Find flights
Flight research
Deals
Korean Air Reviews

Korean Air flights from London to Seoul (LON - SEL)

LON — SEL
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from London to Seoul on Korean Air typically fly into Incheon Intl and depart from London Heathrow. Select your dates above for pricing.

Korean Air flights from London to Seoul in 2025

Find detailed information about Korean Air flights from London to Seoul. Explore the options provided by Korean Air to plan your journey from London to Seoul. Data last updated 24 October 2025.

One-way from

£461

Return from

£767

Popular in

July

Cheapest in

November

Average price (all airlines)

£594
Korean Air
  • Korean Air
  • 6/12
  • Nonstop
  • 12h 35m total
  • London to Seoul
Search Deals
Korean Air
  • Korean Air
  • 3/12-17/12
  • Nonstop
  • 27h 25m total
  • London to Seoul
Search Deals
Highest demand for flights from London to Seoul; 17% potential price increase.
Search Deals
Best time to find cheap flights from London to Seoul; 3% potential price drop.
Search Deals
Average price for all London to Seoul flights (one-way and round-trip).
Search Deals

  • Can I get a flight from London to Seoul on Korean Air for under £600?

    There are 10 flights available on Korean Air from London to Seoul for under £600. These prices can change based on many factors including date and time. To find LON-SEL flight prices for your dates, click here.

  • Does Korean Air service alternative airports for LON-SEL?

    If you’re flying LON-SEL on Korean Air and are looking for alternative airports to fly into or out of, you are in luck. When arriving in Seoul, most people land at Incheon Intl, but that is not the only available airport that Korean Air flies to. Many people choose to land at Seoul Gimpo Intl depending on where there are traveling to in the area. If you are looking for alternative departure airport to London Heathrow, consider flying out of London Gatwick which also offers Korean Air flights.

Find Korean Air flight deals from London to Seoul

Enter your travel dates to find the best prices.

Cheapest Korean Air flights from London to Seoul
Explore the most affordable Korean Air flight options available from London to Seoul. Find the lowest fares with prices last updated on 24 October 2025.

Mon 27/1018:50LHR - ICN
Nonstop12h 35mKorean Air
Wed 29/1010:40ICN - LHR
Nonstop14h 50mKorean Air
Deal found 23/10£767
Thu 6/1118:50LHR - ICN
Nonstop12h 35mKorean Air
Sat 29/1110:40ICN - LHR
Nonstop14h 50mKorean Air
Deal found 22/10£769
Wed 29/1018:50LHR - ICN
Nonstop12h 35mKorean Air
Wed 19/1110:40ICN - LHR
Nonstop14h 50mKorean Air
Deal found 23/10£775

Travel insights for Korean Air flights from London to Seoul

Get recent, data-driven insights about Korean Air flights from London to Seoul including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to Seoul with Korean Air?

Use this chart to determine the optimal time to book a return flight from London to Seoul. Price data was last updated on 17 October 2025.

Booking with Korean Air 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Seoul with Korean Air?

Currently, the most affordable month to book a Korean Air flight from London to Seoul in February, with an average price of £722. Conversely, traveling with Korean Air from London to Seoul in July will be the most expensive, with an average cost of £825. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Best time to book a flight from London to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to Seoul on another airline

Consider alternative airlines that service the Seoul area. Flight routes are based on user searches made on Cheapflights and were last updated on 24 October 2025.
Lufthansa flights from London to Seoul

See what others are saying about Korean Air

Read reviews and see what other travellers are saying about their experiences with Korean Air. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Korean Air for your next flight. Reviews last updated 24 October 2025.
Korean Air
8.4
Very Good
1,153 reviews
Check prices
Overview

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Entertainment

8.2

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.