Cheap flights from London to Seoul from £304

The month of January is, on average, the cheapest month to fly to Seoul from London, with most prices found around £482. If you are unable to visit Seoul during the month of January, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around £540.

The cheapest day to depart from London to Seoul is on a Monday when prices can be found for as low as £814. Flights from London to Seoul on a Sunday will generally be more expensive and average around £864. 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 to Seoul during this time can be as low as £778. Flights in the evening are often more expensive, with an average ticket price of £902.

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

You are more likely to see cheaper flights to Seoul from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around £725 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 for as low as £615 on momondo.

There are 4 cabin classes available to choose from on London 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 11% on your flight if you consider stops on a London to Seoul flight.

As of October 2026, prices for London to Seoul flights are approximately 5% more expensive when compared to flights at the same time last year.

China Eastern, Shenzhen Airlines, and China Southern are the most popular carriers operating from London to Seoul

Virgin Atlantic, Asiana Airlines and Korean Air are the top three most popular airlines that fly to Seoul from London according to our data. Virgin Atlantic is the first choice among our users, with 41% of people opting to fly with this airline when travelling to Seoul. Keep in mind that there are 18 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

Beijing (PEK) was the most common stop: 24% of momondo users choosing one-stop flights on this route connected there.

Flights via Zhengzhou (CGO) offer the lowest average return price of £329.

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 05m.

Zurich (ZRH) has the shortest average stopover time for this route: 1h 13m.

The number of flights available between London and Seoul is 5 per day as of October 2026. The most frequent departure time is 19:00, with 60% of daily flights leaving in the afternoon.

The number of flights available between London and Seoul is 36 per week as of October 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.