LHR - ICN

$450 Find Cheap Flights from London to Incheon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Incheon departing on 5/18. 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 Incheon Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Incheon, 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 London to Incheon, 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
$670
Typical prices: $1,045-$636
Air China
Sat 5/2Mon 5/11
LHR - ICN • 1 stop
Cheapest non-stop
$812
Typical prices: $1,207-$837
Asiana Airlines
Mon 6/1Thu 6/11
LHR - ICN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Asiana's Economy Smartium offers extra legroom.
Heathrow's security queues can be long, arrive early.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $670 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Asiana Airlines, Korean Air and Virgin Atlantic. Average duration is 12h 41m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $511 (round-trip)
Shortest trip • 14h 20m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 6% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
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 Incheon!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to Incheon (LHR-ICN)

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

Sat, May 2 - Mon, May 11
Air China Logo
10:00 pm - 12:55 pm
LHR
-
ICN
30h 55m
1 stop
Air China Logo
3:45 pm - 5:40 pm
ICN
-
LHR
33h 55m
1 stop
$670Air China
Wed, May 27 - Thu, Jun 4
Air India Logo
1:15 pm - 10:40 am
LHR
-
ICN
37h 25m
1 stop
Air India Logo
12:20 pm - 7:00 pm
ICN
-
LHR
38h 40m
1 stop
$674Air India
Sat, Oct 3 - Sun, Oct 25
Shenzhen Airlines Logo
10:05 pm - 2:15 pm
LHR
-
ICN
32h 10m
1 stop
Shenzhen Airlines Logo
4:45 pm - 7:10 pm
ICN
-
LHR
35h 25m
1 stop
$676Shenzhen Airlines
Sat, Oct 3 - Sun, Oct 25
Shenzhen Airlines Logo
10:05 pm - 4:45 pm
LHR
-
ICN
34h 40m
1 stop
Shenzhen Airlines Logo
2:55 pm - 7:10 pm
ICN
-
LHR
37h 15m
1 stop
$699Shenzhen Airlines
Thu, Jun 25 - Thu, Jul 9
Air India Logo
9:45 pm - 10:40 am
LHR
-
ICN
28h 55m
1 stop
Air India Logo
12:20 pm - 7:00 pm
ICN
-
LHR
38h 40m
1 stop
$701Air India
Tue, Apr 28 - Wed, May 6
Air India Logo
1:40 pm - 10:40 am
LHR
-
ICN
37h 00m
1 stop
Air India Logo
12:20 pm - 7:00 pm
ICN
-
LHR
38h 40m
1 stop
$708Air India
Mon, Jun 22 - Fri, Jul 3
Air India Logo
1:15 pm - 10:40 am
LHR
-
ICN
37h 25m
1 stop
Air India Logo
12:20 pm - 7:00 pm
ICN
-
LHR
38h 40m
1 stop
$709Air India
Wed, May 27 - Thu, Jun 4
Air India Logo
1:15 pm - 10:40 am
LHR
-
ICN
37h 25m
1 stop
Air India Logo
12:20 pm - 7:00 pm
ICN
-
LHR
38h 40m
1 stop
$716Air India
Tue, Apr 28 - Thu, May 7
China Eastern Logo
9:20 pm - 3:10 pm
LHR
-
ICN
33h 50m
1 stop
China Eastern Logo
4:15 pm - 6:40 pm
ICN
-
LHR
34h 25m
1 stop
$718China Eastern
Wed, Sep 9 - Sun, Oct 4
Air India Logo
1:15 pm - 10:40 am
LHR
-
ICN
37h 25m
1 stop
Air India Logo
12:20 pm - 7:00 pm
ICN
-
LHR
38h 40m
1 stop
$719Air India
Booking Insights

KAYAK's insights & trends for London to Incheon flights

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

How much is a round-trip flight from London Heathrow Airport to Incheon Intl 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 London Heathrow Airport to Incheon Intl Airport departing in May.

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

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

If you are looking for a flight deal from London to Incheon, look for departures on Wednesdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Incheon, Saturday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Incheon Intl 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 London Heathrow Airport to Incheon Intl Airport is January, where tickets cost $624 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $1,089 and $1,065 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Incheon Intl 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 London Heathrow Airport to Incheon Intl Airport, you should book around 4 weeks before departure, which saves you about 6% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from London to Incheon

 
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.
Our travel experts
John Walton

John Walton

Expert on Asiana Airlines

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.

