Gyeongbokgung palace in Seoul City, South Korea, Gyeongbokgung palace landmark Seoul, South Korea, Korean wooden traditional Gyeongbokgung the main royal palace of Joseon dynasty, Seoul, South Korea.

฿18,465 Cheap Flights from London (LHR) to Seoul (ICN)

View ฿18,465 flight on Wed, 24 Feb 2027Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)

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

Prices were available within the past 7 days and start at ฿18,465 for one-way flights and ฿20,790 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Shenzhen Airlines
Sun, 8 Nov - Sun, 22 Nov
LHR
London
ICN
Seoul
฿20,790 Return, found 10 hours ago
฿20,790
Return
found 10 hours ago
Select Shenzhen Airlines flight, departing Sun, 8 Nov from London to Seoul, returning Sun, 22 Nov, priced at ฿20,790 found 10 hours ago
Air India
Wed, 17 Jun - Wed, 24 Jun
LHR
London
ICN
Seoul
฿24,940 Return, found 2 days ago
฿24,940
Return
found 2 days ago
Select Air India flight, departing Wed, 17 Jun from London to Seoul, returning Wed, 24 Jun, priced at ฿24,940 found 2 days ago
Scandinavian Airlines
Mon, 9 Nov - Tue, 1 Dec
LHR
London
ICN
Seoul
฿25,805 Return, found 5 days ago
฿25,805
Return
found 5 days ago
Select Scandinavian Airlines flight, departing Mon, 9 Nov from London to Seoul, returning Tue, 1 Dec, priced at ฿25,805 found 5 days ago
Lufthansa
Thu, 12 Nov - Fri, 4 Dec
LHR
London
ICN
Seoul
฿25,955 Return, found 5 days ago
฿25,955
Return
found 5 days ago
Select Lufthansa flight, departing Thu, 12 Nov from London to Seoul, returning Fri, 4 Dec, priced at ฿25,955 found 5 days ago
China Southern Airlines
Tue, 10 Nov - Tue, 24 Nov
LHR
London
ICN
Seoul
฿25,990 Return, found 10 hours ago
฿25,990
Return
found 10 hours ago
Select China Southern Airlines flight, departing Tue, 10 Nov from London to Seoul, returning Tue, 24 Nov, priced at ฿25,990 found 10 hours ago
KLM
Mon, 2 Nov - Wed, 2 Dec
LHR
London
ICN
Seoul
฿27,275 Return, found 5 days ago
฿27,275
Return
found 5 days ago
Select KLM flight, departing Mon, 2 Nov from London to Seoul, returning Wed, 2 Dec, priced at ฿27,275 found 5 days ago
Finnair
Tue, 12 Jan - Fri, 12 Feb
LHR
London
ICN
Seoul
฿28,225 Return, found 5 days ago
฿28,225
Return
found 5 days ago
Select Finnair flight, departing Tue, 12 Jan from London to Seoul, returning Fri, 12 Feb, priced at ฿28,225 found 5 days ago
Etihad Airways
Tue, 12 Jan - Fri, 12 Feb
LHR
London
ICN
Seoul
฿28,370 Return, found 5 days ago
฿28,370
Return
found 5 days ago
Select Etihad Airways flight, departing Tue, 12 Jan from London to Seoul, returning Fri, 12 Feb, priced at ฿28,370 found 5 days ago
Air France
Mon, 2 Nov - Wed, 2 Dec
LHR
London
ICN
Seoul
฿34,215 Return, found 5 days ago
฿34,215
Return
found 5 days ago
Select Air France flight, departing Mon, 2 Nov from London to Seoul, returning Wed, 2 Dec, priced at ฿34,215 found 5 days ago
Asiana Airlines
Wed, 17 Jun - Wed, 24 Jun
LHR
London
ICN
Seoul
฿36,210 Return, found 2 days ago
฿36,210
Return
found 2 days ago
Select Asiana Airlines flight, departing Wed, 17 Jun from London to Seoul, returning Wed, 24 Jun, priced at ฿36,210 found 2 days ago

Find the cheapest month to fly from London (LHR) to Seoul (ICN)

February is typically the cheapest month to fly

From ฿20,919 - ฿34,237 per traveller.

Frequently asked questions

How much is a flight from Heathrow Airport to Incheon Intl. Airport (ICN)?
Start packing your suitcase, because round-trip flights from LHR to ICN start from ฿20,790. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport to Incheon Intl. Airport (ICN)?
This differs between air carriers, as each has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Heathrow Airport to Seoul–Incheon Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport (LHR) to Incheon Intl. Airport (ICN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London Heathrow to ICN?
The distance is around 8,900 kilometres, so pack your carry-on bag with all the things you need to make your journey comfortable. Wondering what to take on board your Hounslow to South Korea flight? A sleep mask, earplugs and a travel pillow are among the essentials.
Which airlines fly direct from LHR to Incheon Intl. Airport (ICN)?
With 30 flights a month operating from LHR to Incheon Airport, Korean Air (KE) is a popular choice. Asiana Airlines (OZ) is another popular choice. It offers 30 flights each month. Between these two airlines, you'll be able to find a great deal from Hounslow to South Korea.
Are Heathrow Airport (LHR) to Seoul–Incheon Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes pick up a bargain, with some super cheap airfares from London Heathrow to Seoul–Incheon Intl. Airport arising a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals regularly — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines quote prices so far in advance.

Travel information

Origin airport
Heathrow
Destination airport
Incheon Intl.
Airlines serving
Air France, Air India, Asiana Airlines, Cathay Pacific, China Airlines, China Southern Airlines, Emirates, Ethiopian Airlines, Etihad Airways, Finnair, Japan Airlines, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Singapore Airlines, Thai Airways International, Turkish Airlines, United, Vietnam Airlines
Return price
฿20,790
Distance
8809 km
Average flight time
20 hours 41 mins

Book with confidence

Perfect flights from London to Seoul

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Seoul. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to Incheon Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿18,465 and roundtrip prices from ฿20,790. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Incheon Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Seoul.
Perfect flights from London to Seoul
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