop38h 50m

Seoul Gimpo Intl

Tue 9/12

19:40-15:15

1 stop28h 35m

£823

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 6/1

08:35-18:20

1 stop24h 45m

Seoul Gimpo Intl

Mon 19/1

12:05-06:25

1 stop27h 20m

£823

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 20/11

08:35-18:20

1 stop24h 45m

Seoul Gimpo Intl

Mon 15/12

19:40-15:15

1 stop28h 35m

£828

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 23 results
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Best time to book a flight from Heathrow to Gimpo Intl

Have a flexible travel schedule? Discover the best time to fly to Gimpo Intl from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Seoul Gimpo Intl Airport

What is the cheapest month to book a flight from London Heathrow Airport to Seoul Gimpo Intl Airport?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul Gimpo Intl Airport (average of £344). Flying from London Heathrow Airport to Seoul Gimpo Intl Airport in April is currently the most expensive (average of £1,415). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from London Heathrow Airport to Seoul Gimpo Intl Airport?

Reviews of airlines servicing Gimpo Intl

Get insights into the airlines that provide service to Gimpo Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Gimpo Intl. Reviews last updated 6 November 2025.
Get a feel of what it's like to fly with Japan Airlines, China Southern, andAir China from London Heathrow Airport to Seoul Gimpo Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very Good
1,604 reviews
Check prices

Boarding

8.4

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Brian,Sept 2025

HNL - NRT

Extremely fast boarding. Great food. Polite flight attendants. Leg space in regular economy is the largest I have experienced.
Japan Airlines
8.3
Very Good
1,604 reviews
Japan Airlines
8.3
Very Good
1,604 reviews
Check prices

Boarding

8.4

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Brian,Sept 2025

HNL - NRT

Extremely fast boarding. Great food. Polite flight attendants. Leg space in regular economy is the largest I have experienced.
China Southern
7.5
Good
119 reviews
Japan Airlines
8.3
Very Good
1,604 reviews
Check prices

Boarding

8.4

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Brian,Sept 2025

HNL - NRT

Extremely fast boarding. Great food. Polite flight attendants. Leg space in regular economy is the largest I have experienced.
Air China
7.1
Good
122 reviews
Japan Airlines
8.3
Very Good
1,604 reviews
Check prices

Boarding

8.4

Food

7.7

Comfort

8.2

Entertainment

7.8

Overall

8.3

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Brian,Sept 2025

HNL - NRT

Extremely fast boarding. Great food. Polite flight attendants. Leg space in regular economy is the largest I have experienced.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Gimpo Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Seoul Gimpo Intl Airport?

    For as low as £390, China Southern can have you in Seoul Gimpo Intl Airport from London Heathrow Airport in 29h 55m. London Heathrow Airport and Seoul Gimpo Intl Airport are separated by a distance of 5506 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Seoul Gimpo Intl Airport round-trip?

    Flying on China Southern is currently your cheapest option to Seoul Gimpo Intl Airport, with prices starting at £340. Additional return tickets that might be worth considering are offered by Air China and Japan Airlines, with the lowest prices starting at £367 and £1,016, respectively. China Southern is priced at 59% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Seoul Gimpo Intl Airport one-way?

    £248 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on China Southern and Air China, with prices starting from £266 and £334, respectively.

  • Can I find deals for flights from Heathrow to Gimpo Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to Gimpo Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Gimpo Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Gimpo Intl.

  • Can I find deals for business class flights from Heathrow to Gimpo Intl?

    Yes. Cheapflights offers flight deals from Heathrow to Gimpo Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Seoul Gimpo Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Seoul Gimpo Intl Airport (average of £344). Flying from London Heathrow Airport to Seoul Gimpo Intl Airport in April is currently the most expensive (average of £1,415). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to Gimpo Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Gatwick to Gimpo Intl flights

Top 3 airlines flying from Heathrow to Gimpo Intl

Discover the top 3 airlines that operate flights from Heathrow to Gimpo Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£340Average£436FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£367Average£707FlexibilityNo cancel feeOn-time67%
Search Air China flights
Japan AirlinesCheapest£1,016Average£1,978FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Gimpo Intl?

Cheapflights helps you search for flights from Heathrow to Gimpo Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Gimpo Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Gimpo Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Heathrow to Gimpo Intl with no change fees?

Certainly. Search results for flights to Gimpo Intl from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Gimpo Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Gimpo Intl from Heathrow today and book when prices fit your budget.

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