Flights
Insights
FAQs

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

LON — SEL
22 Jun — 29 Jun1
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 2026

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 23 May 2026.

One-way from

£515

Return from

£780

Popular in

July

Cheapest in

November

Average price (all airlines)

£603
Korean Air
  • Korean Air
  • 2/6
  • Nonstop
  • 12h 40m total
  • London to Seoul
Search Deals
Korean Air
  • Korean Air
  • 23/6-26/7
  • Nonstop
  • 27h 05m total
  • London to Seoul
Search Deals
Highest demand for flights from London to Seoul; 15% potential price increase.
Search Deals
Best time to find cheap flights from London to Seoul; 2% potential price drop.
Search Deals
Average price for all London to Seoul flights (one-way and round-trip).
Search Deals

  • 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.

  • Can I get a flight from London to Seoul on Korean Air for under £670?

    There are 1 flights available on Korean Air from London to Seoul for under £670. These prices can change based on many factors including date and time. To find LON-SEL flight prices for your dates, click here.

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 23 May 2026.

Tue 23/619:35
LHR
-
ICN
Nonstop12h 40m
Korean Air
Sun 26/710:55
ICN
-
LHR
Nonstop14h 25m
Korean Air
Deal found 18/5£780
Sun 21/619:35
LHR
-
ICN
Nonstop12h 40m
Korean Air
Wed 1/710:55
ICN
-
LHR
Nonstop14h 25m
Korean Air
Deal found 21/5£803
Wed 3/619:35
LHR
-
ICN
Nonstop12h 40m
Korean Air
Mon 6/710:55
ICN
-
LHR
Nonstop14h 25m
Korean Air
Deal found 19/5£806

Which month is the cheapest to fly Economy class from London to Seoul?

For Economy class flights, the cheapest month to fly this route is February. The most expensive months are July and December.

Weekly Korean Air flight availability from London to Seoul

The most Korean Air flights from LON to SEL are scheduled on a Monday (2 on average). You will have fewer Korean Air flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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).

When is the best time to book a flight to Seoul with Korean Air?

The best time to book a flight to Seoul with Korean Air is 38 days before departure. On average, fares are higher if you book 9 days before departure.

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 23 May 2026.
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 23 May 2026.
Korean Air
8.4
Very Good
1,217 reviews
Check prices
Overview

Boarding

8.5

Food

8.1

Crew

8.7

Entertainment

8.2

Comfort

8.3

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.