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$300+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — LHR
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
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 58 days in advance, depart on a Monday or Tuesday 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 August 1, 2025.

Round-trip from

$682
(Lufthansa)

One-way from

$316
(Etihad Airways)

Popular in

September

Cheapest in

November

Average price

$965

Good round-trip deal

$751 or less

Good one-way deal

$717 or less
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. 13% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 1, 2025.

This Lufthansa deal was found by Cheapflights users on 7/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:05 pmICN - LHR
1 stop18h 15mLufthansa
Sun 12/148:45 amLHR - ICN
1 stop17h 30mLufthansa
Deal found 7/29$684
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/186:25 pmICN - LHR
1 stop32h 15mMultiple Airlines
Tue 8/2610:40 pmLHR - ICN
1 stop15h 05mMultiple Airlines
Deal found 7/29$685
This Booking.com deal was found by Cheapflights users on 7/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:45 pmICN - LHR
1 stop24h 15mScandinavian Airlines
Fri 9/265:00 pmLHR - ICN
1 stop17h 15mScandinavian Airlines
Deal found 7/31$687
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/128:55 amICN - LHR
1 stop17h 45mChina Eastern
Tue 8/199:20 pmLHR - ICN
1 stop15h 25mChina Eastern
Deal found 7/29$688
This China Southern deal was found by Cheapflights users on 7/31. 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 Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/229:25 amICN - LHR
1 stop16h 40mChina Southern
Fri 8/2910:10 pmLHR - ICN
1 stop33h 15mChina Southern
Deal found 7/31$694

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 August 1, 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

Sat 1/17

1:05 pm-8:50 pm

1 stop16h 45m

London Heathrow

Sat 1/24

7:40 am-11:15 am

1 stop18h 35m

$682

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 9/15

11:45 pm-4:00 pm

1 stop24h 15m

London Heathrow

Fri 9/26

5:00 pm-6:15 pm

1 stop17h 15m

$687

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 8/22

9:25 am-6:05 pm

1 stop16h 40m

London Heathrow

Fri 8/29

10:10 pm-3:25 pm

1 stop33h 15m

$694

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 10/6

1:35 am-3:15 pm

1 stop21h 40m

London Heathrow

Tue 10/21

10:40 pm-9:45 pm

1 stop15h 05m

$695

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 9/15

1:35 am-6:45 pm

1 stop25h 10m

$300

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 8/19

4:45 pm-7:00 pm

1 stop34h 15m

$318

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 8/19

8:55 am-6:40 pm

1 stop17h 45m

$324

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 9/5

2:55 pm-8:15 pm

1 stop37h 20m

$331

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 9/13

6:05 pm-5:50 pm

1 stop31h 45m

$349

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 9/7

12:45 pm-7:30 pm

3 stops38h 45m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 17 results
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The best insider tips for Incheon Intl Airport to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

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 July 25, 2025.

Booking 58 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 $661). Flying from Incheon Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 August 1, 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 34% on your trip compared to booking a flight at noon.

Weekly flight availability from Incheon Intl Airport to London Heathrow Airport

Explore weekly flight availability from Incheon Intl to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 1, 2025.

The most flights from ICN to LHR are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip 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 August 1, 2025.
Read reviews from past customers who have flown EVA Air, Emirates, and China Southern 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.
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very good
1,220 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Emirates
8.1
Very good
3,300 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Southern
7.6
Good
104 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Vietnam Airlines
7.5
Good
197 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
SWISS
7.5
Good
1,686 reviews
EVA Air
8.4
Very good
1,220 reviews

Overall

8.4

Food

8.1

Boarding

8.4

Crew

8.6

Entertainment

8.0

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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?

    Currently priced at $682, Lufthansa will fly you from Incheon Intl Airport to London Heathrow Airport and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Scandinavian Airlines and China Southern - these airlines can fly you to your destination from $687 and $694, respectively. Lufthansa is priced at 20% 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 Etihad Airways. According to our data, you can fly for as low as $316. Users have also found prices from $318 and $324 on China Southern and China Eastern, 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 (83%), Virgin Atlantic (77%), Asiana Airlines (65%).

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

    On average you can expect to pay $3,450 for a flight from Incheon Intl Airport to London Heathrow Airport. The cheapest flight overall is $710 while the most popular route, (Incheon Intl - London Heathrow) is currently priced at $668.

  • 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, November is the cheapest month in which you can book a flight from Incheon Intl Airport to London Heathrow Airport (average of $661). Flying from Incheon Intl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
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Chichester
Swindon

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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 2,558,603 searches. Data last updated August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$550Average$741FlexibilityNo cancel feeOn-time67%
Etihad AirwaysCheapest$672Average$806FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$682Average$948FlexibilityNo cancel feeOn-time76%
Asiana AirlinesCheapest$822Average$975FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$847Average$1,216FlexibilityNo cancel feeOn-time81%

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