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$189+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
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Cheapflights Tip: The best prices from Incheon Intl to London Heathrow are usually found in March or November, booked 80 days in advance, depart on a Tuesday or Monday and return on a Sunday

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 diciembre 16, 2025.

This Gotogate deal was found by Cheapflights users on 12/15. 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.
mié. 12/2412:55 pmICN - LHR
1 stop37h 35mMultiple Airlines
lun. 12/299:00 pmLHR - ICN
2 stops38h 35mMultiple Airlines
Deal found 12/15$618
This Etihad Airways deal was found by Cheapflights users on 12/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/175:50 pmICN - LHR
1 stop21h 50mEtihad Airways
jue. 1/88:55 pmLHR - ICN
1 stop16h 00mEtihad Airways
Deal found 12/16$626
This Etihad Airways deal was found by Cheapflights users on 12/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/185:50 pmICN - LHR
1 stop33h 20mEtihad Airways
jue. 1/88:55 pmLHR - ICN
1 stop16h 00mEtihad Airways
Deal found 12/16$629
This Gotogate deal was found by Cheapflights users on 12/16. 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.
jue. 12/185:50 pmICN - LHR
1 stop33h 20mMultiple Airlines
vie. 1/309:00 pmLHR - ICN
2 stops29h 15mMultiple Airlines
Deal found 12/16$632
This Etihad Airways deal was found by Cheapflights users on 12/16. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/205:50 pmICN - LHR
1 stop21h 50mEtihad Airways
mié. 12/318:50 amLHR - ICN
1 stop16h 55mEtihad Airways
Deal found 12/16$636
This KLM deal was found by Cheapflights users on 12/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/2311:05 pmICN - LHR
1 stop18h 55mMultiple Airlines
lun. 12/298:55 amLHR - ICN
1 stop16h 35mMultiple Airlines
Deal found 12/14$657
This Gotogate deal was found by Cheapflights users on 12/16. 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.
jue. 12/185:50 pmICN - LHR
1 stop33h 20mMultiple Airlines
jue. 1/19:35 pmLHR - ICN
1 stop30h 20mMultiple Airlines
Deal found 12/16$672
This Lufthansa deal was found by Cheapflights users on 12/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:05 pmICN - LHR
1 stop16h 45mLufthansa
sáb. 1/177:40 amLHR - ICN
1 stop18h 35mLufthansa
Deal found 12/16$680
This Lufthansa deal was found by Cheapflights users on 12/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/291:30 pmICN - LHR
1 stop18h 25mLufthansa
mié. 1/77:40 amLHR - ICN
2 stops18h 10mLufthansa
Deal found 12/14$696
This Lufthansa deal was found by Cheapflights users on 12/14. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:05 pmICN - LHR
2 stops28h 00mLufthansa
vie. 1/1611:10 amLHR - ICN
1 stop15h 05mLufthansa
Deal found 12/14$711
This deal was found by Cheapflights users on 12/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/231:25 pmICN - LHR
1 stop17h 35mLOT
mar. 1/136:30 amLHR - ICN
1 stop15h 40mLOT
Deal found 12/14$727

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 diciembre 16, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$558
(China Southern)

One-way from

$188
(Air China)

Popular in

October

Cheapest in

March

Average price

$790

Good round-trip deal

$670 or less

Good one-way deal

$346 or less
Provider with most accurate pricing for Incheon Intl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Incheon Intl-London Heathrow flights.
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From Incheon Intl to London Heathrow
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One-way flight from Incheon Intl to London Heathrow
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Highest demand for flights based on searches. 10% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in December 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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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 diciembre 16, 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

mié. 2/18

12:10 am-3:25 pm

1 stop24h 15m

London Heathrow

mié. 2/25

10:25 am-8:55 pm

1 stop25h 30m

$633

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

mié. 2/4

11:45 pm-6:30 pm

1 stop27h 45m

London Heathrow

mié. 2/11

7:50 pm-7:00 pm

2 stops38h 10m

$670

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

vie. 3/6

11:45 pm-9:20 am

1 stop18h 35m

London Heathrow

mié. 3/11

7:50 pm-7:00 pm

2 stops38h 10m

$670

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

jue. 5/21

11:45 pm-2:35 pm

2 stops22h 50m

London Heathrow

dom. 5/31

7:30 pm-6:15 pm

1 stop14h 45m

$712

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

lun. 2/9

11:45 pm-4:00 pm

1 stop25h 15m

London Heathrow

jue. 2/19

9:55 am-7:00 pm

2 stops24h 05m

$716

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

mié. 1/14

11:45 pm-9:20 am

1 stop18h 35m

London Heathrow

mié. 2/4

7:50 pm-7:00 pm

2 stops38h 10m

$763

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

vie. 1/16

11:45 pm-4:00 pm

1 stop25h 15m

London Heathrow

dom. 1/18

6:40 pm-7:00 pm

1 stop15h 20m

$774

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

vie. 1/16

11:45 pm-9:20 am

1 stop18h 35m

London Heathrow

mar. 1/20

3:35 pm-7:00 pm

2 stops18h 25m

$777

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

vie. 2/27

1:05 pm-8:05 am

2 stops28h 00m

London Heathrow

mié. 3/4

7:40 am-10:50 am

2 stops18h 10m

$782

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

mar. 1/27

11:50 am-7:20 am

2 stops28h 30m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 21 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 December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
GotogatePrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust 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 Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Incheon Intl Airport-London Heathrow Airport flight deals on Cheapflights vs. Gotogate >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 Gotogate the most. Gotogate 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 December 12, 2025.

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 $480). Flying from Incheon Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $754). 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 diciembre 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Incheon Intl Airport to London Heathrow Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

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
Airports
ICN

Plan for extra time at security as lines can be long, sometimes up to 20 minutes, especially during busy periods.

Read more about ICNBy Gabriel Leigh
LHR

Take the Heathrow Express for the fastest route to central London, arriving at Paddington Station in about 15 minutes.

Read more about LHRBy Ramsey Qubein
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel Leigh

Gabriel Leigh

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

Ramsey Qubein

Ramsey Qubein

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 diciembre 16, 2025.
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
1,186 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
493 reviews
Korean Air
8.4
Very good
1,186 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
127 reviews
Korean Air
8.4
Very good
1,186 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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
7,632 reviews
Korean Air
8.4
Very good
1,186 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Boarding

8.5

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?

    Malaysia Airlines and Scandinavian Airlines can get you from Incheon Intl Airport to London Heathrow Airport in just under 24h 15m. Your travel time can differ by up to 3h 30m. 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 36% 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: Virgin Atlantic (67%), Korean Air (67%), Asiana Airlines (48%).

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

    On average you can expect to pay $583 for a flight from Incheon Intl Airport to London Heathrow Airport. The cheapest flight overall is $339 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at $615.

  • 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 $480). Flying from Incheon Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $754). 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?

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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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$552Average$764FlexibilityNo cancel feeOn-time67%
Asiana AirlinesCheapest$629Average$853FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$754Average$1,132FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$847Average$1,103FlexibilityNo cancel feeOn-time81%

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