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Cheap flights from Seoul Gimpo Intl Airport to London Heathrow Airport from £227

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — LHR
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Gimpo Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Gimpo Intl (GMP) to Heathrow (LHR). 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 19 August 2025.

Round-trip from

£501

One-way from

£227

Popular in

April

Cheapest in

May

Average price

£627
China Eastern
  • China Eastern
  • 11/10-16/10
  • 2 total stops
  • 66h 15m total
  • Seoul to London
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20/10
  • 20/10
  • 2 total stops
  • 43h 30m total
  • Seoul to London
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Gimpo Intl to Heathrow

Cheapest flights from Gimpo Intl to Heathrow
Explore the most affordable flight options available from Gimpo Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Sat 11/1013:30GMP - LHR
1 stop36h 35mMultiple Airlines
Thu 16/1021:20LHR - GMP
1 stop29h 40mMultiple Airlines
Deal found 18/8£501
Fri 24/1014:25GMP - LHR
1 stop14h 05mMultiple Airlines
Sun 2/1121:00LHR - GMP
1 stop29h 00mMultiple Airlines
Deal found 18/8£502
Tue 2/914:25GMP - LHR
1 stop35h 20mMultiple Airlines
Mon 8/921:20LHR - GMP
1 stop29h 40mMultiple Airlines
Deal found 18/8£503
Thu 21/812:00GMP - LHR
1 stop38h 40mChina Eastern
Sat 6/921:20LHR - GMP
1 stop29h 40mChina Eastern
Deal found 17/8£508
Fri 26/1213:45GMP - LHR
1 stop37h 10mChina Southern
Sat 3/121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 18/8£508
Sat 25/1013:30GMP - LHR
1 stop37h 25mChina Southern
Fri 31/1021:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 17/8£509
Wed 10/914:25GMP - LHR
1 stop14h 05mMultiple Airlines
Tue 16/921:20LHR - GMP
1 stop29h 40mMultiple Airlines
Deal found 17/8£510
Sun 7/914:25GMP - LHR
1 stop14h 05mMultiple Airlines
Sat 13/921:20LHR - GMP
1 stop29h 40mMultiple Airlines
Deal found 18/8£511
Fri 26/1213:45GMP - LHR
1 stop37h 10mChina Southern
Thu 8/121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 17/8£512
Wed 24/1213:45GMP - LHR
1 stop37h 10mChina Southern
Sat 3/121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 17/8£513

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gimpo Intl to Heathrow 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 19 August 2025.
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

Gimpo Intl

Fly to

Heathrow

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sat 11/10

13:30-18:05

1 stop36h 35m

London Heathrow

Thu 16/10

21:20-11:00

1 stop29h 40m

£501

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 24/10

14:25-20:30

1 stop14h 05m

London Heathrow

Sun 2/11

21:00-11:00

1 stop29h 00m

£502

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sat 27/12

13:45-17:55

1 stop37h 10m

London Heathrow

Sat 3/1

21:30-12:25

1 stop29h 55m

£509

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/12

13:45-17:55

1 stop37h 10m

London Heathrow

Sat 3/1

21:30-12:25

1 stop29h 55m

£510

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 7/9

14:25-20:30

1 stop14h 05m

London Heathrow

Sat 13/9

21:20-11:00

1 stop29h 40m

£511

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 10/9

14:25-20:30

1 stop14h 05m

London Heathrow

Tue 16/9

21:20-11:00

1 stop29h 40m

£511

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 8/9

13:30-18:05

1 stop36h 35m

London Heathrow

Mon 15/9

21:00-12:25

1 stop31h 25m

£512

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 26/12

13:45-17:55

1 stop37h 10m

London Heathrow

Thu 8/1

21:30-12:25

1 stop29h 55m

£512

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Sun 21/12

13:45-17:55

1 stop37h 10m

London Heathrow

Tue 6/1

21:30-12:25

1 stop29h 55m

£513

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 26/12

13:45-17:55

1 stop37h 10m

London Heathrow

Sat 10/1

21:30-12:25

1 stop29h 55m

£513

Flights are sorted by cheapest return flights first.

Deals found on 17/8

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

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Gimpo Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Gimpo Intl to Heathrow. 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 Seoul Gimpo Intl Airport to London Heathrow Airport?

    Airlines like China Southern fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 37h 10m. The time it takes to get you to your destination can typically vary by up to . The distance from Seoul Gimpo Intl Airport to London Heathrow Airport is about 5506 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gimpo Intl to Heathrow 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 Seoul Gimpo Intl Airport to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Seoul Gimpo Intl Airport to London Heathrow Airport (average of £112). Flying from Seoul Gimpo Intl Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Deal
Luton
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Winchester
Swindon
Eastbourne
Chichester
Southend-on-Sea

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Alternative routes for Gimpo Intl to Heathrow

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

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

Yes, we can. To see specific flights from Gimpo Intl to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Gimpo Intl to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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