$344 Cheap Flights from London (LHR) to Seoul (ICN)

View $344 flight on Tue, Nov 11, 2025Opens in a new window

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

Cheap Flights from London to Seoul (LHR-ICN)

Prices were available within the past 7 days and start at $344 for one-way flights and $476 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Tue, Nov 11 - Tue, Nov 18
LHR
London
ICN
Seoul
$476 Roundtrip, just found
$476
Roundtrip
just found
Select China Eastern Airlines flight, departing Tue, Nov 11 from London to Seoul, returning Tue, Nov 18, priced at $476 just found
China Southern Airlines
Tue, Nov 11 - Tue, Nov 18
LHR
London
ICN
Seoul
$513 Roundtrip, just found
$513
Roundtrip
just found
Select China Southern Airlines flight, departing Tue, Nov 11 from London to Seoul, returning Tue, Nov 18, priced at $513 just found
Air China
Mon, Nov 17 - Thu, Nov 27
LHR
London
ICN
Seoul
$526 Roundtrip, found 5 hours ago
$526
Roundtrip
found 5 hours ago
Select Air China flight, departing Mon, Nov 17 from London to Seoul, returning Thu, Nov 27, priced at $526 found 5 hours ago
Lufthansa
Tue, Feb 3 - Mon, Feb 16
LHR
London
ICN
Seoul
$562 Roundtrip, found 1 day ago
$562
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, Feb 3 from London to Seoul, returning Mon, Feb 16, priced at $562 found 1 day ago
Shenzhen Airlines
Fri, Nov 21 - Thu, Nov 27
LHR
London
ICN
Seoul
$614 Roundtrip, found 22 hours ago
$614
Roundtrip
found 22 hours ago
Select Shenzhen Airlines flight, departing Fri, Nov 21 from London to Seoul, returning Thu, Nov 27, priced at $614 found 22 hours ago
Scandinavian Airlines
Tue, Feb 3 - Mon, Feb 16
LHR
London
ICN
Seoul
$658 Roundtrip, found 1 day ago
$658
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Tue, Feb 3 from London to Seoul, returning Mon, Feb 16, priced at $658 found 1 day ago
LOT-Polish Airlines
Sun, Jan 11 - Sat, Jan 17
LHR
London
ICN
Seoul
$721 Roundtrip, found 20 hours ago
$721
Roundtrip
found 20 hours ago
Select LOT-Polish Airlines flight, departing Sun, Jan 11 from London to Seoul, returning Sat, Jan 17, priced at $721 found 20 hours ago
Air India
Tue, Jan 20 - Tue, Feb 3
LHR
London
ICN
Seoul
$725 Roundtrip, found 1 day ago
$725
Roundtrip
found 1 day ago
Select Air India flight, departing Tue, Jan 20 from London to Seoul, returning Tue, Feb 3, priced at $725 found 1 day ago
Etihad Airways
Sat, Nov 15 - Wed, Nov 19
LHR
London
ICN
Seoul
$747 Roundtrip, found 8 hours ago
$747
Roundtrip
found 8 hours ago
Select Etihad Airways flight, departing Sat, Nov 15 from London to Seoul, returning Wed, Nov 19, priced at $747 found 8 hours ago
Air France
Tue, Jan 20 - Tue, Feb 3
LHR
London
ICN
Seoul
$822 Roundtrip, found 1 day ago
$822
Roundtrip
found 1 day ago
Select Air France flight, departing Tue, Jan 20 from London to Seoul, returning Tue, Feb 3, priced at $822 found 1 day ago

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

March is typically the cheapest month to fly

From $474 - $1,030 per traveler.

Alternative airports near Seoul

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

Select flight to Gimpo Intl. GMP. Closest option available. Average driving time to city center is 20 minutes. Flights from $755
GMP
Gimpo Intl.
Closest
Average driving time to city center20 min
Flights from $755
Flights from London (LHR) to Seoul (ICN)
Origin airport
Heathrow
Destination airport
Incheon Intl.
Airlines serving
Air Canada, Air China, Air India, Asiana Airlines, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Finnair, Korean Air, LOT-Polish Airlines, Lufthansa, Malaysia Airlines, Qatar Airways, Scandinavian Airlines, Singapore Airlines, Thai Airways International, Turkish Airlines, Virgin Atlantic
Roundtrip price
$476
Distance
5505 mi
Average flight time
21 hours 37 mins

London to Seoul Flights

The cheapest times to fly from London to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Seoul are during the month of November. You can find some of the cheapest flights from London to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Seoul

Sunday is one of the best days to book for cheap flights from London to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $344 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN) cost?
Get a cheap one-way flight from $344 or cheap return flight from $476 from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
Traveling in November is a great way to save, as it's the cheapest month for flights between LHR and ICN. You'll often find the lowest fares during the off-season.
Which airlines fly direct from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
Take a nonstop flight with Korean Air and go straight from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN).
What is the cheapest airline that flies from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
While prices can change depending on your travel dates, Asiana Airlines and Korean Air are popular options for flights between Heathrow Airport (LHR) and Incheon Intl. Airport (ICN). You can also compare airlines on Expedia and use the "Sort by" filter to find the lowest fare for your LHR to ICN flight.
How many flights per day from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
On average, there is just 1 direct flight departing from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN) every day. If this isn't convenient for you, think about flights with a layover. Just customize your search results on Expedia to include one stop or more to discover the next best option.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
More passengers fly between LHR and ICN at 6 PM than at any other point in the day. Looking for a quieter experience? Pick a flight outside the busiest times and you're likely to save on your ticket as well.
What day of the week has the most flights from LHR to ICN?
If you fly on a Wednesday, you'll get the largest range of choices for flights from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN).
What is the earliest flight from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
The earliest flight out of Heathrow Airport (LHR) is at around 6:50PM UTC+0. Catch this flight and you'll reach Incheon Intl. Airport (ICN) at approximately 4:15PM UTC+9. The total travel time is 12h 25m.
How long does it take to fly from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
The average flight time from LHR to ICN is 12 hours and 28 minutes, covering a total distance of 5,500 mi.
What is the best time to fly from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
To land at Incheon Intl. Airport (ICN) without delays, choose a flight that takes off from Heathrow Airport (LHR) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seoul from Heathrow Airport (LHR)?
Incheon Intl. Airport (ICN) is the only airport in Seoul with direct flights from Heathrow Airport (LHR). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN) last-minute?
Last-minute bookings from LHR to ICN are usually more expensive. To secure the best rates, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book a LHR to ICN flight and hotel package?
Compared with arranging hotels and flights separately, booking a LHR to ICN flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Simply secure your flights and select from our wide range of stays, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Incheon Intl. Airport (ICN)?
If you booked your LHR to ICN flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.