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Cheap flights from London Heathrow Airport to Incheon Intl Airport from £271

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ICN
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Incheon Intl are usually found in January or November, booked 24 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Heathrow to Incheon Intl

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Incheon Intl
Explore the most affordable flight options available from Heathrow to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Thu 23/421:00
LHR
-
ICN
1 stop17h 10m
China Southern
Sat 9/509:25
ICN
-
LHR
1 stop16h 40m
China Southern
Deal found 20/1£342
Sun 8/321:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Sat 21/308:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Deal found 21/1£343
Mon 27/421:20
LHR
-
ICN
1 stop32h 10m
China Eastern
Tue 5/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Deal found 20/1£348
Wed 11/321:30
LHR
-
ICN
1 stop15h 45m
China Southern
Wed 18/309:25
ICN
-
LHR
1 stop18h 10m
China Southern
Deal found 21/1£356
Wed 21/121:00
LHR
-
ICN
2 stops30h 15m
China Eastern
Tue 3/212:55
ICN
-
LHR
1 stop37h 35m
China Eastern
Deal found 20/1£361
Tue 27/121:00
LHR
-
ICN
1 stop14h 45m
China Eastern
Tue 3/207:25
ICN
-
LHR
2 stops43h 05m
China Eastern
Deal found 20/1£362
Wed 13/521:00
LHR
-
ICN
1 stop17h 10m
China Southern
Wed 20/509:25
ICN
-
LHR
1 stop16h 40m
China Southern
Deal found 20/1£365
Thu 29/121:00
LHR
-
ICN
3 stops55h 15m
China Eastern
Wed 4/316:40
ICN
-
LHR
2 stops33h 50m
China Eastern
Deal found 21/1£367
Sun 25/121:00
LHR
-
ICN
1 stop33h 05m
China Eastern
Wed 28/112:55
ICN
-
LHR
1 stop37h 35m
China Eastern
Deal found 20/1£371
Sun 25/121:30
LHR
-
ICN
1 stop15h 45m
Multiple Airlines
Tue 27/116:10
ICN
-
LHR
1 stop34h 20m
Multiple Airlines
Deal found 21/1£373
Fri 23/1021:20
LHR
-
ICN
2 stops33h 20m
China Eastern
Sun 8/1108:55
ICN
-
LHR
1 stop17h 35m
China Eastern
Deal found 20/1£374

Find flight deals from Heathrow to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Incheon Intl (ICN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2026.

Round-trip from

£342

One-way from

£271

Popular in

July

Cheapest in

January

Average price

£491

Good round-trip deal

£613 or less

Good one-way deal

£485 or less
China Southern
  • China Southern
  • 23/4-9/5
  • 2 total stops
  • 33h 50m total
  • London to Incheon
Search Deals
China Eastern
  • China Eastern
  • 22/4
  • 2 total stops
  • 29h 55m total
  • London to Incheon
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£65 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Incheon Intl.
Search Deals
Price to beat on a one-way flight from London Heathrow to Incheon Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Incheon Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Incheon Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Incheon Intl

Route

Depart

Return

Price

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 18/4

22:05-14:15

1 stop32h 10m

Incheon Intl

Tue 5/5

15:15-20:00

1 stop36h 45m

£523

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 20/5

06:40-18:35

1 stop27h 55m

Incheon Intl

Thu 12/11

23:45-17:00

2 stops26h 15m

£571

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 28/6

20:35-10:40

1 stop30h 05m

Incheon Intl

Sun 12/7

12:15-11:30

1 stop31h 15m

£579

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 22/5

09:45-10:40

1 stop40h 55m

Incheon Intl

Sun 7/6

12:15-11:30

1 stop31h 15m

£579

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 5/3

10:35-19:00

2 stops23h 25m

Incheon Intl

Fri 20/3

23:45-14:35

2 stops23h 50m

£591

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 21/5

17:00-18:35

1 stop17h 35m

Incheon Intl

Thu 4/6

23:35-17:40

1 stop26h 05m

£598

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 5/6

17:00-18:35

1 stop17h 35m

Incheon Intl

Thu 25/6

23:35-14:35

2 stops23h 00m

£602

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 18/5

13:25-10:30

Nonstop13h 05m

Incheon Intl

Wed 3/6

12:20-18:50

Nonstop14h 30m

£626

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 20/4

13:25-10:30

Nonstop13h 05m

Incheon Intl

Sun 26/4

12:20-18:50

Nonstop14h 30m

£628

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 16/4

21:45-22:05

1 stop16h 20m

Incheon Intl

Sun 3/5

01:35-15:05

1 stop21h 30m

£634

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 23 results
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Best time to book a flight from Heathrow to Incheon Intl

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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Incheon Intl Airport

How far ahead should I book a flight from London Heathrow Airport to Incheon Intl Airport?

