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Cheap flights from London Heathrow Airport to Seoul Gimpo Intl Airport from £345

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — GMP
9 Aug — 16 Aug1
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 10 July 2026.

Tue 25/822:40
LHR
-
GMP
1 stop30h 25m
Air China
Wed 9/914:25
GMP
-
LHR
1 stop35h 15m
Air China
Deal found 8/7£597
Tue 1/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Tue 8/913:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 8/7£601
Sun 4/1021:00
LHR
-
GMP
1 stop31h 25m
China Southern
Sun 11/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 8/7£613
Wed 2/1221:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 16/1213:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/7£614
Fri 30/1021:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 25/1113:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 8/7£615
Tue 1/1221:30
LHR
-
GMP
1 stop29h 55m
China Southern
Wed 16/1213:30
GMP
-
LHR
1 stop37h 25m
China Southern
Deal found 6/7£620
Wed 11/1121:30
LHR
-
GMP
1 stop29h 55m
Multiple Airlines
Tue 24/1114:25
GMP
-
LHR
1 stop34h 30m
Multiple Airlines
Deal found 5/7£624
Sat 5/921:00
LHR
-
GMP
1 stop31h 25m
China Southern
Thu 10/913:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 9/7£625
Fri 20/1121:30
LHR
-
GMP
1 stop29h 55m
Multiple Airlines
Tue 1/1214:25
GMP
-
LHR
1 stop34h 30m
Multiple Airlines
Deal found 6/7£626
Mon 12/1021:00
LHR
-
GMP
1 stop31h 25m
China Southern
Mon 19/1013:30
GMP
-
LHR
1 stop36h 35m
China Southern
Deal found 5/7£627

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 10 July 2026.

Round-trip from

£581

One-way from

£345

Popular in

May

Cheapest in

November

Average price

£1,058
China Southern
  • China Southern
  • 21/11-26/11
  • 2 total stops
  • 67h 20m total
  • London to Seoul
Search Deals
China Southern
  • China Southern
  • 20/9
  • 1 total stop
  • 31h 25m total
  • London to Seoul
Search Deals
Highest demand for flights based on searches. 34% potential increase in price (£389 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 23% potential price decrease (£145 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 10 July 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

Wed 26/8

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Wed 9/9

19:15-15:55

1 stop28h 40m

£1,357

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 20/8

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Tue 25/8

08:00-06:25

1 stop30h 25m

£1,368

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Thu 27/8

19:20-21:15

1 stop17h 55m

Seoul Gimpo Intl

Sun 6/9

08:00-06:25

1 stop30h 25m

£1,426

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 2/9

09:10-17:55

1 stop24h 45m

Seoul Gimpo Intl

Mon 21/9

08:00-06:25

1 stop30h 25m

£1,428

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Wed 26/8

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Sun 6/9

08:00-06:25

1 stop30h 25m

£1,466
Fastest return journey

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 6/9

09:10-17:55

1 stop24h 45m

Seoul Gimpo Intl

Thu 17/9

19:15-06:25

1 stop19h 10m

£1,499

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Fri 28/8

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Sun 6/9

08:00-06:25

1 stop30h 25m

£1,511

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 8/9

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Thu 17/9

19:15-06:25

1 stop19h 10m

£1,538

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Mon 7/9

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Mon 14/9

19:15-06:25

1 stop19h 10m

£1,538

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Sun 6/9

09:10-21:15

1 stop28h 05m

Seoul Gimpo Intl

Fri 18/9

19:15-15:55

1 stop28h 40m

£1,578

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 22 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

What’s the top stopover airport for flights from London Heathrow Airport to Seoul Gimpo Intl Airport?

Share of one-stop return flights from London Heathrow Airport to Seoul Gimpo Intl Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Beijing (PEK) – chosen by Cheapflights users on 82% of one-stop itineraries from London Heathrow Airport to Seoul Gimpo Intl Airport on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Seoul Gimpo Intl Airport?

Average return fare for one-stop flights from London Heathrow Airport to Seoul Gimpo Intl Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Beijing (PKX) is the most affordable one-stop option, with an average return flight price of £487.

What’s the fastest stopover option from London Heathrow Airport to Seoul Gimpo Intl Airport?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Seoul Gimpo Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Tokyo (HND) have the shortest average one-way travel time for one-stop routes: 22h 45m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Seoul Gimpo Intl Airport?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to Seoul Gimpo Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Tokyo (HND) offer the fastest connection on this route, with an average stopover time of 4h 49m.

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 £1,357, Japan Airlines can have you in Seoul Gimpo Intl Airport from London Heathrow Airport in 28h 05m. 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.
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Gatwick to Gimpo Intl flights

Fly with Cheapflights

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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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