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Cheap flights from London Heathrow Airport to Seoul Gimpo Intl Airport from £343

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GMP
14 Jul — 21 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 14 June 2026.

Thu 5/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 11/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 13/6£568
Wed 2/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Wed 9/1213:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 12/6£569
Wed 11/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 25/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 9/6£571
Mon 16/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Thu 26/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 11/6£575
Mon 7/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Tue 20/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 10/6£585
Mon 7/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Wed 21/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 10/6£591
Thu 19/1121:30
LHR
-
GMP
1 stop29h 55m
China Southern
Thu 28/113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 11/6£598
Tue 1/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Mon 7/913:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 12/6£618
Wed 9/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Sun 4/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 10/6£631
Wed 24/621:00
LHR
-
GMP
1 stop31h 25m
China Southern
Wed 15/713:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 13/6£637
Mon 22/621:00
LHR
-
GMP
1 stop31h 25m
China Southern
Fri 3/713:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 11/6£638

Find 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 14 June 2026.

Round-trip from

£568

One-way from

£343

Popular in

May

Cheapest in

November

Average price

£825
China Southern
  • China Southern
  • 5/11-11/11
  • 2 total stops
  • 67h 20m total
  • London to Seoul
Search Deals
China Southern
  • China Southern
  • 15/9
  • 1 total stop
  • 31h 25m total
  • London to Seoul
Search Deals
Highest demand for flights based on searches. 35% potential increase in price (£379 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 27% potential price decrease (£150 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 14 June 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 7/9

09:10-17:55

1 stop24h 45m

Seoul Gimpo Intl

Wed 30/9

19:15-06:25

1 stop19h 10m

£1,364

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 2/9

09:10-10:40

1 stop17h 30m

Seoul Gimpo Intl

Mon 21/9

08:00-06:25

1 stop30h 25m

£1,367
Fastest return journey

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 30/8

09:10-10:40

1 stop17h 30m

Seoul Gimpo Intl

Wed 16/9

19:15-06:25

1 stop19h 10m

£1,367

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 3/9

09:10-10:40

1 stop17h 30m

Seoul Gimpo Intl

Mon 21/9

08:00-06:25

1 stop30h 25m

£1,367

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 20/9

21:35-18:10

2 stops36h 35m

Seoul Gimpo Intl

Tue 6/10

19:15-19:20

2 stops32h 05m

£1,443

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 17/11

21:15-12:45

1 stop30h 30m

Seoul Gimpo Intl

Thu 26/11

13:45-19:15

2 stops38h 30m

£1,455

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 14/9

09:10-17:55

1 stop24h 45m

Seoul Gimpo Intl

Wed 23/9

19:15-06:25

1 stop19h 10m

£1,530

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 11/8

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Tue 25/8

19:15-15:55

1 stop28h 40m

£1,539

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 10/8

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Mon 24/8

19:15-15:55

1 stop28h 40m

£1,545

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 2/10

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Wed 7/10

19:15-15:55

1 stop28h 40m

£1,584

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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

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 £1,364, Japan Airlines can have you in Seoul Gimpo Intl Airport from London Heathrow Airport in 24h 45m. London Heathrow Airport and Seoul Gimpo Intl Airport are separated by a distance of 5506 mi.

  • 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.

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.
Heathrow to Incheon Intl flights
Gatwick to Incheon Intl flights
Stansted to Incheon Intl flights
London City to Incheon Intl flights
Gatwick to Gimpo Intl flights
Luton to Incheon Intl 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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