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

Airlines like China Southern, Air China, and 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 18h 10m. 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.

£182+ 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.

Cheapest

Best

Last-minute

One-way

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 1 November 2026.

Thu 24/1213:30 -

1 stop37h 25m

Sat 9/121:30 -

1 stop29h 55m

Deal found 31/10£438

Thu 24/1213:30 -

1 stop37h 25m

Mon 4/121:30 -

1 stop29h 55m

Deal found 29/10£440

Thu 24/1213:30 -

1 stop37h 25m

Mon 18/121:30 -

1 stop29h 55m

Deal found 30/10£441

Thu 24/1213:30 -

1 stop37h 25m

Sun 10/121:30 -

1 stop29h 55m

Deal found 31/10£447

Thu 12/1113:30 -

1 stop37h 25m

Thu 19/1121:30 -

1 stop29h 55m

Deal found 31/10£448

Thu 12/1113:30 -

1 stop37h 25m

Wed 18/1121:30 -

1 stop29h 55m

Deal found 30/10£456

Thu 17/1213:30 -

1 stop37h 25m

Wed 20/121:30 -

1 stop29h 55m

Deal found 30/10£458

Find flight deals from Gimpo Intl to Heathrow

Round-trip from	£438
One-way from	£182
Popular in	October
Cheapest in	November
Average price	£474

China Southern
24/12-9/1
2 total stops
67h 20m total
Seoul to London

Search Deals

China Southern
26/11-31/12
1 total stop
37h 25m total
Seoul to London

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£28 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 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

Thu 17/12

14:25-17:50

1 stop36h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£300

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Thu 1/4

13:30-18:05

1 stop36h 35m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£367

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Fri 19/2

14:25-17:50

1 stop36h 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

Thu 1/4

14:25-14:55

2 stops32h 30m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£417

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 6/1

14:25-17:05

2 stops35h 40m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£423

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Wed 18/11

08:35-21:00

2 stops21h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£435

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Fri 6/11

08:35-21:00

2 stops21h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£479

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Mon 9/11

07:55-19:00

2 stops20h 05m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£494

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sat 28/11

08:35-21:00

2 stops21h 25m

London Heathrow

Sat 5/12

08:45-13:05

2 stops19h 20m

£617

SeoulLondon

GMP Seoul Gimpo Intl - LHR London Heathrow

GMPLHR

Seoul Gimpo Intl

Sat 14/11

08:35-21:00

2 stops21h 25m

London Heathrow

Wed 31/12

00:00-08:00

Nonstop0h 00m

£656

Flights are sorted by cheapest return flights first.

Deals found on 1/11

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, Air China, and 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 18h 10m. 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.

See more FAQs

Hounslow

Luton

Milton Keynes

Wembley

Gatwick

Slough

Ilford

Hayes

Croydon

Eastbourne

Northampton

Barnet

Brentford

Southend-on-Sea

Enfield

Southall

Harrow

Watford

Folkestone

Dagenham

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Heathrow flight routes

Other flight options

Popular flights

Alternative routes for Gimpo Intl to Heathrow

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

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Seoul Gimpo Intl Airport to London Heathrow Airport from £182

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/11. 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 1 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 1 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 1 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 1 November 2026.

Last-minute flights from Gimpo Intl to HeathrowDiscover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 1 November 2026 and is based on user searches.

Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 1 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 1 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 1 November 2026.

Find flight deals from Gimpo Intl to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Gimpo Intl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Gimpo Intl to Heathrow by cabin class

Find flights from Gimpo Intl to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 1 November 2026.

Gimpo Intl and Heathrow flights

Browse other Gimpo Intl and Heathrow flight options. Last updated on 1 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly with Cheapflights

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?

100% Free

Book with Flexibility

Travel Smart

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 1 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 1 November 2026.

Last-minute flights from Gimpo Intl to Heathrow
Discover last-minute flight deals from Gimpo Intl to Heathrow. Data last updated 1 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 1 November 2026.