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Cheap flights from Seoul Gimpo Intl Airport to London Heathrow Airport from £175

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 20/12. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — LHR
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Gimpo Intl to Heathrow

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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 11 November 2025.

Tue 23/1214:25GMP - LHR
1 stop36h 25mAir China
Fri 16/117:40LHR - GMP
1 stop34h 25mAir China
Deal found 9/11£416
Mon 24/1114:25GMP - LHR
1 stop34h 30mAir China
Tue 2/1220:25LHR - GMP
1 stop31h 40mAir China
Deal found 8/11£422
Tue 23/1214:25GMP - LHR
1 stop34h 30mMultiple Airlines
Fri 16/121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 10/11£441
Sun 23/1120:50GMP - LHR
1 stop29h 40mChina Eastern
Thu 27/1121:00LHR - GMP
1 stop29h 00mChina Eastern
Deal found 9/11£449
Wed 24/1214:25GMP - LHR
1 stop34h 30mAir China
Wed 31/1220:25LHR - GMP
1 stop31h 40mAir China
Deal found 9/11£450
Tue 23/1214:25GMP - LHR
1 stop36h 25mAir China
Mon 5/120:25LHR - GMP
1 stop31h 40mAir China
Deal found 9/11£457
Tue 2/1214:25GMP - LHR
1 stop34h 30mAir China
Thu 4/1220:25LHR - GMP
1 stop31h 40mAir China
Deal found 10/11£469
Sun 23/1114:25GMP - LHR
1 stop36h 25mAir China
Sun 30/1120:25LHR - GMP
1 stop31h 40mAir China
Deal found 10/11£472
Sat 29/1114:25GMP - LHR
1 stop34h 30mAir China
Wed 3/1217:40LHR - GMP
1 stop34h 25mAir China
Deal found 9/11£480
Sun 14/1214:25GMP - LHR
1 stop36h 25mAir China
Tue 23/1217:40LHR - GMP
1 stop34h 25mAir China
Deal found 10/11£482
Sun 23/1107:00GMP - LHR
2 stops41h 55mMultiple Airlines
Sun 30/1120:25LHR - GMP
1 stop31h 40mMultiple Airlines
Deal found 10/11£485
Tue 11/1120:50GMP - LHR
1 stop29h 40mMultiple Airlines
Sat 15/1121:30LHR - GMP
1 stop29h 55mMultiple Airlines
Deal found 10/11£490

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 11 November 2025.

Round-trip from

£416

One-way from

£175

Popular in

October

Cheapest in

March

Average price

£526
Air China
  • Air China
  • 23/12-16/1
  • 2 total stops
  • 70h 50m total
  • Seoul to London
Search Deals
20/12
  • 20/12
  • 2 total stops
  • 35h 40m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 11 November 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

Mon 2/3

14:25-17:50

1 stop36h 25m

London Heathrow

Wed 11/3

17:40-13:05

1 stop34h 25m

£419

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 17/12

14:25-17:50

1 stop36h 25m

London Heathrow

Mon 5/1

20:25-13:05

1 stop31h 40m

£447

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 21/1

14:25-17:50

1 stop36h 25m

London Heathrow

Fri 23/1

21:30-12:25

1 stop29h 55m

£451

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 14/1

13:30-17:55

1 stop37h 25m

London Heathrow

Sun 25/1

21:30-12:25

1 stop29h 55m

£458

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 14/1

13:30-17:55

1 stop37h 25m

London Heathrow

Tue 20/1

21:30-12:25

1 stop29h 55m

£463

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 14/1

13:30-17:55

1 stop37h 25m

London Heathrow

Mon 19/1

21:30-12:25

1 stop29h 55m

£463

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 15/12

14:25-15:55

1 stop34h 30m

London Heathrow

Sun 4/1

20:25-13:05

1 stop31h 40m

£493

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 4/3

13:30-17:55

1 stop37h 25m

London Heathrow

Thu 19/3

21:30-12:25

1 stop29h 55m

£507

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 23/12

14:25-17:50

1 stop36h 25m

London Heathrow

Tue 30/12

21:30-12:25

1 stop29h 55m

£513

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/12

14:25-15:55

1 stop34h 30m

London Heathrow

Sun 4/1

17:40-13:05

1 stop34h 25m

£520

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 21 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.

Cheapflights Insights

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

How often are flights from Seoul to London delayed?

About 0% of weekly flights between Seoul and London have experienced delays in the past year, with the average delay time being 0 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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

Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Seoul to London flights?

Over the past year, Korean Air have had the lowest number of delays on this route, with no flights being classified as delayed.

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 Air China and China Southern fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 36h 25m. The time it takes to get you to your destination can typically vary by up to 1h. The distance from Seoul Gimpo Intl Airport to London Heathrow Airport is about 5506 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    For one-way options, check prices for Air China. According to our data, you can fly for as low as £178. Users have also found prices from £182 and £199 on China Eastern and China Southern, respectively.

  • 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.

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
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
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Chichester
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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 Stansted flights
Incheon Intl to London City flights
Gimpo Intl to London City flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Gimpo Intl to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Gimpo Intl to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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