ICN - LHR

£158 Find Cheap Flights from Seoul Incheon Airport to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon Intl to Heathrow departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to London, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Incheon Intl to Heathrow (ICN-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Incheon Intl to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Incheon Intl to Heathrow

ven, 12 dic - sab, 20 dic
Air China Logo
11:10 - 17:50ICN-LHR
15h 40m1 stop
Air China Logo
21:35 - 12:55LHR-ICN
30h 20m1 stop
£435Air China
Find Deal
dom, 7 dic - sab, 20 dic
Air China Logo
11:10 - 17:50ICN-LHR
15h 40m1 stop
Air China Logo
21:35 - 12:55LHR-ICN
30h 20m1 stop
£436Air China
Find Deal
dom, 28 dic - mer, 7 gen
Multiple Airlines Logo
14:40 - 15:55ICN-LHR
34h 15m1 stop
Multiple Airlines Logo
21:10 - 15:45LHR-ICN
33h 35m1 stop
£440Multiple Airlines
Find Deal
lun, 29 dic - ven, 9 gen
Multiple Airlines Logo
14:55 - 20:15ICN-LHR
38h 20m1 stop
Multiple Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
£441Multiple Airlines
Find Deal
ven, 27 feb - mar, 10 mar
China Southern Logo
09:25 - 17:55ICN-LHR
17h 30m1 stop
China Southern Logo
21:30 - 22:15LHR-ICN
15h 45m1 stop
£444China Southern
Find Deal
sab, 20 dic - mer, 31 dic
Shenzhen Airlines Logo
16:45 - 19:10ICN-LHR
35h 25m1 stop
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
£451Shenzhen Airlines
Find Deal
ven, 28 nov - ven, 5 dic
China Eastern Logo
18:25 - 17:30ICN-LHR
32h 05m1 stop
China Eastern Logo
21:00 - 20:45LHR-ICN
14h 45m1 stop
£452China Eastern
Find Deal
sab, 20 dic - ven, 9 gen
Shenzhen Airlines Logo
14:55 - 19:10ICN-LHR
37h 15m1 stop
Shenzhen Airlines Logo
21:10 - 13:55LHR-ICN
31h 45m1 stop
£453Shenzhen Airlines
Find Deal
lun, 12 gen - gio, 15 gen
China Eastern Logo
18:25 - 17:30ICN-LHR
32h 05m1 stop
China Eastern Logo
21:00 - 15:05LHR-ICN
33h 05m1 stop
£456China Eastern
Find Deal
lun, 15 dic - dom, 4 gen
China Southern Logo
09:25 - 18:35ICN-LHR
18h 10m1 stop
China Southern Logo
21:30 - 22:15LHR-ICN
15h 45m1 stop
£457China Southern
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Asiana's A350 offers 4 inches extra legroom in Economy.
The Heathrow Express reaches Paddington in 15 minutes.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Air China
Cheapest • from £435 (return)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 21% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
£435
Typical prices: £478-£661
Air China
ven 12/12sab 20/12
ICN - LHR • 1 stop
Cheapest direct flights
£519
Typical prices: £646-£740
Asiana Airlines
ven 21/11gio 27/11
ICN - LHR • Direct
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Booking Insights

KAYAK's insights & trends for Incheon Intl to Heathrow flights

Get data-powered insights and trends into flights from Incheon Intl to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Incheon Intl Airport to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Incheon Intl Airport to London Heathrow Airport departing in December.

What’s the cheapest day of the week to fly from Seoul Incheon Airport to London Heathrow Airport?

The average price of all round-trip flights from Incheon Intl Airport to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to London Heathrow Airport on a Thursday and more expensive on a Saturday. On your return trip to Seoul Incheon Airport, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

What is the cheapest month to fly from Incheon Intl Airport to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Incheon Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Incheon Intl Airport to London Heathrow Airport is March, where tickets cost £511 (return) on average. On the other hand, the most expensive months are October and September, where the average cost of round-trip tickets is £893 and £781 respectively.

How far in advance should I book a flight from Incheon Intl Airport to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Incheon Intl Airport to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Incheon Intl Airport to London Heathrow Airport, you should book around 3 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Expert advice

Expert advice for your flight from Incheon Intl to Heathrow

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Asiana Airlines

Economy seats on the A350 offer 4 inches extra legroom and priority boarding with Economy Smartium.


Asiana's A350s provide inflight Wi-Fi for a fee; ensure your phone is in flight mode to avoid charges.

Korean Air

Prestige Class on the 747-8 offers direct aisle access and high privacy partitions for exclusivity.


First Class on 747-8 features Cosmo Suite with fully-closing doors for enhanced privacy.

Read more about Korean Airby Robert Schrader
Airports
ICN

For a smooth departure from ICN, allow at least an hour for check-in, security, and passport control due to busy lines.

Read more about ICNby Robert Schrader
LHR

The Heathrow Express takes you to London Paddington in just 15 minutes. Buy tickets in advance for the best rate.

