Cheap flights from London Heathrow Airport to Seoul from £262

The month of November is, on average, the cheapest month to fly to Seoul from London Heathrow Airport, with most prices found around £451. If you are unable to visit Seoul during the month of November, then departing from London Heathrow Airport during the month January is also very affordable. Most momondo users find prices during this month for around £458.

The cheapest day to depart from London Heathrow Airport to Seoul is on a Wednesday when prices can be found for as low as £881. Flights from London Heathrow Airport to Seoul on a Saturday will generally be more expensive and average around £1,061. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Seoul is at midday. Flights from London Heathrow Airport to Seoul during this time can be as low as £650. Flights in the evening are often more expensive, with an average ticket price of £970.

Fly from London Heathrow to Incheon Intl for the best London Heathrow - Seoul flight prices

You are more likely to see cheaper flights to Seoul from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around £703 when searching weeks before you fly. 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 £598 on momondo.

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.

You could potentially save up to 4% on your flight if you consider stops on a London Heathrow Airport to Seoul flight.

As of March 2026, prices for London Heathrow Airport to Seoul flights are approximately 1% more expensive when compared to flights at the same time last year.

China Eastern, Vietnam Airlines, and SWISS are the most popular carriers operating from London Heathrow to Seoul

Asiana Airlines, Virgin Atlantic and Korean Air are the top three most popular airlines that fly to Seoul from London Heathrow Airport according to our data. Asiana Airlines is the first choice among our users, with 35% of people opting to fly with this airline when travelling to Seoul. Keep in mind that there are 16 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

Frankfurt am Main (FRA) was the most common stop: 21% of momondo users choosing one-stop flights on this route connected there.

Flights via Shanghai (PVG) offer the lowest average return price of £366.

Flights connecting via Copenhagen (CPH) have the shortest average one-way travel time: 14h 54m.

Copenhagen (CPH) has the shortest average stopover time for this route: 1h 56m.

As of March 2026, 3 flights take off from London Heathrow Airport and land in Seoul each day. The most common flight departure time for this route is 18:00, with 100% of daily flights taking off in the evening.

21 flights are operational weekly from London Heathrow Airport to Seoul as of March 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.