Cheap flights from London Heathrow Airport to South Korea from £267

The month of November is, on average, the cheapest month to fly to South Korea from London Heathrow Airport, with most prices found around £442. If you’re not able to fly to South Korea in November, then January is your next best option. Flight prices from London Heathrow Airport to South Korea during January average around £450.

The cheapest day to depart from London Heathrow Airport to South Korea is on a Tuesday when prices can be found for as low as £872. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,020.

Flying to South Korea from London Heathrow Airport at midday is the least expensive time of day to depart. momondo users have found prices as low as £640 when looking at flights departing at midday. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £952 on average. Flights to South Korea from London Heathrow Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to South Korea from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to South Korea for around £687 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to South Korea from London Heathrow Airport for as low as £621 on momondo.

There are 4 cabin classes available to choose from on London Heathrow to South Korea flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

Asiana Airlines, Korean Air and Lufthansa are the top three most popular airlines that fly to South Korea 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 South Korea. Keep in mind that there are 16 different airlines that fly to South Korea on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between London and South Korea have experienced a delay on any given week. The average delay length over the past 12 months has been 113 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

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

According to our data, Asiana Airlines have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and South Korea is 3 per day as of February 2026. The most frequent departure time is 18:00, with 100% of daily flights leaving in the evening.

As of February 2026, 21 flights take off from London Heathrow Airport and land in South Korea each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.