Use this chart to determine the optimal time to book a return flight from Heathrow to Incheon Intl. Price data was last updated on 16 January 2026.

The best time to book flights from London Heathrow Airport to Incheon Intl Airport is 24 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Incheon Intl Airport?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Incheon Intl Airport (average of £349). Flying from London Heathrow Airport to Incheon Intl Airport in July is currently the most expensive (average of £602). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to ICN?

Find hourly flight availability from Heathrow to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2026.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Incheon Intl Airport at midday. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Incheon Intl. Reviews last updated 22 January 2026.
Get a feel of what it's like to fly with Korean Air, Asiana Airlines, andChina Southern from London Heathrow Airport to Incheon Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,187 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.1
Very Good
501 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Southern
7.3
Good
135 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air China
7.2
Good
138 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Lufthansa
6.8
Okay
7,740 reviews
Korean Air
8.4
Very Good
1,187 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Incheon Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Incheon Intl Airport?

    Departing from London Heathrow Airport to Incheon Intl Airport will take you 27h 55m. The distance from London Heathrow Airport to Incheon Intl Airport is about 5503 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Incheon Intl Airport round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Incheon Intl Airport round-trip from £319. Other airlines that can offer you cheap pricing are China Southern, from £348, and Air China, from £377. China Eastern is currently priced 54% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London Heathrow Airport to Incheon Intl Airport one-way?

    To fly one-way, consider booking your trip with China Southern, which is currently one of the cheapest options available, starting at £241. China Eastern flights start at £242 while deals on Air China start at £277 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Incheon Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to Incheon Intl Airport on time: Korean Air (73%), Virgin Atlantic (73%), Asiana Airlines (67%).

  • What are the cheapest flights from London Heathrow Airport to Incheon Intl Airport?

    On average you can expect to pay £1,028 for a flight from London Heathrow Airport to Incheon Intl Airport. The cheapest flight overall is £422 while the most popular route, (London Heathrow - Incheon Intl) is currently priced at £367.

  • Can I find deals for flights from Heathrow to Incheon Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to Incheon Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Incheon Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Incheon Intl.

  • Can I find deals for business class flights from Heathrow to Incheon Intl?

    Yes. Cheapflights offers flight deals from Heathrow to Incheon Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Incheon Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Incheon Intl Airport (average of £349). Flying from London Heathrow Airport to Incheon Intl Airport in July is currently the most expensive (average of £602). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Daejeon
Seongnam

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Fly from Heathrow to Incheon Intl on these airlines

Choose from the following airlines for your flight from Heathrow to Incheon Intl. Flights are based on user searches made on Cheapflights and were last updated on 22 January 2026.
Asiana Airlines flights from London Heathrow to Incheon Intl
Korean Air flights from London Heathrow to Incheon Intl
China Southern flights from London Heathrow to Incheon Intl

Top 10 airlines flying from Heathrow to Incheon Intl

Discover the top 10 airlines that operate flights from Heathrow to Incheon Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£319Average£455FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£348Average£482FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£377Average£483FlexibilityNo cancel feeOn-time67%
Search Air China flights
LufthansaCheapest£423Average£606FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£456Average£595FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Etihad AirwaysCheapest£527Average£668FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£543Average£678FlexibilityNo cancel feeOn-time77%
Search Air France flights
LOTCheapest£556Average£766FlexibilityNo cancel feeOn-time81%
Search LOT flights
Turkish AirlinesCheapest£563Average£629FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
KLMCheapest£564Average£723FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Incheon Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Incheon Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Incheon Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Incheon Intl.

Can Cheapflights find flights from Heathrow to Incheon Intl with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Incheon Intl, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Incheon Intl become cheaper?

Yes! Start tracking prices for Heathrow to Incheon Intl flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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