Cheap flights from London to Seoul from €331

The cheapest month to fly to Seoul from London is in November. Flight prices, which tend to average around €489, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seoul, with average flight prices from London averaging around €512.

On average, the least expensive day to fly to Seoul from London is on a Sunday. momondo users have found tickets for Sunday departures for as low as €927. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London to Seoul on a Friday will generally be more expensive and average around €1,034. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You are more likely to see cheaper flights to Seoul from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around €783 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London for as low as €707 on momondo.

There is only 1 cabin class available to choose from on London to Seoul 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 50% on your flight if you consider stops on a London to Seoul flight.

Historically, on average around 0% of flights between London and Seoul have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

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

3 flights are operational daily from London to Seoul as of February 2026. The most popular departure time for this route is 18:00, with 100% of flights per day taking off in the evening.

As of February 2026, there are 21 flights per week flying from London to Seoul. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.