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£178 Cheap Flights from Seoul (ICN) to London (LHR)

View £178 flight on Wed, 21 Oct 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £178 for one-way flights and £480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Wed, 28 Oct - Tue, 17 Nov
ICN
Seoul
LHR
London
£480 Return, found 1 hour ago
£480
Return
found 1 hour ago
Select Air China flight, departing Wed, 28 Oct from Seoul to London, returning Tue, 17 Nov, priced at £480 found 1 hour ago
LOT-Polish Airlines
Sat, 5 Dec - Sun, 13 Dec
ICN
Seoul
LHR
London
£486 Return, found 2 days ago
£486
Return
found 2 days ago
Select LOT-Polish Airlines flight, departing Sat, 5 Dec from Seoul to London, returning Sun, 13 Dec, priced at £486 found 2 days ago
China Southern Airlines
Wed, 18 Nov - Sun, 29 Nov
ICN
Seoul
LHR
London
£508 Return, found 2 days ago
£508
Return
found 2 days ago
Select China Southern Airlines flight, departing Wed, 18 Nov from Seoul to London, returning Sun, 29 Nov, priced at £508 found 2 days ago
China Eastern Airlines
Wed, 28 Oct - Tue, 17 Nov
ICN
Seoul
LHR
London
£509 Return, found 1 hour ago
£509
Return
found 1 hour ago
Select China Eastern Airlines flight, departing Wed, 28 Oct from Seoul to London, returning Tue, 17 Nov, priced at £509 found 1 hour ago
Lufthansa
Sun, 31 Jan - Tue, 9 Feb
ICN
Seoul
LHR
London
£518 Return, found 2 days ago
£518
Return
found 2 days ago
Select Lufthansa flight, departing Sun, 31 Jan from Seoul to London, returning Tue, 9 Feb, priced at £518 found 2 days ago
Finnair
Tue, 16 Mar - Tue, 13 Apr
ICN
Seoul
LHR
London
£532 Return, found 2 days ago
£532
Return
found 2 days ago
Select Finnair flight, departing Tue, 16 Mar from Seoul to London, returning Tue, 13 Apr, priced at £532 found 2 days ago
Scandinavian Airlines
Fri, 12 Mar - Mon, 15 Mar
ICN
Seoul
LHR
London
£580 Return, found 3 days ago
£580
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Fri, 12 Mar from Seoul to London, returning Mon, 15 Mar, priced at £580 found 3 days ago
Etihad Airways
Tue, 29 Sept - Tue, 29 Sept
ICN
Seoul
LHR
London
£586 Return, found 1 day ago
£586
Return
found 1 day ago
Select Etihad Airways flight, departing Tue, 29 Sept from Seoul to London, returning Tue, 29 Sept, priced at £586 found 1 day ago
Swiss International Air Lines
Wed, 15 Jul - Mon, 20 Jul
ICN
Seoul
LHR
London
£596 Return, found 15 hours ago
£596
Return
found 15 hours ago
Select Swiss International Air Lines flight, departing Wed, 15 Jul from Seoul to London, returning Mon, 20 Jul, priced at £596 found 15 hours ago
Vietnam Airlines
Tue, 6 Oct - Tue, 17 Nov
ICN
Seoul
LHR
London
£632 Return, found 18 hours ago
£632
Return
found 18 hours ago
Select Vietnam Airlines flight, departing Tue, 6 Oct from Seoul to London, returning Tue, 17 Nov, priced at £632 found 18 hours 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. Average driving time to city centre is 52 minutes. Flights from £685
LGW
Gatwick
Average driving time to city centre52 min
Flights from £685
Select flight to London City LCY. Closest option available. Average driving time to city centre is 21 minutes. Flights from £869
LCY
London City
Closest
Average driving time to city centre21 min
Flights from £869

Frequently asked questions

How much does a flight from Seoul (ICN) to London (LHR) cost?
You can find one-way and return flights from Seoul (ICN) to London (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 ICN to LHR ticket fares go up or down.
What is the cheapest month to fly from Seoul (ICN) to London (LHR)?
The cheapest months to fly from Seoul (ICN) to London (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 (ICN-Incheon Intl.) to London (LHR-Heathrow)?
You have 3 airlines offering direct flights from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow). Here are the carriers:
  • Korean Air operates 7 direct flights from ICN to LHR every week.
  • Asiana Airlines operates 7 direct flights from ICN to LHR every week.
  • Virgin Atlantic operates 7 direct flights from ICN to LHR every week.
How do I find cheap flights from Seoul (ICN) to London (LHR)?
To find a cheap flight from Seoul (ICN) to London (LHR), 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 (ICN) to London (LHR)?
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.
What is the earliest flight from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow)?
The earliest flight from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow) typically departs around 12:05 AM local time. This service is operated by Ethiopian Airlines. This is a seasonal service, active in January, November, and December. 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.
How long does it take to fly from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow)?
A direct flight from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow) covers a distance of around 8,863 kilometers and typically takes about 14 hours 30 minutes. If you opt for a flight with one stop, your journey will usually be longer, taking around 17 hours 48 minutes. For flights with two or more stops, expect the travel time to increase further, often to about 24 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Seoul (ICN) to London (LHR)?
Select the "Business class" and "First class" filters when looking for Seoul (ICN) to London (LHR) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow)?
A direct, return business class ticket from Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow) typically costs between £4,248 - £6,350. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow) if you opt for a connecting flight.
How do I earn miles on a Seoul (ICN-Incheon Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Seoul (ICN-Incheon 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 (ICN)?
If you're planning to travel to London from Incheon Intl. (ICN), you can fly directly into Heathrow (LHR). Some flights may connect through major hubs like Kastrup (CPH), Pudong Intl. (PVG), or Almaty Intl. (ALA) 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 (ICN-Incheon Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Seoul (ICN-Incheon 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 (ICN-Incheon Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Seoul (ICN-Incheon 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 (ICN) to London (LHR)?
If you booked your Seoul (ICN) to London (LHR) 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
Incheon Intl.
Destination airport
Heathrow
Airlines serving
Air Canada, Air China, Air France, Air India, Asiana Airlines, Cathay Pacific, China Southern Airlines, Emirates, Etihad Airways, Finnair, KLM, Korean Air, LOT-Polish Airlines, Lufthansa, Malaysia Airlines, Qatar Airways, Scandinavian Airlines, Singapore Airlines, Turkish Airlines, Virgin Atlantic
Return price
£480
Distance
8809 km
Average flight time
6 hours 26 mins

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 Incheon 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 Incheon Intl. (ICN) 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 Incheon Intl. to Heathrow start at just £480 and range up to £632.  

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 Incheon 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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