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£185 Cheap Flights from Seoul (GMP) to London (LHR)

View £185 flight on Wed, 21 Oct 2026Opens in a new window

Popular airlines from Gimpo Intl. Airport (GMP) to Heathrow Airport (LHR)

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Cheap Flights from Seoul (GMP) to London (LHR)

Prices were available within the past 7 days and start at £185 for one-way flights and £448 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Thu, 22 Oct - Mon, 2 Nov
GMP
Seoul
LHR
London
£448 Return, found 3 days ago
£448
Return
found 3 days ago
Select China Southern Airlines flight, departing Thu, 22 Oct from Seoul to London, returning Mon, 2 Nov, priced at £448 found 3 days ago
China Southern Airlines
Sat, 17 Oct - Sun, 8 Nov
GMP
Seoul
LHR
London
£465 Return, found 6 days ago
£465
Return
found 6 days ago
Select China Southern Airlines flight, departing Sat, 17 Oct from Seoul to London, returning Sun, 8 Nov, priced at £465 found 6 days ago
China Southern Airlines
Thu, 22 Oct - Mon, 26 Oct
GMP
Seoul
LHR
London
£469 Return, found 6 hours ago
£469
Return
found 6 hours ago
Select China Southern Airlines flight, departing Thu, 22 Oct from Seoul to London, returning Mon, 26 Oct, priced at £469 found 6 hours ago
China Southern Airlines
Tue, 20 Oct - Sun, 25 Oct
GMP
Seoul
LHR
London
£487 Return, found 16 hours ago
£487
Return
found 16 hours ago
Select China Southern Airlines flight, departing Tue, 20 Oct from Seoul to London, returning Sun, 25 Oct, priced at £487 found 16 hours ago
China Southern Airlines
Sat, 17 Oct - Sat, 31 Oct
GMP
Seoul
LHR
London
£499 Return, found 4 days ago
£499
Return
found 4 days ago
Select China Southern Airlines flight, departing Sat, 17 Oct from Seoul to London, returning Sat, 31 Oct, priced at £499 found 4 days ago
China Southern Airlines
Wed, 16 Dec - Wed, 30 Dec
GMP
Seoul
LHR
London
£531 Return, found 2 days ago
£531
Return
found 2 days ago
Select China Southern Airlines flight, departing Wed, 16 Dec from Seoul to London, returning Wed, 30 Dec, priced at £531 found 2 days ago
Air China
Tue, 22 Dec - Sun, 27 Dec
GMP
Seoul
LHR
London
£559 Return, found 5 days ago
£559
Return
found 5 days ago
Select Air China flight, departing Tue, 22 Dec from Seoul to London, returning Sun, 27 Dec, priced at £559 found 5 days ago
Korean Air
Tue, 19 Jan - Tue, 26 Jan
GMP
Seoul
LHR
London
£575 Return, found 1 hour ago
£575
Return
found 1 hour ago
Select Korean Air flight, departing Tue, 19 Jan from Seoul to London, returning Tue, 26 Jan, priced at £575 found 1 hour ago
All Nippon Airways
Mon, 18 Jan - Fri, 22 Jan
GMP
Seoul
LHR
London
£888 Return, found 1 day ago
£888
Return
found 1 day ago
Select All Nippon Airways flight, departing Mon, 18 Jan from Seoul to London, returning Fri, 22 Jan, priced at £888 found 1 day ago
Japan Airlines
Tue, 19 Jan - Tue, 26 Jan
GMP
Seoul
LHR
London
£1,025 Return, found 1 hour ago
£1,025
Return
found 1 hour ago
Select Japan Airlines flight, departing Tue, 19 Jan from Seoul to London, returning Tue, 26 Jan, priced at £1,025 found 1 hour ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Cheapest option available. Average driving time to city centre is 52 minutes. Flights from £867
LGW
Gatwick
Cheapest
Average driving time to city centre52 min
Flights from £867

Frequently asked questions

How much does a flight from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) cost?
You can find one-way and return flights from GMP to LHR with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when GMP to LHR ticket fares go up or down.
What is the cheapest month to fly from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
The cheapest months to fly from GMP to LHR are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
Enter GMP to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
There are approximately 15 connecting flights per day from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow). Some common connection points include Haneda (HND), Capital Intl. (PEK), and Kansai Intl. (KIX).
What is the earliest flight from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
The earliest flight from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) typically departs around 7:40 AM. This service is offered by airlines such as All Nippon Airways and Lufthansa. This is a seasonal service, active only in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) on a Tuesday, with around 9 flights available. This gives you a good selection for your travel plans. Major airlines on this route include Japan Airlines, Korean Air, and All Nippon Airways.
What are the most popular departure times for flights from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) are in the morning, from 6am to 9am. Many major carriers, including All Nippon Airways and Japan Airlines, offer flights during this window. Many travellers prefer this timing as it allows for an early start to their journey.
How long does it take to fly from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
There are no nonstop flights from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow). For flights with one stop, you can expect the journey to take around 19 hours 48 minutes. If your flight has two or more stops, the travel time typically extends to about 24 hours. The distance covered on this route is approximately 8,869 kilometers. Keep in mind that these are average times, and your actual travel duration can vary depending on the specific routing, layover times, and factors like wind patterns.
Can you fly business or first class from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for GMP to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London (LHR) from Seoul (GMP)?
If you're planning to travel to London from Gimpo Intl. (GMP), you can fly directly into Heathrow (LHR). Some flights may connect through major hubs like Haneda (HND) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow)?
If you booked your Seoul (GMP-Gimpo Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Gimpo Intl.
Destination airport
Heathrow
Airlines serving
Air China, All Nippon Airways, China Southern Airlines, Japan Airlines
Roundtrip price
£448
Distance
8815 km

Book with confidence

Compare flights from Seoul to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seoul to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Gimpo Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Gimpo Intl. (GMP) to Heathrow (LHR)

The easiest way to view the best deals on flights from Seoul to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Gimpo Intl. to Heathrow start at just £448 and range up to £1,025.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seoul and London
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seoul to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Gimpo Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Seoul to London easily and book with confidence

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*Available to Expedia members.