How long is the flight from Seoul Gimpo Intl Airport to London Heathrow Airport?

Airlines like China Southern and Air China fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 34h 30m. The time it takes to get you to your destination can typically vary by up to 2h 40m. 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 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.

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.

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).

How far in advance should I book a flight from Seoul Gimpo Intl Airport to London Heathrow Airport?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 25 days in advance, which can save you up to 55% on flights from Seoul Gimpo Intl Airport to London Heathrow Airport compared to booking the week you need them. Waiting 25 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £519. For sooner than that we have options available in the next 3 days from £522.

What is the cheapest month to fly from Seoul Gimpo Intl Airport to London Heathrow Airport?

The best pricing can be found in the month of December. Prices to London Heathrow Airport from Seoul Gimpo Intl Airport average £570. You can even find prices in December for less than £570, as users have found deals to London Heathrow Airport from as low as £319. The month of April appears to be one of the more expensive times to travel to London Heathrow Airport from Seoul Gimpo Intl Airport. Flying in the targeted month can save you up to 31%.

What is the cheapest time of day to fly from GMP to LHR?

When flying from Seoul Gimpo Intl Airport to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£215+ Flights from Seoul Gimpo Intl Airport to London Heathrow Airport

Cheap flight deals from Gimpo Intl to Heathrow

Round-trip from	£447
One-way from	£215
Popular in	April
Cheapest in	December
Average price	£678

China Southern
16/12-3/1
2 total stops
67h 05m total
Seoul to London

Search Deals

China Eastern
29/9
1 total stop
29h 50m total
Seoul to London

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£7 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 16 September 2025.

Tue 16/1213:45GMP - LHR

1 stop37h 10mChina Southern

Sat 3/121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£447

Mon 3/1113:45GMP - LHR

1 stop37h 10mChina Southern

Sun 16/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£448

Thu 18/1213:45GMP - LHR

1 stop37h 10mChina Southern

Sun 28/1221:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£456

Sat 15/1114:25GMP - LHR

1 stop36h 25mMultiple Airlines

Sat 22/1121:30LHR - GMP

1 stop29h 55mMultiple Airlines

Deal found 15/9£465

Fri 14/1113:45GMP - LHR

1 stop37h 10mChina Southern

Tue 18/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£486

Wed 24/1214:25GMP - LHR

1 stop34h 30mMultiple Airlines

Tue 30/1221:30LHR - GMP

1 stop29h 55mMultiple Airlines

Deal found 14/9£490

Mon 1/1214:25GMP - LHR

1 stop34h 30mAir China

Wed 3/1220:25LHR - GMP

1 stop31h 40mAir China

Deal found 15/9£506

Fri 19/1213:45GMP - LHR

1 stop37h 10mMultiple Airlines

Thu 1/117:40LHR - GMP

1 stop34h 25mMultiple Airlines

Deal found 15/9£514

Thu 30/1013:45GMP - LHR

1 stop37h 10mChina Southern

Thu 6/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£515

Fri 21/1113:45GMP - LHR

1 stop37h 10mChina Southern

Mon 24/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 14/9£522

Sat 15/1113:45GMP - LHR

1 stop37h 10mChina Southern

Sat 29/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 14/9£525

Fri 21/1113:45GMP - LHR

1 stop37h 10mChina Southern

Thu 27/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£528

Best flights from Gimpo Intl to Heathrow
Discover carefully curated flight deals from Gimpo Intl to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Wed 24/1214:25GMP - LHR

1 stop34h 30mMultiple Airlines

Tue 30/1221:30LHR - GMP

1 stop29h 55mMultiple Airlines

Deal found 14/9£490

Fri 21/1113:45GMP - LHR

1 stop37h 10mChina Southern

Mon 24/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 14/9£522

Thu 12/314:25GMP - LHR

1 stop34h 30mAir China

Mon 16/320:25LHR - GMP

1 stop31h 40mAir China

Deal found 15/9£564

Fri 19/1213:45GMP - LHR

1 stop37h 10mMultiple Airlines

Thu 1/117:40LHR - GMP

1 stop34h 25mMultiple Airlines

Deal found 15/9£514

Fri 19/1213:45GMP - LHR

1 stop37h 10mChina Southern

Fri 2/121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£618

Wed 15/1014:25GMP - LHR

1 stop14h 05mMultiple Airlines

Sun 19/1021:00LHR - GMP

1 stop31h 25mMultiple Airlines

Deal found 15/9£620

Thu 9/1014:25GMP - LHR

1 stop14h 05mAir China

Wed 15/1022:40LHR - GMP

1 stop30h 25mAir China

Deal found 15/9£703

Mon 13/1013:30GMP - LHR

2 stops37h 30mChina Southern

Mon 20/1021:00LHR - GMP

1 stop31h 25mChina Southern

Deal found 15/9£660

Tue 14/1014:25GMP - LHR

1 stop14h 05mMultiple Airlines

Tue 21/1007:05LHR - GMP

2 stops22h 00mMultiple Airlines

Deal found 14/9£639

Thu 25/1213:45GMP - LHR

1 stop37h 10mChina Southern

Thu 1/121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£695

Thu 18/1213:45GMP - LHR

1 stop37h 10mChina Southern

Sun 28/1217:15LHR - GMP

2 stops34h 10mChina Southern

Deal found 15/9£759

Last-minute flights from Gimpo Intl to Heathrow
Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 16 September 2025 and is based on user searches.

