Cheap flights from South Korea to London from £170

In general, November is the cheapest month to fly from South Korea to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £507. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from South Korea averaging around £564.

On average, the least expensive day to fly to London Heathrow Airport from South Korea is on a Monday. momondo users have found tickets for Monday departures for as low as £584. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £740.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from South Korea to London Heathrow Airport in the morning for as low as £653. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £688 on average. Flights to London Heathrow Airport from South Korea at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £657 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from South Korea for as low as £507 on momondo.

There are 2 cabin classes available to choose from on South Korea to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

Asiana Airlines, Virgin Atlantic and Air China are the top three most popular airlines that fly to London Heathrow Airport from South Korea according to our data. Asiana Airlines is the first choice among our users, with 45% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% 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 123 minutes.

Generally, flights departing in the morning 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

4 flights are operational daily from South Korea to London Heathrow Airport as of August 2026. The most popular departure time for this route is 12:00, with 51% of flights per day taking off at midday.

As of August 2026, there are 30 flights per week flying from South Korea to London Heathrow Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.