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$186+ Cheap flights from Incheon Intl (ICN) to Heathrow (LHR)

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
Mar 3 — Mar 101
Tue 3/3
Tue 3/10
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to London Heathrow are usually found in November or March, booked 80 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap 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 February 1, 2026.

This FlightHub deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:20 pm
ICN
-
LHR
1 stop34h 10m
China Eastern
Mon 3/99:00 pm
LHR
-
ICN
1 stop31h 30m
China Eastern
Deal found 1/30$473
This Mytrip deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:10 pm
ICN
-
LHR
1 stop34h 20m
China Eastern
Sat 3/79:00 pm
LHR
-
ICN
1 stop33h 05m
China Eastern
Deal found 1/29$481
This Mytrip deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:25 pm
ICN
-
LHR
1 stop32h 05m
China Eastern
Tue 3/109:00 pm
LHR
-
ICN
1 stop14h 45m
China Eastern
Deal found 1/31$483
This Mytrip deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:25 pm
ICN
-
LHR
1 stop32h 05m
China Eastern
Mon 3/99:00 pm
LHR
-
ICN
1 stop31h 30m
China Eastern
Deal found 1/31$487
This China Eastern deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:55 am
ICN
-
LHR
1 stop17h 35m
China Eastern
Mon 3/99:00 pm
LHR
-
ICN
1 stop29h 55m
China Eastern
Deal found 1/31$490
This FlightHub deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:15 pm
ICN
-
LHR
1 stop35h 45m
China Southern
Tue 6/210:10 pm
LHR
-
ICN
1 stop31h 45m
China Southern
Deal found 1/30$524
This FlightHub deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/213:15 pm
ICN
-
LHR
1 stop35h 45m
China Southern
Sun 5/3110:10 pm
LHR
-
ICN
1 stop33h 15m
China Southern
Deal found 2/1$525
This Gotogate deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:15 pm
ICN
-
LHR
1 stop35h 45m
China Southern
Sat 6/139:00 pm
LHR
-
ICN
1 stop17h 10m
China Southern
Deal found 1/31$540
This Shenzhen Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:45 pm
ICN
-
LHR
1 stop35h 25m
Shenzhen Airlines
Sun 3/89:10 pm
LHR
-
ICN
1 stop33h 35m
Shenzhen Airlines
Deal found 2/1$565

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 February 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$473
(FlightHub)

One-way from

$186
(Mytrip)

Popular in

October

Cheapest in

November

Average price

$819

Good round-trip deal

$776 or less

Good one-way deal

$580 or less
Provider with most accurate pricing for Incheon Intl-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Incheon Intl-London Heathrow flights.
Search Deals
From Incheon Intl to London Heathrow
Search Deals
One-way flight from Incheon Intl to London Heathrow
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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

 
Customize 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 2,558,603 searches. Data last updated February 1, 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

Incheon Intl

Fly to

Heathrow

Route

Depart

Return

Price

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 3/12

4:20 pm-5:30 pm

1 stop34h 10m

London Heathrow

Tue 3/17

9:00 pm-1:15 pm

2 stops31h 15m

$620

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

4:20 pm-5:30 pm

1 stop34h 10m

London Heathrow

Tue 3/10

9:00 pm-11:00 am

2 stops29h 00m

$620

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 6/1

11:00 am-5:55 am

1 stop26h 55m

London Heathrow

Tue 6/9

11:00 am-9:15 pm

1 stop26h 15m

$662

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 2/25

11:00 pm-8:40 pm

1 stop30h 40m

London Heathrow

Sat 3/7

4:15 pm-12:25 pm

1 stop35h 10m

$723

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

12:55 pm-5:30 pm

1 stop37h 35m

London Heathrow

Sat 3/7

9:00 pm-8:40 pm

2 stops38h 40m

$734

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

10:40 am-4:30 pm

Nonstop14h 50m

London Heathrow

Tue 3/10

6:50 pm-4:25 pm

Nonstop12h 35m

$748

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 3/2

10:40 am-4:30 pm

Nonstop14h 50m

London Heathrow

Mon 3/9

6:50 pm-4:25 pm

Nonstop12h 35m

$752

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 3/2

3:40 pm-5:30 pm

2 stops58h 50m

London Heathrow

Mon 3/9

9:00 pm-12:15 pm

2 stops54h 15m

$756

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 2/19

11:00 pm-9:10 am

1 stop19h 10m

London Heathrow

Wed 2/25

10:20 am-12:25 pm

1 stop17h 05m

$790

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 6/3

12:20 pm-6:50 pm

Nonstop14h 30m

London Heathrow

Wed 6/17

1:25 pm-10:30 am

Nonstop13h 05m

$790

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 23 results
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Compare providers for flights from Incheon Intl to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Incheon Intl to Heathrow in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Incheon Intl Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Incheon Intl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Incheon Intl to Heathrow. Price data was last updated on January 30, 2026.

Booking 80 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, March is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of $479). Flying from Incheon Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $760). 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 February 1, 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.

The best insider tips for Incheon Intl Airport to London Heathrow Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Incheon Intl Airport to London Heathrow Airport trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 February 1, 2026.
Read reviews from past customers who have flown Korean Air, Asiana Airlines, and Air China from Incheon Intl Airport to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

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
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

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
501 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

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
7.2
Good
138 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

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!!
Lufthansa
6.8
Okay
7,758 reviews
Korean Air
8.4
Very good
1,188 reviews

Crew

8.7

Food

8.1

Overall

8.4

Boarding

8.5

Comfort

8.3

Entertainment

8.2

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?

    China Eastern, Finnair, and Scandinavian Airlines can get you from Incheon Intl Airport to London Heathrow Airport in just under 24h 25m. Your travel time can differ by up to 9h 45m. The distance between Incheon Intl Airport and London Heathrow Airport is about 5503 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $552, Air China will fly you from Incheon Intl Airport to London Heathrow Airport and back. In addition to Air China, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Asiana Airlines and Lufthansa - these airlines can fly you to your destination from $629 and $754, respectively. Air China is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Air China. According to our data, you can fly for as low as $187. Users have also found prices from $339 and $423 on Asiana Airlines and Qatar Airways, respectively.

  • What are the most reliable airlines from Incheon Intl Airport to London Heathrow 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 Incheon Intl Airport to London Heathrow Airport on time: Korean Air (77%), Virgin Atlantic (67%), Asiana Airlines (48%).

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

    On average you can expect to pay $759 for a flight from Incheon Intl Airport to London Heathrow Airport. The cheapest flight overall is $580 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at $473.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of $479). Flying from Incheon Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $760). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
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Hounslow
Southend-on-Sea
Harrow
Croydon
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Gatwick
Dartford
Dover
Winchester
Orpington
Watford
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Hayes
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Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

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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 2,558,603 searches. Data last updated February 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$552Average$764FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$629Average$872FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$754Average$1,132FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$847Average$1,179FlexibilityNo cancel feeOn-time81%

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