Cheapflights Tip: The best prices from Incheon Intl to London are usually found in May or March, booked 27 days in advance, depart on a Friday or Thursday and return on a Tuesday
Find flight deals from Incheon Intl to London
Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 February 2026.
Best time to book a flight from Incheon Intl to London
Have a flexible travel schedule? Discover the best time to fly to London from Incheon Intl with our price prediction graph.
ICN-LON
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Incheon Intl Airport to London
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How far ahead should I book a flight from Incheon Intl Airport to London?
Use this chart to determine the optimal time to book a return flight from Incheon Intl to London. Price data was last updated on 13 February 2026.
To ensure you get the cheapest price possible for a flight from Incheon Intl Airport to London, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Incheon Intl Airport to London?
Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £108). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £529). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ICN to LON?
Find hourly flight availability from Incheon Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 February 2026.
When flying from Incheon Intl Airport to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Incheon Intl Airport to London
Explore weekly flight availability from Incheon Intl to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 February 2026.
The most flights from ICN to LON are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
How often are flights from Incheon to London delayed?
About 30% of weekly flights between Incheon and London have experienced delays in the past year, with the average delay time being 98 minutes.
What is the most punctual flight time for Incheon to London flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Incheon to London flights?
Over the past year, Korean Air have had the lowest number of delays on this route, with just 22% of flights being delayed.
What’s the top stopover airport for flights from Incheon Intl Airport to London?
Share of one-stop return flights from Incheon Intl Airport to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Shanghai (PVG) – chosen by Cheapflights users on 34% of one-stop itineraries from Incheon Intl Airport to London on Cheapflights.
What’s the cheapest stopover airport for flights from Incheon Intl Airport to London?
Average return fare for one-stop flights from Incheon Intl Airport to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Beijing (PKX) is the most affordable one-stop option, with an average return flight price of £444.
What’s the fastest stopover option from Incheon Intl Airport to London?
Shortest average travel time for one-stop one-way flights from Incheon Intl Airport to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Munich (MUC) have the shortest average one-way travel time for one-stop routes: 16h 00m.
Which airport typically offers the quickest stopover for flights from Incheon Intl Airport to London?
Average stopover duration for one-stop one-way flights from Incheon Intl Airport to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average stopover time of 1h 28m.
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 18 February 2026.
Get a feel of what it's like to fly with Asiana Airlines, China Southern, andChina Eastern from Incheon Intl Airport to London by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
This was a terrible flight. Uncomfortable, incredibly hot in the plane. Will never fly with this airline again.
Related info for your journey
Find useful and relevant information for your journey from Incheon Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Incheon Intl Airport to London?
There are many flights that can get you from Incheon Intl Airport to London in 14h 30m. Fly via China Southern, Virgin Atlantic, or China Eastern to get the fastest option. Airlines will cover a distance of 5503 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Incheon Intl Airport to London round-trip?
Our cheapest airline available from Incheon Intl Airport to London is Air China. Our recent data shows that you can find tickets from as low as £435 on this airline. Additional options worth looking into are China Eastern and Asiana Airlines, starting at £466 and £478 round-trip. Users have found that Air China is 25% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Incheon Intl Airport to London one-way?
£130 is the cheapest one-way deal found within the past few days, from Air China. You may also be able to find cheap deals on China Eastern and Etihad Airways, with prices starting from £146 and £225, respectively.
What are the most popular routes from Incheon Intl Airport to London?
While some choose either Incheon Intl - London Gatwick or Incheon Intl - London Stansted, Incheon Intl - London Heathrow is the most popular route from Incheon Intl Airport to London.
What are the most reliable airlines from Incheon Intl Airport to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Incheon Intl Airport to London on time: Korean Air (75%), Virgin Atlantic (62%), Asiana Airlines (36%).
What are the cheapest flights from Incheon Intl Airport to London?
Looking for the cheapest flight from Incheon Intl Airport to London? While on average our users pay £698, our data indicates the cheapest price to be £327. The most popular route (Incheon Intl - London Heathrow), is priced around £355.
Can I find deals for business class flights from Incheon Intl to London?
Yes. Cheapflights offers flight deals from Incheon Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Incheon Intl Airport to London?
Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to London (average of £108). Flying from Incheon Intl Airport to London in August is currently the most expensive (average of £529). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 February 2026.
Browse through other flights departing from Incheon Intl. Flights are based on user searches made on Cheapflights and were last updated on 18 February 2026.
Discover the top 4 airlines that operate flights from Incheon Intl to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 February 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Incheon Intl to London?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Incheon Intl to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Incheon Intl to London?
Cheapflights helps you find that perfect flight to London from Incheon Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Incheon Intl to London with no change fees?
Yes! Cheapflights helps users easily find flights from Incheon Intl to London with no change fees.
Can Cheapflights notify me if prices for flights from Incheon Intl to London become cheaper?
Not ready to book yet? You can track prices for flights from Incheon Intl to London on Cheapflights with our Price Alert feature and get notified when better prices are available.
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