ICN - LON

£125 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 21/1. 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

 
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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£345
China Eastern
Thu 22/1Wed 28/1
ICN - LGW • 1 stop
Cheapest direct flights
£550
Typical prices: £612-£779
Virgin Atlantic
Thu 26/2Wed 11/3
ICN - LHR • Direct
Our travellers' 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
China Eastern
Cheapest • from £392 (return)
Asiana Airlines
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ICN
-
LHR
Cheapest
ICN
-
LHR
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 31% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Incheon to London (ICN-LON)

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

Thu, 22 Jan - Wed, 28 Jan
China Eastern Logo
16:20 - 06:30
ICN
-
LGW
23h 10m
1 stop
China Eastern Logo
10:30 - 15:05
LGW
-
ICN
19h 35m
1 stop
£345China Eastern
Sun, 25 Jan - Sat, 31 Jan
China Eastern Logo
14:30 - 14:00
ICN
-
LGW
32h 30m
1 stop
China Eastern Logo
17:00 - 11:55
LGW
-
ICN
33h 55m
1 stop
£346China Eastern
Wed, 28 Jan - Fri, 30 Jan
China Eastern Logo
16:10 - 14:00
ICN
-
LGW
30h 50m
1 stop
China Eastern Logo
10:30 - 11:55
LGW
-
ICN
16h 25m
1 stop
£348China Eastern
Mon, 26 Jan - Wed, 28 Jan
China Eastern Logo
16:20 - 06:30
ICN
-
LGW
23h 10m
1 stop
China Eastern Logo
10:30 - 15:05
LGW
-
ICN
19h 35m
1 stop
£350China Eastern
Thu, 29 Jan - Mon, 2 Feb
Multiple Airlines Logo
13:10 - 05:35
ICN
-
LGW
25h 25m
1 stop
Multiple Airlines Logo
10:30 - 20:45
LGW
-
ICN
25h 15m
1 stop
£354Multiple Airlines
Tue, 27 Jan - Mon, 2 Feb
China Southern Logo
10:55 - 18:35
ICN
-
LHR
40h 40m
1 stop
China Southern Logo
21:30 - 22:15
LHR
-
ICN
15h 45m
1 stop
£373China Southern
Tue, 3 Mar - Mon, 9 Mar
China Southern Logo
09:25 - 18:35
ICN
-
LHR
18h 10m
1 stop
China Southern Logo
22:00 - 15:15
LHR
-
ICN
32h 15m
1 stop
£381China Southern
Sun, 1 Mar - Tue, 10 Mar
Multiple Airlines Logo
18:25 - 11:30
ICN
-
STN
26h 05m
2 stops
Multiple Airlines Logo
20:25 - 15:05
STN
-
ICN
33h 40m
2 stops
£381Multiple Airlines
Thu, 22 Jan - Mon, 26 Jan
KLM Logo
23:05 - 07:15
ICN
-
LCY
17h 10m
1 stop
KLM Logo
17:05 - 16:55
LCY
-
ICN
14h 50m
1 stop
£465KLM
Tue, 31 Mar - Tue, 14 Apr
KLM Logo
22:25 - 17:20
ICN
-
LCY
26h 55m
1 stop
KLM Logo
08:25 - 16:25
LCY
-
ICN
24h 00m
1 stop
£531KLM
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 is the cheapest Incheon Intl Airport to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Incheon Intl Airport to London costs £498 on the route between Incheon Intl Airport (ICN) and London Heathrow Airport (LHR). It is also the most popular route.

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 clicked on KAYAK for each day over the last 12 months.

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

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

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, 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 is May, where tickets cost £415 (return) on average. On the other hand, the most expensive months are October and September, where the average cost of round-trip tickets is £821 and £722 respectively.

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

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, 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, you should book around 3 weeks before departure, which saves you about 14% 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
Korean Air

Korean Air's Prestige Class offers direct aisle access and high privacy partitions on select aircraft.


Enjoy a multi-course dinner and on-demand snacks in Korean Air's Prestige Class on long-haul flights.

Asiana Airlines

Asiana's A350 offers Economy Smartium with 4 inches extra legroom and priority boarding.


Asiana's Business Suite on A380 offers a first-class experience at a business-class price.

Airports
ICN

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

LHR

Take the Heathrow Express for a quick 15-minute ride to London Paddington. Book tickets in advance for the best rates.

