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Cheap flights from Incheon Intl Airport to London Heathrow Airport from £145

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
26 Apr — 3 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Incheon Intl to London Heathrow are usually found in November or June, booked 76 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Incheon Intl to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Incheon Intl to Heathrow
Explore the most affordable flight options available from Incheon Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 March 2026.

Sat 9/516:15
ICN
-
LHR
1 stop34h 25m
China Eastern
Mon 18/521:20
LHR
-
ICN
1 stop34h 00m
China Eastern
Deal found 23/3£393
Tue 12/516:20
ICN
-
LHR
1 stop34h 20m
China Eastern
Tue 30/621:20
LHR
-
ICN
1 stop36h 05m
China Eastern
Deal found 23/3£394
Tue 26/518:25
ICN
-
LHR
1 stop32h 15m
China Eastern
Tue 9/621:20
LHR
-
ICN
1 stop33h 50m
China Eastern
Deal found 24/3£414
Thu 14/515:15
ICN
-
LHR
1 stop36h 45m
Shenzhen Airlines
Wed 27/522:05
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Deal found 23/3£415
Tue 19/517:45
ICN
-
LHR
1 stop34h 15m
Shenzhen Airlines
Wed 27/522:05
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Deal found 26/3£416
Fri 19/615:15
ICN
-
LHR
1 stop36h 35m
Shenzhen Airlines
Sun 28/622:05
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Deal found 23/3£424
Sat 6/617:45
ICN
-
LHR
1 stop34h 15m
Shenzhen Airlines
Sat 13/622:05
LHR
-
ICN
1 stop34h 40m
Shenzhen Airlines
Deal found 26/3£426
Tue 26/517:45
ICN
-
LHR
1 stop34h 15m
Shenzhen Airlines
Sat 6/622:05
LHR
-
ICN
1 stop34h 40m
Shenzhen Airlines
Deal found 24/3£427
Tue 12/517:45
ICN
-
LHR
1 stop34h 15m
Shenzhen Airlines
Mon 25/522:05
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Deal found 25/3£429
Tue 26/515:15
ICN
-
LHR
1 stop36h 45m
Shenzhen Airlines
Sun 7/622:05
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Deal found 22/3£429
Fri 19/615:15
ICN
-
LHR
1 stop36h 35m
Shenzhen Airlines
Wed 24/622:05
LHR
-
ICN
1 stop32h 10m
Shenzhen Airlines
Deal found 25/3£430

Find flight deals from Incheon Intl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Heathrow (LHR). 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 27 March 2026.

Round-trip from

£393

One-way from

£145

Popular in

October

Cheapest in

November

Average price

£554

Good round-trip deal

£520 or less

Good one-way deal

£305 or less
China Eastern
  • China Eastern
  • 9/5-18/5
  • 2 total stops
  • 68h 25m total
  • Incheon to London
Search Deals
China Eastern
  • China Eastern
  • 9/5
  • 1 total stop
  • 34h 25m total
  • Incheon to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£86 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Incheon Intl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Incheon Intl to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Incheon Intl to Heathrow 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 27 March 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 27/5

