ICN - LHR

$336 Find Cheap Flights from Incheon to London

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 to London departing on 11/20. 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

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 to London (ICN-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Incheon to London 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 round-trip flight deals from Incheon to London

Mon, Jan 12 - Sat, Jan 17
Scandinavian Airlines Logo
11:45 pm - 9:20 amICN-LHR
18h 35m1 stop
Scandinavian Airlines Logo
3:35 pm - 7:00 pmLHR-ICN
42h 25m2 stops
$697Scandinavian Airlines
Find Deal
Mon, Nov 17 - Mon, Dec 1
Scandinavian Airlines Logo
11:45 pm - 4:00 pmICN-LHR
25h 15m1 stop
Scandinavian Airlines Logo
7:50 pm - 7:00 pmLHR-ICN
38h 10m2 stops
$698Scandinavian Airlines
Find Deal
Sat, Oct 25 - Sat, Nov 1
 Logo
12:10 am - 4:25 pmICN-LHR
24h 15m1 stop
 Logo
9:00 pm - 11:15 amLHR-ICN
29h 15m2 stops
Sat, Oct 11 - Mon, Oct 20
 Logo
12:10 am - 4:35 pmICN-LHR
24h 25m1 stop
 Logo
10:00 pm - 8:10 pmLHR-ICN
38h 10m2 stops
Mon, Jan 12 - Sat, Jan 17
Scandinavian Airlines Logo
11:45 pm - 2:35 pmICN-LHR
23h 50m2 stops
Scandinavian Airlines Logo
3:35 pm - 7:00 pmLHR-ICN
42h 25m2 stops
$701Scandinavian Airlines
Find Deal
Mon, Sep 29 - Sun, Oct 5
China Eastern Logo
12:55 pm - 6:40 pmICN-LHR
37h 45m1 stop
China Eastern Logo
9:20 pm - 3:25 pmLHR-ICN
34h 05m1 stop
$708China Eastern
Find Deal
Tue, Mar 3 - Thu, Mar 5
Lufthansa Logo
1:05 pm - 10:20 pmICN-LHR
18h 15m1 stop
Lufthansa Logo
10:30 am - 10:50 amLHR-ICN
15h 20m1 stop
$709Lufthansa
Find Deal
Wed, Jan 14 - Fri, Jan 23
Lufthansa Logo
1:30 pm - 9:00 pmICN-LHR
16h 30m1 stop
Lufthansa Logo
6:35 am - 10:50 amLHR-ICN
19h 15m2 stops
$710Lufthansa
Find Deal
Sat, Dec 20 - Fri, Jan 2
KLM Logo
11:05 pm - 7:40 amICN-LHR
17h 35m1 stop
KLM Logo
5:05 pm - 4:55 pmLHR-ICN
14h 50m1 stop
$726KLM
Find Deal
Sat, Dec 20 - Fri, Jan 2
KLM Logo
11:05 pm - 7:40 amICN-LHR
17h 35m1 stop
KLM Logo
5:05 pm - 4:55 pmLHR-ICN
14h 50m1 stop
$750KLM
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Asiana's Economy Smartium offers extra legroom.
Expect long lines at Incheon's security checks.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Scandinavian Airlines
Cheapest • from $697 (round-trip)
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 travelers who book at least 3 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 23% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$697
Overall average: $866
Scandinavian Airlines
Mon 1/12Sat 1/17
ICN - LHR • 1 stop
Cheapest non-stop
$749
Typical prices: $938-1384
Asiana Airlines
Mon 1/26Wed 2/11
ICN - LHR • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Expert advice

Expert advice for your flight from Incheon to London

 
Snippets provided in this section are AI-generated based on a summarization 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

Asiana's Economy Smartium offers 4 inches extra legroom, priority boarding, and lounge access.


Asiana's A350 Wi-Fi is available for purchase; ensure flight mode to avoid roaming charges.

Korean Air

Korean Air's Prestige Class offers direct aisle access with Apex Suite on select aircraft.


Korean Air's First Class features Cosmo Suite with doors on 747-8 and 777-300ER.

Read more about Korean Airby Robert Schrader
Airports
ICN

Security lines at ICN can be long, so arrive early. Allow at least an hour from check-in to passport control.

Read more about ICNby Robert Schrader
LHR

For a cost-effective ride to central London, the Elizabeth Line offers a good balance of price and travel time.

Read more about LHRby Duncan Madden
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
Duncan Madden

Duncan Madden

Expert on LHR

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Booking Insights

KAYAK's insights & trends for Incheon to London flights

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

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

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 on a Monday and more expensive on a Friday. On your return trip to Incheon, you should consider flying back on a Wednesday, and avoid Thursdays 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 November, where tickets cost $658 (return) on average. On the other hand, the most expensive months are October and September, where the average cost of round-trip tickets is $1,119 and $1,037 respectively.

