ICN - LHR

$261 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 1/30. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$549
Typical prices: $751-$1,144
Air China
Mon 1/19Thu 1/29
ICN - LHR • 1 stop
Cheapest non-stop
$668
Typical prices: $906-$1,026
Asiana Airlines
Tue 2/3Sat 2/14
ICN - LHR • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Asiana's Economy Smartium offers extra legroom.
Expect long lines at Incheon's security checks.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Scandinavian Airlines
Cheapest • from $667 (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 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 26% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Expert advice
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 19 - Thu, Jan 29
Air China Logo
2:55 pm - 8:15 pm
ICN
-
LHR
38h 20m1 stop
Air China Logo
5:40 pm - 4:35 pm
LHR
-
ICN
13h 55m1 stop
$549Air China
Tue, Dec 23 - Sat, Jan 3
Multiple Airlines Logo
12:55 pm - 5:30 pm
ICN
-
LHR
37h 35m1 stop
Multiple Airlines Logo
9:35 pm - 12:55 pm
LHR
-
ICN
30h 20m1 stop
$558Multiple Airlines
Tue, Dec 23 - Sat, Jan 3
Multiple Airlines Logo
4:10 pm - 5:30 pm
ICN
-
LHR
34h 20m1 stop
Multiple Airlines Logo
9:35 pm - 12:55 pm
LHR
-
ICN
30h 20m1 stop
$559Multiple Airlines
Tue, Dec 23 - Mon, Dec 29
China Eastern Logo
8:55 am - 5:30 pm
ICN
-
LHR
17h 35m1 stop
China Eastern Logo
9:00 pm - 8:45 pm
LHR
-
ICN
14h 45m1 stop
$564China Eastern
Tue, May 19 - Thu, May 28
Air China Logo
1:05 pm - 8:30 pm
ICN
-
LHR
15h 25m1 stop
Air China Logo
8:25 pm - 11:35 am
LHR
-
ICN
31h 10m1 stop
$567Air China
Tue, Dec 23 - Mon, Dec 29
Multiple Airlines Logo
4:10 pm - 5:30 pm
ICN
-
LHR
34h 20m1 stop
Multiple Airlines Logo
9:00 pm - 8:35 pm
LHR
-
ICN
38h 35m2 stops
$574Multiple Airlines
Sun, Mar 22 - Thu, Apr 16
Air China Logo
2:40 pm - 5:50 pm
ICN
-
LHR
36h 10m1 stop
Air China Logo
8:25 pm - 12:35 pm
LHR
-
ICN
32h 10m1 stop
$578Air China
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
4:20 pm - 5:30 pm
ICN
-
LHR
34h 10m1 stop
Multiple Airlines Logo
9:40 pm - 10:20 pm
LHR
-
ICN
15h 40m1 stop
$579Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
2:30 pm - 5:30 pm
ICN
-
LHR
36h 00m1 stop
Multiple Airlines Logo
9:40 pm - 10:20 pm
LHR
-
ICN
15h 40m1 stop
$581Multiple Airlines
Thu, May 21 - Sun, May 31
China Southern Logo
9:25 am - 6:05 pm
ICN
-
LHR
16h 40m1 stop
China Southern Logo
10:10 pm - 3:25 pm
LHR
-
ICN
33h 15m1 stop
$591China Southern
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.

How much is a round-trip flight from Incheon Intl Airport to London Heathrow Airport?

This analysis is based on the cheapest round-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 January.

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 Sunday. 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 March, where tickets cost $643 (return) on average. On the other hand, the most expensive months are October and September, where the average cost of round-trip tickets is $1,219 and $1,023 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.

No, with an average price for the route of $803, prices are generally cheapest when you fly direct.

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 12 weeks before departure.

Expert advice

Expert advice for your flight from Incheon to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

Airports
ICN

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

LHR

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

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

Good to know

Low seasonNovember
Cheapest flight$160
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 11% 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.

Flights from Incheon to London: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Incheon to London 
AdamFlew with Virgin AtlanticJan 2025
It's a big airport so just make sure you pay attention to the gate. Read the signs carefully
Verified travelerFlew with Korean AirDec 2023
Drink lots of water. Sleep to the destination time, not the original time and clean up after yourselves - the flight staff are already working hard, they should not have to clean up after adults.

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 $160 for a one-way ticket and $549 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 Boeing 777-300ER 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 $1,103 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 $853 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 $346 or less one-way and $672 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 4 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 1184 reviews
8.5Boarding
8.2Entertainment
8.7Crew
8.3Comfort
8.1Food
Airline reviews

Great service and comfort level. You can have more of vegetarian food options.

10.0 ExcellentAnonymous, Nov 2025
ICN - SFO
Read more Korean Air reviews

Great service and comfort level. You can have more of vegetarian food options.

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.

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.

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

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

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.

Worst than I expected, crew was not attentive, meal was as disgusting , they didn’t even drink selections as they would to other passengers. I felt discriminated

cannot get seat information for LAX to IAH when check in in XI,AN

UA is ok. But check in was a very bad experience

I hate that you cannot check in online and when you are at the airport, there aren't any aisle seats left. Also, they could work a little on subtitles for their movies (not everyone is a native English speaker).

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!

The staff were so very cheerful and happy! It really made my day to encounter such chipper folks throughout my journey

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

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.

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

Information on your arrival and departure airports