Thu 9/1014:25GMP - LHR

1 stop14h 05mAir China

Wed 15/1022:40LHR - GMP

1 stop30h 25mAir China

Deal found 15/9£703

Thu 9/1013:30GMP - LHR

1 stop36h 35mChina Southern

Wed 15/1021:00LHR - GMP

1 stop31h 25mChina Southern

Deal found 14/9£762

Sun 12/1013:30GMP - LHR

2 stops37h 30mChina Southern

Thu 23/1021:00LHR - GMP

1 stop31h 25mChina Southern

Deal found 14/9£659

Tue 14/1014:25GMP - LHR

1 stop14h 05mMultiple Airlines

Tue 21/1007:05LHR - GMP

2 stops22h 00mMultiple Airlines

Deal found 14/9£639

Tue 14/1013:30GMP - LHR

1 stop36h 35mChina Southern

Sat 18/1021:00LHR - GMP

1 stop31h 25mChina Southern

Deal found 14/9£712

Wed 15/1013:30GMP - LHR

1 stop36h 35mChina Southern

Tue 21/1021:00LHR - GMP

1 stop31h 25mChina Southern

Deal found 15/9£550

Wed 15/1014:25GMP - LHR

1 stop14h 05mMultiple Airlines

Sun 19/1021:00LHR - GMP

1 stop31h 25mMultiple Airlines

Deal found 15/9£620

Wed 15/1009:00GMP - LHR

2 stops19h 30mMultiple Airlines

Wed 22/1022:40LHR - GMP

1 stop30h 25mMultiple Airlines

Deal found 14/9£689

Sat 25/1014:25GMP - LHR

1 stop14h 05mMultiple Airlines

Wed 5/1118:50LHR - GMP

2 stops33h 15mMultiple Airlines

Deal found 14/9£561

Thu 30/1013:45GMP - LHR

1 stop37h 10mChina Southern

Thu 6/1121:30LHR - GMP

1 stop29h 55mChina Southern

Deal found 15/9£515

One-way flights from Gimpo Intl to Heathrow
Search for one-way flight options from Gimpo Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Mon 29/920:50GMP - LHR

1 stop29h 50mChina Eastern

Deal found 15/9£215

Wed 29/1015:00GMP - LHR

2 stops35h 30mMultiple Airlines

Deal found 14/9£231

Wed 29/1013:45GMP - LHR

1 stop37h 10mChina Southern

Deal found 14/9£250

Fri 7/1114:25GMP - LHR

1 stop34h 30mAir China

Deal found 14/9£257

Sun 28/920:50GMP - LHR

1 stop29h 50mChina Eastern

Deal found 14/9£278

Thu 30/1014:25GMP - LHR

1 stop34h 30mAir China

Deal found 15/9£280

Mon 3/1114:25GMP - LHR

1 stop34h 30mAir China

Deal found 14/9£282

Fri 19/1218:05GMP - LHR

3 stops32h 50mMultiple Airlines

Deal found 15/9£289

Tue 28/1019:55GMP - LHR

3 stops31h 00mMultiple Airlines

Deal found 14/9£290

Wed 22/1006:15GMP - LHR

2 stops22h 15mMultiple Airlines

Deal found 14/9£293

Wed 15/1006:15GMP - LHR

2 stops22h 15mMultiple Airlines

Deal found 15/9£294

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 24/12

14:25-15:55

1 stop34h 30m

London Heathrow

Tue 30/12

21:30-12:25

1 stop29h 55m

£490

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 19/12

13:45-17:55

1 stop37h 10m

London Heathrow

Thu 1/1

17:40-13:05

1 stop34h 25m

£514

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 21/11

13:45-17:55

1 stop37h 10m

London Heathrow

Mon 24/11

21:30-12:25

1 stop29h 55m

£522

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 12/3

14:25-15:55

1 stop34h 30m

London Heathrow

Mon 16/3

20:25-13:05

1 stop31h 40m

£564

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 19/12

13:45-17:55

1 stop37h 10m

London Heathrow

Fri 2/1

21:30-12:25

1 stop29h 55m

£618

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 15/10

14:25-20:30

1 stop14h 05m

London Heathrow

Sun 19/10

21:00-12:25

1 stop31h 25m

£620

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Tue 14/10

14:25-20:30

1 stop14h 05m

London Heathrow

Tue 21/10

07:05-13:05

2 stops22h 00m

£639

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Mon 13/10

13:30-19:00

2 stops37h 30m

London Heathrow

Mon 20/10

21:00-12:25

1 stop31h 25m

£660

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 25/12

13:45-17:55

1 stop37h 10m

London Heathrow

Thu 1/1

21:30-12:25

1 stop29h 55m

£695

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Thu 9/10

14:25-20:30

1 stop14h 05m

London Heathrow

Wed 15/10

22:40-13:05

1 stop30h 25m

£703

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 21 results

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

How long is the flight from Seoul Gimpo Intl Airport to London Heathrow Airport?
Airlines like China Southern and Air China fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 34h 30m. The time it takes to get you to your destination can typically vary by up to 2h 40m. 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.
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.

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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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Cheap flights from Seoul Gimpo Intl Airport to London Heathrow Airport from £215

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Gimpo Intl to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Gimpo Intl to Heathrow

Cheapest flights from Gimpo Intl to HeathrowExplore 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 16 September 2025.

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 16 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seoul Gimpo Intl Airport to London Heathrow Airport that are best for you.

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.

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?

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

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

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

What is the cheapest month to book a flight from Seoul Gimpo Intl Airport to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

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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.

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

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

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

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

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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 16 September 2025.