Robert Schrader

Robert Schrader

Expert on Korean Air and ICN

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.

Duncan Madden

Duncan Madden

Expert on LHR

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.

Good to know

Low seasonJanuary
Cheapest flight$450
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from London to Incheon

When to book flights from London to Incheon

Are your dates flexible? Find out the best times to travel from London to Incheon 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 London to Incheon flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Incheon Intl Airport was $450 for a one-way ticket and $670 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in London and on arrival in Incheon.

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

    Asiana Airlines, and Delta offer inflight Wi-Fi service on the London to Incheon flight route.

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

    The Boeing 777-300ER is the aircraft model that flies most regularly on the London to Incheon flight route.

  • Which airline alliances offer flights from London to Incheon?

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

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

    There are nonstop flights from London to Incheon on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from London to Incheon are Korean Air and Asiana Airlines. With an average price for the route of $1,200 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 $1,302 and an overall rating of 8.0.

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

    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 London to Incheon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Incheon from London 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 London to Incheon?

    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 Incheon with an airline and back to London with another airline. Booking your flights between London and ICN 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 London to Incheon?

    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 Incheon from London 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 London Heathrow Airport to Incheon Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $598 or less one-way and $1,052 or less round-trip.

Prefer to fly direct from London to Incheon?

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

Direct departures

London Heathrow to Incheon Intl

Monday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Tuesday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Wednesday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Thursday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Friday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Saturday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Sunday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

See more direct flights

Direct returns

Incheon Intl to London Heathrow

Monday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Tuesday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Wednesday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Thursday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Friday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Saturday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

Sunday

Asiana Airlines,Korean Air,Virgin Atlantic

Asiana Airlines,Korean Air, +1 more

See more direct flights

Reviews of the top 4 airlines serving from London to Incheon

 
See real verified KAYAK customer reviews for airlines flying from London to Incheon. 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 London to Incheon? 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 1208 reviews
8.3Comfort
8.1Food
8.5Boarding
8.2Entertainment
8.7Crew
Airline reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

10.0 ExcellentOmer, Mar 2026
MNL - ICN
Read more Korean Air reviews

Always on time and flight crew were great. Boarding in Manila was a bit chaotic and disorganized compared to Incheon.

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak along with airfare assay are attempting to steal my money. Charges are being pressed.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

I am thankful that I was able to fly using Asiana

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

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!

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

The plane was late (as was my flight out from Birmingham the day before)

Nice people, efficient and professional, high quality, and well-run. Everything you want in a flight!

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

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

When I booked the flight with Cheap Flights I actually booked in Business Class. When I got the confirmation it showed that my flights had been purchased by Cheap Flights in Economy Class with an Upgrade to Business Class. At first I was surprised and then the problems started. If you are not a seasoned Traveller you would not have been able to handle the issues this created. 1: the lay over time for the connecting flight in Frankfurt was 45min, which is extremely short and even the slightest dealy would have resulted in me missing the next flight. 2: the checked baggage allowance in Buisness class is 2 bags/ ea, 32Kg., however, my ticket being booked in Economy with an upgrade to Business only allowed for 1 bag/ 23 Kg. when I did the online check in my Boarding Pass showed a checked in Luggage allowance of 1 bag/ 32 Kg. which was very confusing. I called the Airline and asked what my checked in Luggage allowance actually is and was told 1 bag/ 23Kg. Since I have a frequent Flyer Status with the airline my baggage allowance increased by 1 bag / 23Kg. When I arrived at the airport I asked to be booked on an earlier flight, in order to avoid the stress and possible missed connection and I was lucky that this was possible. If this had not been possible, I would have missed my connection due to weather and even I am not quite sure, if and what the consequences of my cheap ticket would have been. My point being: if all of the above would have happened to an unsuspecting/unseasoned traveller, this trip would have ended in a disaster. The issue with the pricing is that the alledged money my airline received and what I actually paid to Cheap Flights shows a $1,000 difference. In conclusion, I would stay away from Cheap Flights if you want a hassle free experience!

No entertainment since it was a 3 hr flight. Good leg room for economy.

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

Information on your arrival and departure airports