Our travel experts
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
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
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 Incheon to London

Low seasonNovember
Cheapest flight£125
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Seoul Incheon Airport to London Heathrow Airport

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 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.

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

Insights shared by verified travellers who flew the route from Incheon to London 
AdamFlew with Virgin Atlantic
ICN
-
LHR
Jan 2025
It's a big airport so just make sure you pay attention to the gate. Read the signs carefully
Verified travelerFlew with Korean Air
ICN
-
LHR
Dec 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?

    In the last 3 days, the lowest price for a flight from Incheon Intl Airport to London was £125 for a one-way ticket and £350 for a return.

  • 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 in one of London’s 4 airports: London City, London Gatwick, London Heathrow, or London Stansted.

  • 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 direct flights from Incheon to London on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Incheon to London are Asiana Airlines and China Southern. With an average price for the route of £784 and an overall rating of 8.2, Asiana Airlines is the most popular choice. China Southern is also a great choice for the route, with an average price of £392 and an overall rating of 7.3.

  • 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 travellers 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 return ticket. You could then fly to London with an airline and back to Incheon with another airline.

  • 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

  • Looking for a cheap flight from London to Incheon? 25% of our users found flights on this route for £470 or less one-way and £498 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.
Find which airlines fly direct from Incheon Intl Airport to London, which days they fly and book direct flights.

Direct departures

Incheon Intl to London

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

London 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

Reviews of the top 4 airlines flying 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.
8.2
Asiana AirlinesOverall score based on 500 reviews
8.0Food
8.3Boarding
8.5Crew
8.0Comfort
7.7Entertainment
Airline reviews

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!

10.0 ExcellentAnonymous, Nov 2025
CJU - GMP
Read more Asiana Airlines reviews

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!

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.

Love flying Asiana. Been using it for over a decade now.

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.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

CTU-KMG-CNX with 1.5 hr connection at KMG. Doable but just barely bc immigration exit from China is at the last flight leg, here: KMG to CNX. We hauled out of the domestic terminal to reenter at the international departures (luggage checked thru to CNX thankfully). Immigration had only two agents, even though KMG gets a HUGE number of foreigners. It took forever for such a shot line. Then security also took a while, so I just just made the connection. Recommend if you exit China with domestic international transfer, plan for 2+ hrs to avoid a heart attack. Airline personnel don’t suffer if you miss the flight, you do. Plan accordingly.

China Eastern as a member of Sky Alliance airlines should have the same standards overall of their partners, Besides the seats comforts everything else is bellow the standard for a business class travelers. A BIG ISSUE FOR NON-CHINESE PASSENGERS IS THE ABILITY TO CHECK IN ONLINE, by making so difficult or almost impossible there is no chance to get a seat assignment ahead of time then go to the airport and get what is left. THIS IS NOT a SKY TEAM modality.

China Eastern as a member of Sky Alliance airlines should have the same standards overall of their partners, Besides the seats comforts everything else is bellow the standard for a business class travelers.

2 parts to the journey. First leg covered in a newer plane with decent staff + POOR FOOD QUALITY but the second half didn’t leave a positive impression at all as the plane itself was an older built and the crew didn’t serve properly. Language is an issue with China Eastern flights as always, but unmotivated crew just makes it even bad.

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

it was great the cabin crew were polite and detail oriented.

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

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.

Food was terrible. They ran out of options and gave me a bland undercooked pasta and veggies. Only middle seat was available to select although I paid extra. Baggage delayed at destination. Flight attendants not really helpful.

False advertising: An empty seat between 2 economy seats, then classified as “Business” is not. Thin cushion, economy-like leg room. From Lufthansa, a globally recognized and renowned carrier. Must do better.

Crew was very courteous, friendly and professional. Caring and attentive.

We flew first class - the screens are outdated and very small. Even on highest brightness level is was hard to recognize anything. Food was on average, nothing special. Champagne served was the same other airlines serving in Business Class.

Safety which is #1 was great. Food choices was not always great and often ran out of choice meat before getting to back of economy. Had one staff member who was just rude otherwise everyone was quite pleasant especially with the job they have to do!

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The plane delay due to a poor judgement of the pilot. It was the only flight that got delay due to fog.

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

Information on your arrival and departure airports