£154 Find Cheap Flights from South Korea 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 to London departing on 1/7. 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

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These are the airlines KAYAK users have selected most often from within our search results for flights to London
These are the airlines KAYAK users have selected most often from within our search results for flights to London
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Cheap Flights from South Korea to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from South Korea 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 South Korea to London

Thu, 3 Jul - Wed, 3 Sep
China Southern Logo
09:25 - 18:05ICN-LHR
16h 40m1 stop
China Southern Logo
22:10 - 15:25LHR-ICN
33h 15m1 stop
£376China Southern
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Thu, 3 Jul - Wed, 3 Sep
China Southern Logo
09:25 - 18:05ICN-LHR
16h 40m1 stop
China Southern Logo
22:10 - 13:55LHR-ICN
31h 45m1 stop
£377China Southern
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Mon, 30 Jun - Mon, 7 Jul
China Eastern Logo
16:20 - 15:00ICN-LGW
30h 40m1 stop
China Eastern Logo
18:05 - 11:55LGW-ICN
33h 50m1 stop
£377China Eastern
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Thu, 26 Jun - Sun, 6 Jul
China Eastern Logo
16:35 - 15:10ICN-LGW
30h 35m1 stop
China Eastern Logo
19:00 - 20:45LGW-ICN
17h 45m1 stop
£380China Eastern
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Thu, 3 Jul - Mon, 1 Sep
 Logo
09:25 - 18:05ICN-LHR
16h 40m1 stop
 Logo
22:00 - 21:30LHR-ICN
39h 30m2 stops
Fri, 27 Jun - Mon, 7 Jul
 Logo
20:50 - 15:00GMP-LGW
26h 10m1 stop
 Logo
18:05 - 19:50LGW-GMP
17h 45m1 stop
Fri, 17 Oct - Sat, 25 Oct
Air China Logo
14:55 - 20:15ICN-LHR
37h 20m1 stop
Air China Logo
22:00 - 12:55LHR-ICN
30h 55m1 stop
£480Air China
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Wed, 22 Oct - Fri, 31 Oct
Lufthansa Logo
11:40 - 20:45ICN-LHR
17h 05m1 stop
Lufthansa Logo
11:10 - 11:15LHR-ICN
15h 05m1 stop
£481Lufthansa
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Wed, 22 Oct - Fri, 31 Oct
Lufthansa Logo
11:40 - 19:40ICN-LHR
16h 00m1 stop
Lufthansa Logo
11:10 - 11:15LHR-ICN
15h 05m1 stop
£484Lufthansa
Find Deal
Fri, 31 Oct - Mon, 3 Nov
Air China Logo
14:55 - 19:40ICN-LHR
37h 45m1 stop
Air China Logo
17:40 - 11:40LHR-ICN
33h 00m1 stop
£494Air China
Find Deal
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KAYAK's insights & trends for flights to London

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

What is the cheapest month to fly to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to London is December, where tickets cost £429 on average for return flights. On the other hand, the most expensive months are April and September, where the average cost of tickets from South Korea is £752 and £737 respectively. For one-way flights, the best month to travel is November with an average price of £349.

What is a good deal for flights to London?

If you’re looking for cheap airfare to London, 25% of our users found tickets to London for the following prices or less: From Incheon Intl Airport £650 return.

How far in advance should I book a flight to London?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Which is the cheapest airport to fly into in London?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in London is London Stansted Airport (STN), with an average flight price of £75.

Good to know - Cheap tickets from South Korea to London

Low seasonApril
High seasonJanuary
Cheapest flight£154
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Seoul Incheon Airport to London Heathrow Airport

FAQs - booking London flights

  • Which London airport is closest to central London?

    8 miles away from London’s city centre, London City is the closest of the 6 major airports in the city. There are 14 miles separating London city centre to London Heathrow Airport, 24 miles to London Gatwick Airport, and 28 miles to London Luton Airport.

  • How much is a flight to London?

    On average, a flight to London costs £717. The cheapest price found on KAYAK in the last 2 weeks cost £514 and departed from Incheon Intl Airport.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Wednesday where round-trip tickets can be as cheap as £617. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £743 on average.

  • How does KAYAK find such low prices on flights 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 to London.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to London?

    The cheapest time of day to fly to London is generally at night, when round-trip flights cost £724 on average. The most expensive time of day to fly to London is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £1,063.

  • How many direct flights to London are there each week?

