Cheap flights from Seoul to London from £154
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to London departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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China Southern flights from Seoul to London
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SWISS flights from Seoul to London
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How to get the cheapest flight ticket from Seoul to London
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to London?
The cheapest month to fly to London from Seoul is in December. Flight prices, which tend to average around £428, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Seoul averaging around £436.
What is the cheapest day to depart on your flight to London?
Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £689. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £826.
What is the cheapest time of day to depart on your flight to London?
The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £533. Flights at midday are often more expensive, with an average ticket price of £782.
What is the cheapest Seoul to London flight route?
Fly from Incheon Intl to London Heathrow for the best Seoul - London flight prices
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from Seoul when booking 16 weeks ahead of your departure date. In general, you can expect to find flights to London for around £624 when searching 16 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Seoul for as low as £561 on momondo.
What cabin class options are available on Seoul to London flights?
There are 4 cabin classes available to choose from on Seoul to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Seoul to London?
China Southern, Lufthansa, and China Eastern are the most popular carriers operating from Seoul to London
Which airlines fly to London?
Asiana Airlines, China Eastern and Korean Air are the top three most popular airlines that fly to London from Seoul according to our data. Asiana Airlines is the first choice among our users, with 36% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seoul to London on average per day?
As of June 2025, there are 3 flights per day flying from Seoul to London. The most common time of day flights depart is 10:00, with 66% of flights taking off at midday.
How many flights depart from Seoul to London on average per week?
The number of flights available between Seoul and London is 21 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from Seoul to London
Cheap Seoul to London (SEL to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seoul to London
How far is Seoul to London by plane?
Seoul and London are 5501.4 mi apart from one another. Flights usually cover this in 16h 00m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seoul to London?
Prices for flights from Seoul to London refresh daily.
How many operators does momondo search for flights from Seoul to London?
The number of operators available for flights from Seoul to London is 4 as of June 2025.
How old do you have to be to fly from Seoul to London?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seoul to London?
Based on momondo bookings for flights between Seoul and London, the leading plane model is Boeing 777-300ER, making up 49.38% of the total bookings. Other popular models include Airbus A350-900 with 43.53%, Boeing 747-8 with 6.95%, and Embraer 190 with 0.15%.
What is the most popular airline from Seoul to London?
Based on momondo bookings for flights between Seoul and London, the leading airline is China Eastern, making up 34% of the total bookings. Other popular airlines include Air China with 20%, Asiana Airlines with 13%, and Finnair with 11%.
Best airlines flying from Seoul to London
Compare and see reviews for airlines that fly from Seoul to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £349 | Free Cancellation | Rating 7.2 150 reviews | |||
| PriceFrom £554 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom £653 | Free Cancellation | Rating 8.2 440 reviews | |||
| PriceFrom £663 | Free Cancellation | Rating 8.4 1,091 reviews |
Korean Air Flights From Seoul to London
Korean Air is one of the most popular airlines flying from Seoul to London, operating 7 flights/week on average for this route. A good Korean Air flight deal for Seoul to London starts from £901 round-trip, up to an average price of £1,138. Our users have rated Korean Air at 8.4/10.
Asiana Airlines Flights From Seoul to London
Another popular option for Seoul to London flights is Asiana Airlines (8.2/10, 440 ratings). Asiana Airlines flies from Seoul to London around 7 times per week, with deals starting from £888 round-trip and rising to an average price of around £1,076.
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Why should I use momondo to find a flight deal from Seoul to London?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to London . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seoul to London with flexible booking policies on momondo?
Yes. All flights to London from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Seoul to London?
Once all potential Seoul to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Seoul to London right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seoul to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.