Cheap flights from London to Seoul from $335

The month of January is another great option to travel to Seoul, with average flight prices from London averaging around $605.

According to our data, Wednesday is the cheapest day to fly to Seoul from London. The lowest ticket price found for a Wednesday departure recently was $1,171. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Tuesday, with ticket prices averaging around $1,298.

Flying to Seoul from London at noon is the least expensive time of day to depart. momondo users have found prices as low as $978 when looking at flights departing at noon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,277 per ticket.

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 $925 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London for as low as $836 on momondo.

There are 3 cabin classes 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 9% on your flight if you consider stops on a London to Seoul flight.

As of February 2026, prices for London to Seoul flights are approximately 19% cheaper when compared to flights at the same time last year.

AirAsia X, China Eastern, and SWISS are the most popular carriers operating from London to Seoul

Lufthansa, Asiana Airlines and Korean Air are the top three most popular airlines that fly to Seoul from London according to our data. Lufthansa is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 3 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.

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 at night have, in the past, seen delays more frequently in comparison.

Beijing (PEK) was the most common stop: 28% of momondo users choosing 1-stop flights on this route connected there.

Flights via Warsaw (WAW) offer the lowest average round-trip price of $695.

Flights connecting via Shanghai (PVG) have the shortest average one-way travel time: 15h 00m.

Munich (MUC) has the shortest average layover time for this route: 1h 43m.

The number of flights available between London and Seoul is 3 per day as of February 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

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