    Each week there are around 757 direct flights from within South Korea to London. The most common day for departures is Monday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to London

  • Looking for a cheap flight from South Korea to London? 25% of our users found flights on this route for £535 or less one-way and £650 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Top 5 airlines serving from South Korea to London

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 1091 reviews
8.2Entertainment
8.7Crew
8.5Boarding
8.3Comfort
8.1Food
Airline reviews

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

10.0 ExcellentANTHONY JAMES, May 2025ICN - SGN
Read more Korean Air reviews

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.

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

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Best service I’ve ever had Flight attendants are nicely dressed and look very professional

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was amazing. I was not expecting the phenomenal customer service Asiana provides.

It was all perfect and very pleasant for such long flights

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

Everything was perfect. A flight attendant even brought me snacks after I declined food due to my desire to force myself to follow the destination time zone.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

This has been the worst experience I've ever had. We arrived to Ho Chi Minh Airport and were supposed to get our Asiana ticket from the transfer counter as we came with a different airline. However, the staff at the transfer counter were not helpful and kept giving us different information. We were first told by Asiana airlines staff we had to wait 2 hours so they could print out and give us our tickets, then someone else told us we had to wait 3hrs, someone told us "I don't know, just go sit and wait and we will tell you later." This was at a place in the Ho Chi Minh airport that had no coffee or food shops, nothing, just immigration (to enter Vietnam with a Vietnam Visa) and security (to transfer into the gates) but we needed our printed boarding pass to go through. It wasn't until we demanded to speak to a supervisor as our flight time was 1hr away because they kept telling us "there's alot of time left for your international flight, we will get your tickets later" we still had to wait around 20minutes for the "Supervisor" to give us our tickets. I would NOT recommend Asiana Airlines, especially if going thru Ho Chi Minh Airport as they are not helpful. (We almost missed our flight, due to their lazyness and incompetence of printing our tickets) I would suggest Asiana Airlines to have a Machine in the transfer area so passengers can easily print out their boarding passes themselves and save some money by not hiring incompetent staff that can't do a simple task such as printing a boarding pass.

Food no variations only beef of chicken no veggie meals

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

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

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

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

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

Excellent experience however older aeroplanes used by China Eastern Airlines.

The crew were excellent, service amazing, blankets and pillow good, cabin temperature perfect, the flight on time, food was unusual selection however plentiful, price for tickets unbeatable through Kayak. Older aeroplanes used by China Eastern was the only down side.

Delay in off-boarding due to customs at SFO... pilot announcement should have come earlier so passengers don't clog aisles.

Better good than most, if not all European airlines. If you’re stuck in an economy seat anyways, China Eastern is a good choice because of shorter flight time, being able to overfly Russia

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!

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.

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

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

Food is delicious I’ve tried Thai green chicken curry and it was perfect!

The experience was great. A330 needs an upgrade between RDU and FRA and vice-versa.

I've yet to be on an Air Dolomiti flight that hasn't been delayed, but other than that I've really enjoyed flying with them

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

Because of the fog at the Frankfurt airport, our flight was delayed leaving Budapest. We only had 20 minutes to get from A23 to C13. This was quite a walk for this not-so-young anymore lady--even with the help of moving sidewalks! We also had to go through passport control and then security. Germany is extra thorough, even doing pat-downs of all passengers. We got to our gate and I knew I had been randomly selected for extra security scanning because of the "SSSS" code on my boarding pass so I wasn't surprised when he escorted me back to security to be searched some more. The boarding gate gentleman assured me that they would hold the plane. The ladies in security rushed through the scanning process as fast as they could and we were able to make our flight to Orlando. The actual flight was smooth and comfortable. The food and service were excellent. The flight crew were friendly and efficient.

Flight was an hour+ late leaving Munich. We even missed a rescheduled flight from Chicago to Kansas City. Lufthansa was responsive in providing motel and meals.

Did not fly HOU to SAT as flight was cancelled.

It was a very full flight, makes it harder for flight crew.

Seats are too close together, there is not enough legroom. Food was pretty bad. TV didn’t work for more than half the flight which was annoying. Crew was annoyed that I complained about the TV they shut down the system and it restarted but then froze again. Asked them again but they were annoyed only to shut it down again it worked for two hours then froze again.

Try to be on time and landing more smoothly. Thanks

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Everything you need to know for your flight to London

Cabin class types available on flights to London

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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