Cheap flights from Seoul to London from $223
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 6/23. 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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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 $582, 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 $592.
What is the cheapest day to depart on your flight to London?
The cheapest day to depart from Seoul to London is on a Monday. Travelers who choose to depart for London on a Monday will often find tickets for as low as $978. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,121. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.
What is the cheapest time of day to depart on your flight to London?
Flying to London from Seoul in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $541 when looking at flights departing in the afternoon. Flights to London are more costly in the morning, with an average ticket price of $1,058. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
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 $848 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 $762 on momondo.
What cabin class options are available on Seoul to London flights?
There are 2 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
What airlines fly to London?
Asiana Airlines, Korean Air and Air China 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 44% of people opting to fly with this airline when traveling to London. Keep in mind that there are 6 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 10:00AM, with 66% of flights taking off at noon.
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. 16h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Seoul to London?
Prices for flights from Seoul to London were last updated today.
How many operators does momondo search for flights from Seoul to London?
As of June 2025, there are 6 operators available to choose from for flights from Seoul to London.
How old do you have to be to fly from Seoul to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Seoul to London?
momondo data reveals that the most frequently booked plane model on the route from Seoul to London is Boeing 777-300ER, representing 49.38% of all bookings. The subsequent popular models are Airbus A350-900 at 43.53%, Boeing 747-8 at 6.95%, and Embraer 190 at 0.15%.
What is the most popular airline from Seoul to London?
momondo data reveals that the most frequently booked airline on the route from Seoul to London is Air China, representing 30% of all bookings. The subsequent popular airlines are China Eastern at 27%, Asiana Airlines at 22%, and Korean Air at 21%.
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 $550 | Free Cancellation | Rating 7.2 92 reviews | |||
| PriceFrom $624 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom $672 | Free Cancellation | Rating 7.4 1,211 reviews | |||
| PriceFrom $682 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom $822 | Free Cancellation | Rating 8.2 440 reviews | |||
| PriceFrom $847 | Free Cancellation | Rating 8.4 1,088 reviews |
Korean Air Flights From Seoul to London
Korean Air flies from Seoul to London around 7 times per week, with 1,088 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Seoul to London in the last 72 hours was $847 (round-trip), much lower than the average airfare cost of $1,198 for Korean Air flights on this route.
Asiana Airlines Flights From Seoul to London
Asiana Airlines (8.2/10 from 440 reviews) operates around 7 flights from Seoul to London in any given week. The average Asiana Airlines airfare for this route is around $973, with deals from around $822 rare but found on momondo. Referenced prices are for round-trip Seoul to London flight searches in the last 72 hours.
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Why should I use momondo to find a flight deal from Seoul to London?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Seoul.
Can I find flights from Seoul to London with flexible booking policies on momondo?
All flight searches from Seoul to London on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Seoul to London?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seoul to London.
I’m not ready to book a flight from Seoul to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Seoul are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.