Cheap flights from Seoul to London from £167

The cheapest month to fly to London from Seoul is in April. Flight prices, which tend to average around £131, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Seoul averaging around £168.

Our data shows that Friday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £517. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £712.

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

You are more likely to see cheaper flights to London from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £666 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Seoul for as low as £509 on momondo.

You could potentially save up to 49% on your flight if you consider stops on a Seoul to London flight.

China Eastern, Qatar Airways, and Etihad Airways are the most popular carriers operating from Seoul to London

Asiana Airlines, Virgin Atlantic 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 52% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Copenhagen (CPH) was the most common stop: 27% of momondo users choosing one-stop flights on this route connected there.

Flights via Zhengzhou (CGO) offer the lowest average return price of £488.

Flights connecting via Warsaw (WAW) have the shortest average one-way travel time: 17h 30m.

Abu Dhabi (AUH) has the shortest average stopover time for this route: 1h 31m.

As of May 2026, there are 5 flights per day flying from Seoul to London. The most common time of day flights depart is 10:00, with 60% of flights taking off at midday.

The number of flights available between Seoul and London is 35 per week as of May 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.