Cheap flights from South Korea to London from £143

The cheapest month to fly to London from South Korea is in April. Flight prices, which tend to average around £132, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from South Korea averaging around £209.

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 £518. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from South Korea to London for around £713.

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

You are more likely to see cheaper flights to London from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £672 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 South Korea for as low as £528 on momondo.

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

China Eastern, Air China, and Shenzhen Airlines are the most popular carriers operating from South Korea to London

Asiana Airlines, Virgin Atlantic and Air China are the top three most popular airlines that fly to London from South Korea according to our data. Asiana Airlines is the first choice among our users, with 51% 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.

Historically, on average around 30% of flights between South Korea and London have experienced a delay on any given week. The average delay length over the past 12 months has been 93 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Korean Air have had the fewest delays on this route over the last 12 months, with about 22% of their flights experiencing any sort of delay.

5 flights are operational daily from South Korea to London as of May 2026. The most popular departure time for this route is 10:00, with 60% of flights per day taking off at midday.

As of May 2026, there are 35 flights per week flying from South Korea to London. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.