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Cheap flights from Incheon Intl Airport to London Heathrow Airport from £186

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 30/3. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: The best prices from Incheon Intl to London Heathrow are usually found in November or March, booked 31 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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 25 March 2025.

Round-trip from

£417

One-way from

£186

Popular in

September

Cheapest in

November

Average price

£531

Good round-trip deal

£745 or less

Good one-way deal

£363 or less
China Eastern
  • China Eastern
  • 13/6-15/6
  • 2 total stops
  • 64h 40m total
  • Incheon to London
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Air China
  • Air China
  • 30/3
  • 1 total stop
  • 34h 40m total
  • Incheon to London
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Highest demand for flights based on searches. 15% potential increase in price (£89 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Incheon Intl to London Heathrow.
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Price to beat on a one-way flight from Incheon Intl to London Heathrow.
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Find flight deals from Incheon Intl to Heathrow

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 25 March 2025.

Fri 13/616:35ICN - LHR
1 stop34h 05mChina Eastern
Sun 15/621:20LHR - ICN
1 stop30h 35mChina Eastern
Deal found 25/3£417
Sat 5/414:40ICN - LHR
1 stop35h 05mAir China
Tue 22/422:40LHR - ICN
1 stop33h 55mAir China
Deal found 24/3£419
Thu 22/509:25ICN - LHR
1 stop16h 40mChina Southern
Sun 1/621:00LHR - ICN
1 stop17h 10mChina Southern
Deal found 24/3£426
Mon 31/314:40ICN - LHR
1 stop35h 05mMultiple Airlines
Mon 14/422:05LHR - ICN
1 stop31h 35mMultiple Airlines
Deal found 24/3£430
Sun 6/421:50ICN - LHR
1 stop32h 20mFinnair
Fri 25/413:00LHR - ICN
1 stop38h 20mFinnair
Deal found 24/3£438
Thu 27/312:15ICN - LHR
1 stop18h 10mAir France
Tue 1/406:15LHR - ICN
1 stop16h 15mAir France
Deal found 24/3£452
Thu 22/500:10ICN - LHR
1 stop24h 25mMalaysia Airlines
Thu 5/611:00LHR - ICN
1 stop27h 30mMalaysia Airlines
Deal found 23/3£455
Mon 7/401:35ICN - LHR
1 stop37h 25mEtihad Airways
Thu 24/421:45LHR - ICN
1 stop16h 20mEtihad Airways
Deal found 24/3£462
Wed 26/311:00ICN - LHR
1 stop17h 15mSWISS
Mon 31/318:40LHR - ICN
1 stop29h 45mSWISS
Deal found 24/3£472
Wed 26/313:30ICN - LHR
1 stop16h 30mLufthansa
Mon 31/307:25LHR - ICN
1 stop18h 30mLufthansa
Deal found 25/3£486
Sat 31/514:40ICN - LHR
1 stop37h 20mShenzhen Airlines
Sun 29/622:05LHR - ICN
1 stop31h 35mShenzhen Airlines
Deal found 24/3£503

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 25 March 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

Fri 13/6

16:35-18:40

1 stop34h 05m

London Heathrow

Sun 15/6

21:20-11:55

1 stop30h 35m

£417

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 13/6

14:55-20:15

1 stop37h 20m

London Heathrow

Fri 20/6

20:25-11:35

1 stop31h 10m

£418

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 22/5

09:25-18:05

1 stop16h 40m

London Heathrow

Sun 1/6

21:00-22:10

1 stop17h 10m

£426

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 6/4

21:50-20:40

1 stop30h 50m

London Heathrow

Mon 21/4

18:10-11:20

1 stop33h 10m

£436

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 4/4

15:30-20:15

1 stop36h 45m

London Heathrow

Sat 12/4

22:05-15:40

1 stop33h 35m

£446

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 22/5

00:10-16:35

1 stop24h 25m

London Heathrow

Thu 5/6

11:00-22:30

1 stop27h 30m

£455

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 7/4

01:35-07:00

1 stop37h 25m

London Heathrow

Thu 24/4

21:45-22:05

1 stop16h 20m

£462

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 9/4

10:05-07:55

1 stop29h 50m

London Heathrow

Sat 19/4

18:40-08:25

1 stop29h 45m

£476

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 10/4

11:40-22:40

1 stop19h 00m

London Heathrow

Sat 3/5

06:55-09:55

1 stop19h 00m

£489

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 20/6

14:40-19:50

1 stop37h 10m

London Heathrow

Sat 28/6

22:05-13:40

1 stop31h 35m

£500

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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 21 March 2025.

Booking 31 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, January is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of £112). Flying from Incheon Intl Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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 25 March 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 39% versus a flight in the morning.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 25 March 2025.
See what other customers who have flown with Thai Airways, Finnair and Vietnam Airlines from Seoul to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
316 reviews
Check prices

Food

7.3

Entertainment

6.9

Boarding

7.9

Overall

7.8

Comfort

7.6

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
Thai Airways
7.8
Good
316 reviews
Thai Airways
7.8
Good
316 reviews
Check prices

Food

7.3

Entertainment

6.9

Boarding

7.9

Overall

7.8

Comfort

7.6

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
Finnair
7.6
Good
1,266 reviews
Thai Airways
7.8
Good
316 reviews
Check prices

Food

7.3

Entertainment

6.9

Boarding

7.9

Overall

7.8

Comfort

7.6

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
Vietnam Airlines
7.6
Good
192 reviews
Thai Airways
7.8
Good
316 reviews
Check prices

Food

7.3

Entertainment

6.9

Boarding

7.9

Overall

7.8

Comfort

7.6

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
SWISS
7.5
Good
1,569 reviews
Thai Airways
7.8
Good
316 reviews
Check prices

Food

7.3

Entertainment

6.9

Boarding

7.9

Overall

7.8

Comfort

7.6

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight
Qatar Airways
7.4
Good
3,540 reviews
Thai Airways
7.8
Good
316 reviews
Check prices

Food

7.3

Entertainment

6.9

Boarding

7.9

Overall

7.8

Comfort

7.6

Crew

8.3

Reviews

1 / 17
10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight

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.

  • 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 £417 on this airline. Additional options worth looking into are Air China and China Southern, starting at £418 and £426 round-trip. China Eastern is currently priced 35% 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 Air China (£186), China Eastern (£200), and Malaysia Airlines (£208).

  • 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 (69%), Asiana Airlines (67%) and Virgin Atlantic (66%).

  • 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 £1,075, our data shows the cheapest flight currently is £351. When looking at the most popular route, (Incheon Intl - London Heathrow), you can expect to pay £371 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, January is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of £112). Flying from Incheon Intl Airport to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Hounslow
Deal
Milton Keynes
Gatwick
Croydon
Luton
Slough
Eastbourne
Wembley
Northampton
Swindon
Hayes
Ilford
Crawley
Southend-on-Sea
Winchester
Maidstone
Ipswich
Watford
Southall

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 5 airlines flying from Incheon Intl to Heathrow

Discover the top 5 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£356Average£409FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£367Average£561FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
FinnairCheapest£582Average£696FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Asiana AirlinesCheapest£612Average£822FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£818Average£959FlexibilityNo 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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