Cheap flights from Seoul to London from $279
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 11/3. 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 Heathrow Airport
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 typical price of a round-trip flight between Seoul and London Heathrow Airport?
What is the cheapest month to fly to London Heathrow Airport?
The month of March is, on average, the cheapest month to fly to London Heathrow Airport from Seoul, with most prices found around $619. If you’re not able to fly to London Heathrow Airport in March, then December is your next best option. Flight prices from Seoul to London Heathrow Airport during December average around $764.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Monday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $972. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,121.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Seoul to London Heathrow Airport in the evening for as low as $977. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $1,050.
What is the cheapest Seoul to London Heathrow flight route?
Fly from Incheon Intl to London Heathrow for the best Seoul - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $850 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Seoul for as low as $767 on momondo.
What cabin class options are available on Seoul to London Heathrow flights?
There are 2 cabin classes available to choose from on Seoul to London Heathrow 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 Heathrow?
Etihad Airways, Malaysia Airlines, and Air China are the most popular carriers operating from Seoul to London Heathrow
What airlines fly to London Heathrow Airport?
Asiana Airlines, Korean Air and Air China are the top three most popular airlines that fly to London Heathrow Airport from Seoul according to our data. Asiana Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 5 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seoul to London Heathrow Airport on average per day?
As of July 2025, there are 3 flights per day flying from Seoul to London Heathrow Airport. 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 Heathrow Airport on average per week?
The number of flights available between Seoul and London Heathrow Airport is 21 per week as of July 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 Heathrow Airport
Cheap Seoul to London Heathrow Airport (SEL to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seoul to London Heathrow Airport
How far is Seoul to London Heathrow by plane?
A flight from Seoul to London Heathrow will travel around 5512.0 mi. In terms of flight time, this usually takes a little over 14h 05m.
When did momondo last update prices for flights from Seoul to London Heathrow Airport?
Prices for flights from Seoul to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Seoul to London Heathrow Airport?
As of July 2025, there are 5 operators available to choose from for flights from Seoul to London Heathrow Airport.
How old do you have to be to fly from Seoul to London Heathrow Airport?
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 Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Seoul to London Heathrow Airport is Boeing 777-300ER, representing 46.70% of all bookings. The subsequent popular models are Airbus A350-900 at 45.10%, Boeing 747-8 at 8.06%, and Embraer 190 at 0.14%.
What is the most popular airline from Seoul to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Seoul to London Heathrow Airport is Asiana Airlines, representing 57% of all bookings. The subsequent popular airline is Korean Air at 43%.
Best airlines flying from Seoul to London Heathrow Airport
Compare and see reviews for airlines that fly from Seoul to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $550 | Free Cancellation | Rating 7.2 89 reviews | |||
| PriceFrom $672 | Free Cancellation | Rating 7.4 1,222 reviews | |||
| PriceFrom $682 | Free Cancellation | Rating 6.8 7,197 reviews | |||
| PriceFrom $822 | Free Cancellation | Rating 8.2 454 reviews | |||
| PriceFrom $847 | Free Cancellation | Rating 8.4 1,105 reviews |
Korean Air Flights From Seoul to London Heathrow Airport
The lowest priced Korean Air flight from Seoul to London Heathrow Airport from the last 72 hours was $847. Generally, Korean Air has 7 flights on this route every week with an average price of $1,216. Korean Air is rated 8.4/10 by our users.
Asiana Airlines Flights From Seoul to London Heathrow Airport
The best Asiana Airlines deal for Seoul to London Heathrow Airport flight tickets found on momondo in the last 72 hours was $822, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at $975 round-trip. Asiana Airlines operates 7 flights out of Seoul into London Heathrow Airport in an average week, so prices vary by time and availability. 454 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.
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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?
Yes. momondo allows you to filter the results for Seoul to London flights to just show those with 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?
If you are not ready to book a flight from Seoul to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.