$205 Cheap Flights from Seoul (ICN) to London (LHR)

View $205 flight on Wed, Dec 24, 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Seoul to London (ICN-LHR)

Prices were available within the past 7 days and start at $205 for one-way flights and $491 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Southern Airlines
Fri, Nov 28 - Sun, Nov 30
ICN
Seoul
LHR
London
$491 Roundtrip, just found
$491
Roundtrip
just found
Select China Southern Airlines flight, departing Fri, Nov 28 from Seoul to London, returning Sun, Nov 30, priced at $491 just found
Air China
Sun, Nov 23 - Tue, Nov 25
ICN
Seoul
LHR
London
$518 Roundtrip, found 5 days ago
$518
Roundtrip
found 5 days ago
Select Air China flight, departing Sun, Nov 23 from Seoul to London, returning Tue, Nov 25, priced at $518 found 5 days ago
China Eastern Airlines
Wed, Nov 26 - Mon, Dec 8
ICN
Seoul
LHR
London
$569 Roundtrip, found 10 hours ago
$569
Roundtrip
found 10 hours ago
Select China Eastern Airlines flight, departing Wed, Nov 26 from Seoul to London, returning Mon, Dec 8, priced at $569 found 10 hours ago
LOT-Polish Airlines
Wed, Nov 5 - Wed, Nov 26
ICN
Seoul
LHR
London
$580 Roundtrip, found 1 day ago
$580
Roundtrip
found 1 day ago
Select LOT-Polish Airlines flight, departing Wed, Nov 5 from Seoul to London, returning Wed, Nov 26, priced at $580 found 1 day ago
Lufthansa
Wed, Dec 24 - Sat, Jan 3
ICN
Seoul
LHR
London
$595 Roundtrip, found 2 hours ago
$595
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Wed, Dec 24 from Seoul to London, returning Sat, Jan 3, priced at $595 found 2 hours ago
Etihad Airways
Wed, Nov 19 - Fri, Nov 28
ICN
Seoul
LHR
London
$595 Roundtrip, found 6 days ago
$595
Roundtrip
found 6 days ago
Select Etihad Airways flight, departing Wed, Nov 19 from Seoul to London, returning Fri, Nov 28, priced at $595 found 6 days ago
Scandinavian Airlines
Fri, Feb 27 - Tue, Mar 17
ICN
Seoul
LHR
London
$596 Roundtrip, found 4 days ago
$596
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Fri, Feb 27 from Seoul to London, returning Tue, Mar 17, priced at $596 found 4 days ago
Shenzhen Airlines
Sun, Dec 21 - Sat, Dec 27
ICN
Seoul
LHR
London
$598 Roundtrip, found 1 day ago
$598
Roundtrip
found 1 day ago
Select Shenzhen Airlines flight, departing Sun, Dec 21 from Seoul to London, returning Sat, Dec 27, priced at $598 found 1 day ago
Swiss International Air Lines
Mon, Mar 30 - Mon, Apr 27
ICN
Seoul
LHR
London
$666 Roundtrip, found 2 days ago
$666
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Mon, Mar 30 from Seoul to London, returning Mon, Apr 27, priced at $666 found 2 days ago
Korean Air
Wed, Nov 5 - Wed, Nov 26
ICN
Seoul
LHR
London
$683 Roundtrip, found 1 day ago
$683
Roundtrip
found 1 day ago
Select Korean Air flight, departing Wed, Nov 5 from Seoul to London, returning Wed, Nov 26, priced at $683 found 1 day ago

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

November is typically the cheapest month to fly

From $481 - $732 per traveler.

Alternative airports near London

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

Select flight to Gatwick LGW. Average driving time to city center is 52 minutes. Flights from $1,100
LGW
Gatwick
Average driving time to city center52 min
Flights from $1,100

Frequently asked questions

How much does a flight from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR) cost?
Get a cheap one-way flight from $205 or cheap return flight from $491 from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
The cheapest month to fly from ICN to LHR is November, when demand is low. Off-peak season is typically when airlines offer lower prices between these airports.
Which airlines fly direct from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
Hop on a direct flight with Korean Air and head straight from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR).
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
While prices can change depending on your travel dates, Asiana Airlines and Korean Air are go-to choices for flights between Incheon Intl. Airport (ICN) and Heathrow Airport (LHR). You can also compare carriers on Expedia and use the "Sort by" filter to find the lowest-priced ticket for your ICN to LHR flight.
How many flights per day from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
On average, just 1 nonstop flight departs each day from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR). Want more options? Use Expedia's filters to find flights with layovers and squeeze in a visit to another city along the way.
What are the most popular departure times for flights from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
Flights between ICN and LHR are busiest at 10 AM. For a more relaxed trip and potentially cheaper tickets, choose a time outside the usual busy windows.
What day of the week has the most flights from ICN to LHR?
Sunday offers the most flights from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR). Consider traveling on this day and you'll have the best chance of finding a departure that works with your plans.
What is the earliest flight from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
Incheon Intl. Airport (ICN)'s earliest flight to Heathrow Airport (LHR) departs at approximately 10:40AM UTC+9. With a total flight time of 14h 50m, you'll touch down at around 4:30PM UTC+0.
How long does it take to fly from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
The average flight time from ICN to LHR is 14 hours and 46 minutes, covering a total distance of 5,500 mi.
What is the best time to fly from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
To land at Heathrow Airport (LHR) on time, choose a flight that takes off from Incheon Intl. Airport (ICN) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 London from Incheon Intl. Airport (ICN)?
Heathrow Airport (LHR) is the only airport in London with direct flights from Incheon Intl. Airport (ICN). Check out the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR) last-minute?
Last-minute bookings from ICN to LHR are generally more expensive. To lock in the best prices, start searching for flights as soon as possible. That said, if you can play around with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book an ICN to LHR flight and hotel package?
Compared with arranging flights and hotels separately, booking an ICN to LHR flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Heathrow Airport (LHR)?
In most cases, you can reschedule or cancel your ICN to LHR flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need further details, visit our Customer Service portal.

Travel information

Origin airport
Incheon Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air China, Air India, Asiana Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Finnair, Korean Air, LOT-Polish Airlines, Lufthansa, Malaysia Airlines, Qatar Airways, Singapore Airlines, Thai Airways International, Turkish Airlines, Vietnam Airlines
Roundtrip price
$490
Distance
5505 mi
Average flight time
6 hours 27 mins

Book with confidence

Seoul to London Flights

The cheapest times to fly from Seoul to London

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 Seoul to London are during the month of November. You can find some of the cheapest flights from Seoul to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to London

Sunday is one of the best days to book for cheap flights from Seoul to London: 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 Seoul to London

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 Seoul to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $205 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 Seoul to London 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 Seoul to London 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.

 

Seoul to London Flights

Explore a world of travel with Expedia

*Available to One Key members.