Cheap flights from Incheon Intl Airport to London from £172

In general, November is the cheapest month to fly from Incheon Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £501. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Incheon Intl Airport averaging around £567.

On average, the least expensive day to fly to London Heathrow Airport from Incheon Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as £585. 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 £742.

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 Incheon Intl Airport to London Heathrow Airport in the morning for as low as £664. 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 £689 on average. Flights to London Heathrow Airport from Incheon Intl Airport 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 Incheon Intl - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £658 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 Incheon Intl Airport for as low as £507 on momondo.

There are 2 cabin classes available to choose from on Incheon Intl Airport 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.

You could potentially save up to 28% on your flight if you consider stops on a Incheon Intl Airport to London Heathrow Airport flight.

As of September 2026, prices for Incheon Intl Airport to London Heathrow Airport flights are approximately 12% more expensive when compared to flights at the same time last year.

Vietnam Airlines, Etihad Airways, and Oman Air are the most popular carriers operating from Incheon Intl to London Heathrow

Asiana Airlines, Virgin Atlantic and Air China are the top three most popular airlines that fly to London Heathrow Airport from Incheon Intl Airport according to our data. Asiana Airlines is the first choice among our users, with 44% 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 Incheon 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.

As of September 2026, there are 4 flights per day flying from Incheon Intl Airport to London Heathrow Airport. The most common time of day flights depart is 12:00, with 56% of flights taking off at midday.

32 flights are operational weekly from Incheon Intl Airport to London Heathrow Airport as of September 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.