Can I save money by flying with a layover from Incheon Intl Airport to London Heathrow Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $976 on average.

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 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$336
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Incheon to London

When to book flights from Incheon to London

Are your dates flexible? Find out the best times to travel from Incheon to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Incheon to London 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 $336 for a one-way ticket and $697 for a round-trip.

  • Do I need a passport to fly between Incheon and London?

    A passport is required to fly from Incheon to London.

  • Which airports will I be using when flying from Incheon to London?

    On your way to London, you’ll fly out from Incheon Intl. You’ll be landing at London Heathrow.

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

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

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

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

  • Which airline alliances offer flights from Incheon to London?

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

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

    There are nonstop flights from Incheon to London 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 $1,098 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 $973 and an overall rating of 8.2.

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

    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 Incheon to London.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Incheon with another airline. Booking your flights between Incheon and LHR can sometimes prove cheaper using this method.

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

    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 from Incheon 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? 25% of our users found flights on this route for $660 or less one-way and $920 or less round-trip.

Prefer to fly direct from Incheon to London?

 
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 5 airlines serving from Incheon to London

 
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 to London? 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 1139 reviews
8.1Food
8.3Comfort
8.2Entertainment
8.7Crew
8.5Boarding
Airline reviews

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.

10.0 ExcellentAnonymous, Aug 2025ICN - ATL
Read more Korean Air reviews

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.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

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.

It was worst flight ever of 26h. Poor service and seating. Flight from Abu Dhabi to Islamabad service and seating was worst ever. No tv extra.

i was not allowed to use lounge, although i had business class ticket, and nobody told me my ticket was not eligible to use lounge

I had a terrible experience checking in at the airport for my flight. I booked my ticket initially through Kayak while it was promoted as a ticket that offers a carry on and 2 suit cases. (I have a screen shot as a proof of it) I selected it to buy three tickets and paid online. Couple of minutes later airfare assist which is the OTA offering the ticket called me saying My card declined. So I used a different card that went through. I was surprised that they increased the price ticket by a $167. They said the ticket no longer exists and because my card declined I had to buy a new one. So I did. The day my family and I were traveling I could not check in and when I went to the airport I was shocked to be told my ticket had no bags allowed and must pay $200 per bag for three people 6 bags mean I have to pay $1200. I called the travel agency as I feel I was scammed the confirmation didn’t say anything about the bags and they never told me the new ticket doesn’t not include any bag so they changed it after I selected it on your app without informing me. Very sneaky. The travel agency said they will reimburse me only for one bag person. Which means I still paid $600 I still feel very disappointed to pay such an expense. I have always used Kayak to buy my flight tickets and telling everyone how good your rates and app are however after this I feel I was mislead and paid more for something I should not have to. You allowing such an agency on your platform will surely hurt your reputation and level of integrity. I have all the proofs from the screen shot to the confirmation email from them, the or email offering to reimburse o e bag per person and the $1200 bag fees receipts that I paid on the desk. I must be refund the full amount and I look forward to your response.

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Took a long time for boarding. The flight was comfortable.

Extremely bad food, they never gave our bags in time, the online check-in did not let us check in because we had Indian OCI not sure why we were given the option to check in then, because we couldn’t check in online we had to go in person and we were not able to change our seats and sit with our family

The flight take time was changed 23 times. The system kept sending messages it will be earlier at 4am and eventually the flight was at 9am I didn’t sleep all night because of that

This flight was a dreamliner so I think the space was ok for the legs, but the option for food was again limited and the crew was same.

The seat was like there is no leg space....there were no proper option for food in the airline. It seemed like the airline was at brink of bankruptcy. The crew was helpful except for a few.

Bad. Flight was very uncomfortable with narrow and shallow seats, very little food and water. I will not fly etihad again.

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

A bit more space? Not practical, I know. I felt squished in but part of that could have been the man sitting next to me.

If the plain wait for the passenger it should wait for the baggage!!

The plane was late to Frankfurt and I almost missed my connection and my checkt in bag didn’t catch the second flight! Poor

The booking I made 2 months in advance got changed the week before with another flight and had to pay more for seats and luggage. Not to mention hours and hours on hold to make sure my flight is still booked.

Everything well done and customer oriented There entertainment system is difficult to navigate

They gave us chocolates twice (for whoever would like an extra chocolate - kids did!). I asked for an extra water, and I was given one. Crew was very friendly!

The flight was delayed by an hour. Made the connection uncomfortably tight.

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

The boarding process was really slow. The air crew was amazing. Also the food options and the entertainment on board.

Happy and nice crew and the atmosphere is very easy and calm. I got a wonderful travel with UA this time

Everything you need to know for your flight from Incheon to London

Information on your arrival and departure airports

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