Cheap flights from London Heathrow Airport to Seoul from $374
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Seoul departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to Seoul
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Shenzhen Airlines flights from London Heathrow Airport to Seoul
Our best Shenzhen Airlines deals on London Heathrow Airport to Seoul flight tickets
Scandinavian Airlines flights from London Heathrow Airport to Seoul
Our best Scandinavian Airlines deals on London Heathrow Airport to Seoul flight tickets
See travel insights to Seoul from
How to get the cheapest flight ticket from London Heathrow Airport to Seoul
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 Seoul?
The month of February is another great option to travel to Seoul, with average flight prices from London Heathrow Airport averaging around $676.
What is the cheapest day to depart on your flight to Seoul?
According to our data, Wednesday is the cheapest day to fly to Seoul from London Heathrow Airport. The lowest ticket price found for a Wednesday departure recently was $1,129. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Monday, with ticket prices averaging around $1,271.
What is the cheapest time of day to depart on your flight to Seoul?
Flying to Seoul from London Heathrow Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $704 when looking at flights departing at noon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,176 per ticket.
What is the cheapest London Heathrow to Seoul flight route?
Fly from London Heathrow to Incheon Intl for the best London Heathrow - Seoul flight prices
How far in advance should I book a flight to Seoul?
You are more likely to see cheaper flights to Seoul from London Heathrow Airport when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $918 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London Heathrow Airport for as low as $834 on momondo.
What cabin class options are available on London Heathrow to Seoul flights?
There are 4 cabin classes available to choose from on London Heathrow to Seoul 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 London Heathrow to Seoul?
China Southern, Hainan Airlines, and Lufthansa are the most popular carriers operating from London Heathrow to Seoul
What airlines fly to Seoul?
Korean Air, Air China and Lufthansa are the top three most popular airlines that fly to Seoul from London Heathrow Airport according to our data. Korean Air is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 4 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to Seoul on average per day?
As of June 2025, 3 flights take off from London Heathrow Airport and land in Seoul each day. The most common flight departure time for this route is 7:00PM, with 100% of daily flights taking off in the evening.
How many flights depart from London Heathrow Airport to Seoul on average per week?
21 flights are operational weekly from London Heathrow Airport to Seoul as of June 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
When to book flights from London Heathrow Airport to Seoul
Cheap London Heathrow Airport to Seoul (LHR to SEL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Seoul
How far is London Heathrow to Seoul by plane?
London Heathrow and Seoul are 5512.0 mi apart from one another. A reasonable flight in good conditions will take 14h 20m.
When did momondo last update prices for flights from London Heathrow Airport to Seoul?
Prices for flights from London Heathrow Airport to Seoul are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Seoul?
The number of operators available for flights from London Heathrow Airport to Seoul is 4 as of June 2025.
How old do you have to be to fly from London Heathrow Airport to Seoul?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Seoul.
What documentation or ID do you need to fly to Seoul?
The necessary travel and health documents for your Seoul trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to Seoul?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to Seoul is Boeing 777-300ER, representing 35.44% of all bookings. The subsequent popular models are Airbus A350-900 at 27.24%, Airbus A350-1000 at 10.24%, and Boeing 787-9 Dreamliner at 10.16%.
What is the most popular airline from London Heathrow Airport to Seoul?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Seoul is Korean Air (100% of total bookings).
Best airlines flying from London Heathrow Airport to Seoul
Compare and see reviews for airlines that fly from London Heathrow Airport to Seoul with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $528 | Free Cancellation | Rating 7.2 92 reviews | |||
| PriceFrom $620 | Free Cancellation | Rating 6.7 7,139 reviews | |||
| PriceFrom $990 | Free Cancellation | Rating 8.2 440 reviews | |||
| PriceFrom $1,003 | Free Cancellation | Rating 8.4 1,088 reviews |
Korean Air Flights From London Heathrow Airport to Seoul
The lowest priced Korean Air flight from London Heathrow Airport to Seoul from the last 72 hours was $1,003. Generally, Korean Air has 7 flights on this route every week with an average price of $1,155. Korean Air is rated 8.4/10 by our users.
Asiana Airlines Flights From London Heathrow Airport to Seoul
The best Asiana Airlines deal for London Heathrow Airport to Seoul flight tickets found on momondo in the last 72 hours was $990, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at $1,292 round-trip. Asiana Airlines operates 7 flights out of London Heathrow Airport into Seoul in an average week, so prices vary by time and availability. 440 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.
Why use momondo?
Why should I use momondo to find a flight deal from London to Seoul?
It is quick and easy to find London to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.
Can I find flights from London to Seoul with flexible booking policies on momondo?
All flight searches from London to Seoul on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to Seoul?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from London.
I’m not ready to book a flight from London to Seoul right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Seoul 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.