Read more about LHRby Kirstie Pickering
Our travel experts
John Walton

John Walton

Expert on Asiana Airlines

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Robert Schrader

Robert Schrader

Expert on Korean Air and ICN

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site, Leave Your Daily Hell, in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Kirstie Pickering

Kirstie Pickering

Expert on LHR

Kirstie Pickering

Kirstie Pickering

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Read more

Good to know - Cheap tickets from Seoul Incheon Airport to London Heathrow Airport

Low seasonMarch
Cheapest flight£158
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Seoul Incheon Airport to London Heathrow Airport

When to book flights from Incheon Intl to Heathrow

Are your dates flexible? Find out the best times to travel from Incheon Intl to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seoul Incheon Airport to London Heathrow Airport flights

  • What is the cheapest flight from Incheon Intl Airport to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Incheon Intl Airport to London Heathrow Airport was £158 for a one-way ticket and £435 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Seoul Incheon Airport to London Heathrow Airport?

    Only Asiana Airlines offers inflight Wi-Fi service on the Seoul Incheon Airport to London Heathrow Airport flight route.

  • Which aircraft models fly most regularly from Seoul Incheon Airport to London Heathrow Airport?

    The Airbus A350-900 is the aircraft model that flies most regularly on the Seoul Incheon Airport to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Seoul Incheon Airport to London Heathrow Airport?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Seoul Incheon Airport and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Seoul Incheon Airport to London Heathrow Airport?

    There are direct flights from Seoul Incheon Airport to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Incheon to London, Korean Air or Asiana Airlines?

    The two airlines most popular with KAYAK users for flights from Incheon to London are Korean Air and Asiana Airlines. With an average price for the route of £833 and an overall rating of 8.4, Korean Air is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of £751 and an overall rating of 8.2.

  • How does KAYAK find such low prices on flights from Seoul Incheon Airport to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul Incheon Airport to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul Incheon Airport to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Seoul Incheon Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul Incheon Airport to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Seoul Incheon Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul Incheon Airport to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Seoul Incheon Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Incheon Intl Airport to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Seoul Incheon Airport? 25% of our users found flights on this route for £287 or less one-way and £510 or less round-trip.

Prefer to fly direct from Seoul Incheon Airport to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Incheon Intl to London Heathrow.
Find which airlines fly direct from Incheon Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Incheon Intl to London Heathrow

Monday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Tuesday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Wednesday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Thursday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Friday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Saturday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Sunday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

See more direct flights

Direct returns

London Heathrow to Incheon Intl

Monday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Tuesday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Wednesday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Thursday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Friday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Saturday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

Sunday

Asiana Airlines, Korean Air

Asiana Airlines, Korean Air

See more direct flights

Reviews of the top 3 airlines flying from Incheon Intl to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Incheon to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Incheon Intl to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1155 reviews
8.5Boarding
8.2Entertainment
8.7Crew
8.1Food
8.3Comfort
Airline reviews

It’s great, long flight and arrive safe at destination

10.0 ExcellentAye, Oct 2025ICN - MSP
Read more Korean Air reviews

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

Coming back to America was a peaceful flight everyone and everything was perfect

I had a bad experience coming from America to Thailand. On my connecting flight my check in suitcase was not put on the departing aircraft, I received my suitcase 24 hours after arriving in Bangkok and when I open my luggage my hand swelled up. The next morning when I put on an outfit from my suitcase my face swelled up and became numb. My entire vacation was ruined it seems that some kind of chemical was sprayed into suitcase and ruined my clothes and got me sick. The staff at my hotel called the airline and spoke to someone and they told me to file a complaint and gave my a website to do so. I did not file a complaint I felt like it would have fell on death ears. I had to throw away my brand new vacation clothes and suitcase and I had the worst vacation ever due to this happening to me.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

Small plane with only two lavatories at the back. You must have a good plan to use it before or after the meal, if you make a bad decision, you will end up with standing in front of the toilet for a while till the food carts empty. The good thing is even there’s a slightly delayed, the plane is still arriving on time which is superb!!

The only personel that smiled at all were the flights attendants. Desk agents, lounge people none of them had a smile or even a hello. They were like dealing with dead fish. Again flight attendants were good. All other personnel looked like they didn’t want to be there or help.

good flight. food is only so so. I actually did not eat the snack. it does not look too good on the passenger next to me.

Food no variations only beef of chicken no veggie meals

Super surprised with the entire experience. Business class is incredible. Flight attendants around the world could learn customer service from these people. Simply fabulous experience all the way around.

Pillow and blanket are dirty. My son got multiple bites during the flight

Flight was on time. My group paid for seat’s so that us four can be seated next to each other. We all got separated. We all got middle seats, which made it more difficult to be able to get up and stretch or use the restroom. We tried talking to the employees at China Eastern and they were of no help. We will not be taking this flight or recommend this route to others in the future. Also I will be contacting customer service on how I can get our money back for paying for assigned seats.

China eastern was fantastic. I had read so many bad reviews that had made me nervous. However, I found that the flight attendant’s, and customer service check in etc. etc. was excellent. I had no problems. I would fly with them again!

Excellent! I had read some negative reviews but I found out that it was not all was not true! The staff was courteous and helpful. The flight take off and landing was nice & easy. The food was good! I asked for a second and I got it easily and without an attitude! All was wonderful!

Excellent experience however older aeroplanes used by China Eastern Airlines.

Everything you need to know for your flight from Incheon Intl to Heathrow

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