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

Airlines like China Southern and Japan Airlines fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 30h 20m. The time it takes to get you to your destination can typically vary by up to 7h 45m. 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.

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).

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.

£183+ Cheap Flights from Seoul Gimpo Intl Airport to London Heathrow Airport

Cheap flight deals from Gimpo Intl to Heathrow

Enter your travel dates to find the best prices.

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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 5 September 2026.

Sun 18/1013:30 -

1 stop36h 35m

Sun 25/1021:30 -

1 stop29h 55m

Deal found 3/9£494

Thu 5/1113:30 -

1 stop37h 25m

Sun 15/1121:30 -

1 stop29h 55m

Deal found 3/9£495

Wed 4/1113:30 -

1 stop37h 25m

Mon 9/1121:30 -

1 stop29h 55m

Deal found 1/9£501

Thu 5/1113:30 -

1 stop37h 25m

Tue 10/1121:30 -

1 stop29h 55m

Deal found 2/9£501

Mon 19/1013:30 -

1 stop36h 35m

Thu 5/1121:30 -

1 stop29h 55m

Deal found 1/9£505

Fri 16/1013:30 -

1 stop36h 35m

Mon 2/1121:30 -

1 stop29h 55m

Deal found 1/9£519

Wed 30/913:30 -

1 stop36h 35m

Wed 14/1021:00 -

1 stop31h 25m

Deal found 4/9£526

Sun 18/1013:30 -

1 stop36h 35m

Wed 4/1121:30 -

1 stop29h 55m

Deal found 1/9£535

Tue 8/920:50 -

1 stop29h 50m

Tue 22/921:20 -

1 stop29h 40m

Deal found 2/9£538

Find flight deals from Gimpo Intl to Heathrow

Round-trip from	£494
One-way from	£183
Popular in	October
Cheapest in	January
Average price	£614

China Southern
18/10-25/10
2 total stops
66h 30m total
Seoul to London

Search Deals

China Southern
14/10-31/12
1 total stop
36h 35m total
Seoul to London

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£41 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

Cheapest return flight

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Tue 8/12

14:25-17:50

1 stop36h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£285

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 2/12

08:35-21:00

2 stops21h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£329

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Tue 8/12

08:35-22:55

2 stops23h 20m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£330

Fastest return journey

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Tue 6/10

07:40-20:40

2 stops21h 00m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£366

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Tue 15/9

07:40-22:10

2 stops22h 30m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£366

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sat 3/10

15:00-10:20

2 stops27h 20m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£389

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Mon 14/9

06:00-21:05

3 stops47h 05m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£396

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sat 3/10

19:15-17:05

2 stops29h 50m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£711

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Mon 19/10

19:15-20:40

2 stops33h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£712

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Mon 21/9

12:05-17:05

2 stops37h 00m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£714

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 21 resultsSorted by cheapest first

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.

GMP-LHR

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 Japan Airlines fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 30h 20m. The time it takes to get you to your destination can typically vary by up to 7h 45m. 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.

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

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Cheap flights from Seoul Gimpo Intl Airport to London Heathrow Airport from £183

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. 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

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 5 September 2026.

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 5 September 2026.

Best flights from Gimpo Intl to HeathrowDiscover 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 5 September 2026.

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 5 September 2026.

Last-minute flights from Gimpo Intl to HeathrowDiscover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Gimpo Intl to HeathrowSearch for one-way flight options from Gimpo Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options from Gimpo Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

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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.

Related info for your journey

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?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Gimpo Intl to Heathrow

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Complete your trip

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Direct flights to England

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Search flights from Gimpo Intl to Heathrow by cabin class

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Other flights to Heathrow

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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 5 September 2026.

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 5 September 2026.

Last-minute flights from Gimpo Intl to Heathrow
Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 5 September 2026 and is based on user searches.

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 5 September 2026.