The cheapest times to fly from LHR to ICN are

  • January 1st to April 1st
  • April 23rd to June 10th
  • October 29th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from LHR to ICN is late November to early December. Prices can be as high as $1100 for Saturday flights during early to mid August, or as low as $455 for Tuesday flights around late November to early December.


When to Fly to Seoul

Flying from London (LHR) to Seoul (ICN) will usually cost between $489 to $845 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late November to early December with an average ticket price of $493. Due to high demand the most expensive time to fly is early to mid August, with an average price of $936. Planning your trip to low-cost times can easily save you $443 on economy flights and even more on first-class flights. Generally, any price below $594 can be considered a good price for a round-trip LHR to ICN flight.

See below for a graph of average weekly prices for the LHR to ICN route. All prices are for round-trip tickets in USD.

LHR to ICN Flight Prices

Compared to other flights, the LHR to ICN flight is cheaper than the average and costs less than the average flight leaving from London. The average price per mile (for a direct flight) is $0.07, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Seoul, and Sundays are the most expensive days to return to London. Selecting flights on the least expensive days could save you up to $64 (8%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $598. Return trip prices are from the ICN to LHR flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from LHR to ICN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 10 hour 53 minutes may be realistic.


Flight Questions Answered

Still have questions about flying from LHR to ICN? We’ve got answers.

Which airlines fly this route?

You can find 52 major airlines flying this route most often: Aer Lingus, Aeroflot, Air Astana, Air Canada, Air China, Air France, Air India, Air Seoul, Air Serbia, Alitalia, ANA, Asiana, Austrian, Beijing Capital, British Airways, Brussels Airlines, Cathay Pacific, China Airlines, China Eastern, China Southern, EASTAR JET, EgyptAir, Emirates, Ethiopian, Etihad, Eurowings, EVA Air, Finnair, Garuda Indonesia, Hainan, Hong Kong Airlines, JAL, Jeju Air, KLM, Korean Air, LOT, Lufthansa, Malaysia Airlines, Qatar Airways, Royal Brunei, S7, SAS, Shandong, Shanghai Airlines, Shenzhen, SWISS, THAI, Tianjin Airlines, Turkish Airlines, Vietnam Airlines, Virgin Atlantic, Xiamen, and potentially more during busy seasons.

How far away is it from Incheon International Airport to London Heathrow Airport?

The distance between the two airports is roughly 5505 miles or 8859 kilometers.

How long does it take to fly from LHR to ICN?

The real-world flight time for a nonstop LHR to ICN flight is about 10 hour 53 minutes.

How many flights go between London and Seoul?

It depends on the day of the week and the date, but a typical day might have around 134 available flights from LHR to ICN.


Airport Location Info


Departing Airport

Origination code LHR
Origination airport name London Heathrow Airport
City London
Country the United Kingdom
Latitude 51.5
Longitude -0.5

Return Airport

Destination code ICN
Destination airport name Incheon International Airport
City Seoul
Country South Korea
Latitude 37.5
Longitude 126.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.