01:35-15:05

1 stop21h 30m

London Heathrow

Wed 3/6

09:30-10:50

1 stop17h 20m

£575
Fastest return journey

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 10/6

10:55-17:20

Nonstop14h 25m

London Heathrow

Mon 29/6

19:35-16:15

Nonstop12h 40m

£642

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 19/5

07:50-14:20

Nonstop14h 30m

London Heathrow

Wed 3/6

16:35-13:20

Nonstop12h 45m

£644

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 10/8

21:50-20:40

1 stop30h 50m

London Heathrow

Thu 20/8

10:20-11:20

1 stop17h 00m

£672

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 9/5

12:25-18:50

Nonstop14h 25m

London Heathrow

Wed 20/5

13:25-10:05

Nonstop12h 40m

£689

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 28/5

10:55-17:20

Nonstop14h 25m

London Heathrow

Sun 7/6

19:35-16:15

Nonstop12h 40m

£721

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 30/4

23:55-16:10

1 stop24h 15m

London Heathrow

Mon 4/5

20:40-18:40

1 stop38h 00m

£721

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 24/7

18:30-13:15

1 stop26h 45m

London Heathrow

Sat 24/10

21:25-17:15

1 stop35h 50m

£782

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 8/5

00:15-14:10

1 stop21h 55m

London Heathrow

Sat 16/5

08:50-18:05

2 stops25h 15m

£799

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 27/6

01:20-14:05

1 stop20h 45m

London Heathrow

Sun 5/7

11:30-17:05

2 stops21h 35m

£820

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Incheon Intl to Heathrow

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

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

Use this chart to determine the optimal time to book a return flight from Incheon Intl to Heathrow. Price data was last updated on 13 March 2026.

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Incheon Intl Airport to London Heathrow 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 Incheon Intl Airport to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of £344). Flying from Incheon Intl Airport to London Heathrow Airport in August is currently the most expensive (average of £549). 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 ICN to LHR?

Find hourly flight availability from Incheon Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 March 2026.

When flying from Incheon Intl Airport to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Incheon Intl Airport to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 27 March 2026.
Read through reviews of airlines operating flights from Incheon Intl Airport to London Heathrow Airport, such as Korean Air,Asiana Airlines, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,203 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.1
Very Good
506 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Virgin Atlantic
7.5
Good
685 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air China
7.3
Good
144 reviews
Korean Air
8.4
Very Good
1,203 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Heathrow. 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 Incheon Intl Airport to London Heathrow Airport?

    Etihad Airways, Korean Air, and Asiana Airlines can get you from Incheon Intl Airport to London Heathrow Airport in just under 14h 25m. Your travel time can differ by up to 7h 05m. Airlines will cover a distance of 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 Incheon Intl Airport to London Heathrow Airport round-trip?

    Our cheapest airline available from Incheon Intl Airport to London Heathrow Airport is Air China. Our recent data shows that you can find tickets from as low as £442 on this airline. Additional options worth looking into are Virgin Atlantic and Asiana Airlines, starting at £462 and £483 round-trip. Air China is currently priced 34% below the average price you’ll pay for this route.

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

    The cheapet airlines for a one-way flight from Incheon Intl Airport to London Heathrow Airport are China Eastern (£120), Air China (£132), and Virgin Atlantic (£136).

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

    The top 3 most reliable airlines when flying from Incheon Intl Airport to London Heathrow Airport are Korean Air (76%), Virgin Atlantic (62%) and Asiana Airlines (28%).

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

    While on average a flight from Incheon Intl Airport to London Heathrow Airport is generally £704, our data shows the cheapest flight currently is £134. When looking at the most popular route, (Incheon Intl - London Heathrow), you can expect to pay £426 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Incheon Intl to Heathrow 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 Incheon Intl Airport to London Heathrow Airport?

    Currently, February is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of £344). Flying from Incheon Intl Airport to London Heathrow Airport in August is currently the most expensive (average of £549). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Swindon
Bedford

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Alternative routes for Incheon Intl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Gatwick flights
Incheon Intl to Stansted flights
Incheon Intl to London City flights
Gimpo Intl to Heathrow flights
Gimpo Intl to London City flights

Top 4 airlines flying from Incheon Intl to Heathrow

Discover the top 4 airlines that operate flights from Incheon Intl to Heathrow. 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 27 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£442Average£579FlexibilityNo cancel feeOn-time67%
Search Air China flights
Virgin AtlanticCheapest£462Average£705FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Asiana AirlinesCheapest£483Average£564FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£620Average£825FlexibilityNo cancel feeOn-time81%
Search Korean Air 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 Incheon Intl to Heathrow?

Cheapflights helps you search for flights from Incheon Intl to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

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 Incheon Intl to Heathrow.

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

Certainly. Search results for flights to Heathrow from Incheon Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes! Start tracking prices for Incheon Intl to Heathrow 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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