Korean Air flights from London to Incheon Intl Airport (LON - ICN)

LON — ICN
24 Apr — 1 May1
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 Incheon Intl in 2026

Find detailed information about Korean Air flights from London to Incheon Intl. Explore the options provided by Korean Air to plan your journey from London to Incheon Intl. Data last updated 25 March 2026.

One-way from

£490

Return from

£681

Popular in

August

Cheapest in

November

Average price (all airlines)

£708
Korean Air
  • Korean Air
  • 12/4
  • Nonstop
  • 12h 40m total
  • London to Incheon
Korean Air
  • Korean Air
  • 26/8-22/9
  • Nonstop
  • 27h 05m total
  • London to Seoul
Highest demand for flights from London to Incheon Intl; 14% potential price increase.
Best time to find cheap flights from London to Incheon Intl; 3% potential price drop.
Average price for all London to Incheon Intl flights (one-way and round-trip).

Find Korean Air flight deals from London to Incheon Intl

Enter your travel dates to find the best prices.

Cheapest Korean Air flights from London to Incheon Intl
Explore the most affordable Korean Air flight options available from London to Incheon Intl. Find the lowest fares with prices last updated on 25 March 2026.

Wed 8/419:35
LHR
-
ICN
Nonstop12h 40m
Korean Air
Thu 7/510:55
ICN
-
LHR
Nonstop14h 25m
Korean Air
Deal found 25/3£778
Sun 26/419:35
LHR
-
ICN
Nonstop12h 40m
Korean Air
Fri 5/610:55
ICN
-
LHR
Nonstop14h 25m
Korean Air
Deal found 22/3£779
Tue 28/419:35
LHR
-
ICN
Nonstop12h 40m
Korean Air
Thu 7/510:55
ICN
-
LHR
Nonstop14h 25m
Korean Air
Deal found 25/3£785

How far ahead should I book a flight from London to Incheon Intl Airport with Korean Air?

Use this chart to determine the optimal time to book a return flight from London to Incheon Intl. Price data was last updated on 20 March 2026.

Booking with Korean Air 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Incheon Intl Airport. 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 Incheon Intl Airport with Korean Air?

Currently, the most affordable month to book a Korean Air flight from London to Incheon Intl Airport in December, with an average price of £481. Conversely, traveling with Korean Air from London to Incheon Intl Airport in January will be the most expensive, with an average cost of £784. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Incheon Intl by month

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

In terms of precipitation, rainfall in Incheon Intl Airport ranges from 20.0 - 260.0 inches per month. July is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit Incheon Intl Airport when rainfall is around 20.0 mm.

Temperature in Incheon Intl by month

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

If weather is an important factor for your trip to Incheon Intl Airport, 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 Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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.

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Other Korean Air flights from London

Browse through other Korean Air flights departing from London. Flight routes are based on user searches made on Cheapflights and were last updated on 25 March 2026.

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 25 March 2026.
Korean Air
8.4
Very Good
1,202 reviews
Overview

Comfort

8.3

Crew

8.7

Boarding

8.5

Entertainment

8.2

Food

8.1

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