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Cheap flights from Seoul Gimpo Intl Airport to London Heathrow Airport from £158

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
GMP — LHR
5 May — 12 May1
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 30 April 2025.

Round-trip from

£381

One-way from

£158

Popular in

September

Cheapest in

November

Average price

£753
China Southern
  • China Southern
  • 9/6-20/6
  • 2 total stops
  • 68h 00m total
  • Seoul to London
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China Eastern
  • China Eastern
  • 23/5
  • 1 total stop
  • 29h 50m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 2025.

Mon 9/613:30GMP - LHR
1 stop36h 35mChina Southern
Fri 20/621:00LHR - GMP
1 stop31h 25mChina Southern
Deal found 29/4£381
Mon 19/512:00GMP - LHR
1 stop38h 40mChina Eastern
Mon 2/621:20LHR - GMP
1 stop29h 40mChina Eastern
Deal found 29/4£382
Tue 13/520:50GMP - LHR
1 stop29h 50mMultiple Airlines
Tue 17/621:00LHR - GMP
1 stop31h 25mMultiple Airlines
Deal found 29/4£418
Thu 15/514:25GMP - LHR
1 stop35h 20mAir China
Thu 22/522:40LHR - GMP
1 stop30h 25mAir China
Deal found 28/4£422

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 30 April 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 9/6

13:30-18:05

1 stop36h 35m

London Heathrow

Fri 20/6

21:00-12:25

1 stop31h 25m

£381

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 19/5

12:00-18:40

1 stop38h 40m

London Heathrow

Mon 2/6

21:20-11:00

1 stop29h 40m

£382

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 13/5

20:50-18:40

1 stop29h 50m

London Heathrow

Tue 17/6

21:00-12:25

1 stop31h 25m

£418

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 15/5

14:25-17:45

1 stop35h 20m

London Heathrow

Thu 22/5

22:40-13:05

1 stop30h 25m

£422

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 23/5

20:50-18:40

1 stop29h 50m

£158

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 9/6

13:30-18:05

1 stop36h 35m

£160

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 21/5

20:05-18:40

2 stops54h 35m

£196

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 26/5

14:25-17:45

1 stop35h 20m

£227

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 6/6

13:50-19:20

1 stop37h 30m

£306

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 30 April 2025.
To help decide which airline to fly from Seoul to London, see what other customers have to say about EVA Air, China Southern and China Eastern. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very Good
1,186 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Southern
7.5
Good
96 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Eastern
7.1
Good
148 reviews
EVA Air
8.4
Very Good
1,186 reviews
Check prices

Boarding

8.4

Overall

8.4

Comfort

8.3

Crew

8.6

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

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.

  • 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 China Eastern. According to our data, you can fly for as low as £158. Users have also found prices from £160 and £227 on China Southern and Air China, 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.

  • 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 Seoul Gimpo Intl Airport?

Book flights to Seoul Gimpo Intl Airport if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Northampton
Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
Maidstone
Winchester
Swindon
Folkestone
Dartford

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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

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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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