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Cheap flights from Incheon Intl Airport to London Heathrow Airport from £150

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Incheon Intl to London Heathrow are usually found in March or November, booked 62 days in advance, depart on a Thursday or Sunday and return on a Tuesday

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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 21 November 2025.

Sun 14/1214:50ICN - LHR
1 stop36h 00mAir China
Sun 4/120:25LHR - ICN
1 stop35h 10mAir China
Deal found 20/11£437
Mon 1/1213:30ICN - LHR
2 stops27h 15mLufthansa
Fri 5/1210:30LHR - ICN
1 stop15h 20mLufthansa
Deal found 20/11£438
Sat 6/1213:30ICN - LHR
2 stops27h 15mLufthansa
Thu 11/1207:30LHR - ICN
1 stop18h 20mLufthansa
Deal found 20/11£438
Wed 24/1209:25ICN - LHR
1 stop18h 10mChina Southern
Mon 12/121:30LHR - ICN
1 stop15h 45mChina Southern
Deal found 20/11£439
Sun 14/1214:50ICN - LHR
1 stop36h 00mAir China
Sat 3/121:35LHR - ICN
1 stop30h 20mAir China
Deal found 19/11£440
Thu 4/1211:10ICN - LHR
1 stop15h 40mAir China
Thu 18/1221:35LHR - ICN
1 stop30h 20mAir China
Deal found 21/11£441
Wed 24/1211:10ICN - LHR
1 stop15h 40mAir China
Wed 31/1217:40LHR - ICN
1 stop34h 40mAir China
Deal found 20/11£442
Thu 4/1212:40ICN - LHR
1 stop17h 45mAir France
Thu 11/1208:55LHR - ICN
1 stop16h 35mAir France
Deal found 21/11£443
Tue 23/1217:50ICN - LHR
1 stop33h 00mAir China
Sat 3/121:35LHR - ICN
1 stop30h 20mAir China
Deal found 21/11£444
Mon 1/1213:30ICN - LHR
2 stops27h 15mLufthansa
Wed 10/1207:40LHR - ICN
2 stops18h 10mLufthansa
Deal found 20/11£444
Mon 1/1213:30ICN - LHR
2 stops27h 15mLufthansa
Mon 8/1207:40LHR - ICN
2 stops18h 10mLufthansa
Deal found 19/11£445
Thu 11/1213:10ICN - LHR
1 stop35h 45mAir China
Tue 16/1222:10LHR - ICN
1 stop29h 45mAir China
Deal found 20/11£446

Cheap 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 21 November 2025.

Round-trip from

£437

One-way from

£150

Popular in

October

Cheapest in

March

Average price

£526

Good round-trip deal

£535 or less

Good one-way deal

£289 or less
Air China
  • Air China
  • 14/12-4/1
  • 2 total stops
  • 71h 10m total
  • Incheon to London
Search Deals
China Southern
  • China Southern
  • 24/3
  • 1 total stop
  • 40h 40m total
  • Incheon to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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.
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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 21 November 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to London Heathrow Airport that are best for you.

Fly from

Incheon Intl

Fly to

Heathrow

Route

Depart

Return

Price

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 25/1

13:05-08:05

2 stops28h 00m

London Heathrow

Sun 1/2

11:30-10:50

1 stop14h 20m

£437

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 7/12

13:30-07:45

2 stops27h 15m

London Heathrow

Thu 11/12

09:30-10:50

1 stop16h 20m

£438

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 16/12

13:05-08:05

2 stops28h 00m

London Heathrow

Wed 7/1

07:40-10:50

2 stops18h 10m

£444

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 27/2

17:50-06:40

1 stop21h 50m

London Heathrow

Tue 3/3

19:20-21:55

1 stop17h 35m

£478

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 19/2

11:05-05:35

1 stop27h 30m

London Heathrow

Wed 25/2

10:25-20:55

1 stop25h 30m

£483

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 17/12

14:15-19:10

2 stops61h 55m

London Heathrow

Wed 31/12

21:10-13:15

2 stops31h 05m

£490

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 18/12

23:00-17:00

1 stop27h 00m

London Heathrow

Wed 24/12

10:20-12:25

1 stop17h 05m

£493

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 19/1

23:45-17:00

2 stops26h 15m

London Heathrow

Mon 2/2

21:05-19:00

2 stops36h 55m

£497

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 29/12

23:45-09:20

1 stop18h 35m

London Heathrow

Mon 19/1

19:50-19:00

2 stops38h 10m

£509

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 4/3

23:45-17:40

1 stop26h 55m

London Heathrow

Thu 12/3

10:35-19:00

2 stops23h 25m

£509

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 23 results
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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 14 November 2025.

Booking 62 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, November is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of £359). Flying from Incheon Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £582). 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 21 November 2025.

When flying from Incheon Intl Airport to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 33% versus a flight at midday.

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 21 November 2025.
Read through reviews of airlines operating flights from Incheon Intl Airport to London Heathrow Airport, such as Korean Air, Asiana Airlines, andChina Eastern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
1,170 reviews
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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
8.2
Very Good
488 reviews
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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!!
China Eastern
7.2
Good
178 reviews
Korean Air
8.4
Very Good
1,170 reviews
Check prices

Boarding

8.5

Comfort

8.3

Crew

8.7

Entertainment

8.2

Overall

8.4

Food

8.1

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?

    Lufthansa, Etihad Airways, and Malaysia Airlines can get you from Incheon Intl Airport to London Heathrow Airport in just under 21h 50m. Your travel time can differ by up to 6h 10m. 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 China Eastern. Our recent data shows that you can find tickets from as low as £363 on this airline. Additional options worth looking into are Asiana Airlines and Korean Air, starting at £516 and £742 round-trip. China Eastern is currently priced 45% below the average price you’ll pay for this route.

  • 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 Virgin Atlantic (51%), Korean Air (50%) and Asiana Airlines (34%).

  • 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 £756, our data shows the cheapest flight currently is £288. When looking at the most popular route, (Incheon Intl - London Heathrow), you can expect to pay £337 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, November is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of £359). Flying from Incheon Intl Airport to London Heathrow Airport in July is currently the most expensive (average of £582). 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
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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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 3 airlines flying from Incheon Intl to Heathrow

Discover the top 3 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 21 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£363Average£694FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest£516Average£754FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£742Average£843FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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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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