Cheap flights from London to Seoul from €399

The cheapest month to fly to Seoul from London is in January. Flight prices, which tend to average around €544, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Seoul, with average flight prices from London averaging around €565.

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 €823 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 €650 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.

As of July 2026, prices for London to Seoul flights are approximately 37% cheaper when compared to flights at the same time last year.

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.

5 flights are operational daily from London to Seoul as of July 2026. The most popular departure time for this route is 19:00, with 56% of flights per day taking off in the afternoon.

As of July 2026, there are 35 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.