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

Airlines like Japan Airlines fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 19h 45m. 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.

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.

£175+ 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 10 November 2026.

Thu 24/1213:30 -

1 stop37h 25m

Mon 18/121:30 -

1 stop29h 55m

Deal found 7/11£445

Thu 24/1213:30 -

1 stop37h 25m

Mon 4/121:30 -

1 stop29h 55m

Deal found 6/11£447

Thu 26/1113:30 -

1 stop37h 25m

Mon 30/1121:30 -

1 stop29h 55m

Deal found 6/11£471

Wed 25/1113:30 -

1 stop37h 25m

Tue 1/1221:30 -

1 stop29h 55m

Deal found 9/11£474

Wed 2/1213:30 -

1 stop37h 25m

Sun 6/1221:30 -

1 stop29h 55m

Deal found 6/11£477

Tue 17/1120:50 -

1 stop29h 40m

Sat 28/1121:00 -

1 stop29h 00m

Deal found 8/11£484

Find flight deals from Gimpo Intl to Heathrow

Round-trip from	£445
One-way from	£175
Popular in	October
Cheapest in	November
Average price	£473

China Southern
24/12-18/1
2 total stops
67h 20m total
Seoul to London

Search Deals

China Southern
2/12-31/12
1 total stop
37h 25m total
Seoul to London

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£32 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

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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.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Mon 7/12

14:40-06:25

2 stops24h 45m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£213

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

£368

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Mon 21/12

14:25-15:55

1 stop34h 30m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£371

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sat 5/12

08:35-21:00

2 stops21h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£379

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Tue 17/11

20:50-17:30

1 stop29h 40m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£512

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 7/1

08:35-18:20

2 stops42h 45m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£523

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sun 11/4

13:30-18:05

1 stop36h 35m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£604

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 23/12

08:25-06:25

1 stop31h 00m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£684

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sun 20/12

12:05-06:25

1 stop27h 20m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£762

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Fri 18/12

08:15-06:25

1 stop31h 10m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£762

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 24 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 Japan Airlines fly from Seoul Gimpo Intl Airport to London Heathrow Airport in about 19h 45m. 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.

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

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. 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 10 November 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Gimpo Intl to HeathrowDiscover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 10 November 2026 and is based on user searches.

Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 10 November 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 10 November 2026.

Search for one-way flight options from Gimpo Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.

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Best time to book a flight from Gimpo Intl to Heathrow

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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?

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Alternative routes for Gimpo Intl to Heathrow

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Direct flights to England

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 November 2026.

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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 10 November 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 10 November 2026.

Last-minute flights from Gimpo Intl to Heathrow
Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 10 November 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 10 November 2026.