£203 Find Cheap Flights from South Korea to London – Compare and Save

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 21/10. 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.
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Flight Deals

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

Tue, 8 Sep - Sun, 13 Sep
China Eastern Logo
12:35 - 15:00
PUS
-
LGW
34h 25m
1 stop
China Eastern Logo
11:35 - 11:35
LGW
-
PUS
16h 00m
1 stop
£476China Eastern
Wed, 9 Sep - Wed, 16 Sep
Air China Logo
12:45 - 18:05
PUS
-
LGW
37h 20m
1 stop
Air China Logo
20:25 - 11:45
LGW
-
PUS
31h 20m
1 stop
£486Air China
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
12:35 - 12:55
PUS
-
LGW
32h 20m
2 stops
Multiple Airlines Logo
21:30 - 16:50
LGW
-
PUS
35h 20m
2 stops
£486Multiple Airlines
Fri, 27 Nov - Mon, 30 Nov
China Eastern Logo
17:50 - 06:30
PUS
-
LGW
21h 40m
1 stop
China Eastern Logo
10:30 - 11:35
LGW
-
PUS
16h 05m
1 stop
£489China Eastern
Wed, 9 Sep - Wed, 16 Sep
Air China Logo
12:45 - 18:05
PUS
-
LGW
37h 20m
1 stop
Air China Logo
20:25 - 11:45
LGW
-
PUS
31h 20m
1 stop
£492Air China
Sat, 5 Sep - Sat, 12 Sep
Air China Logo
12:45 - 06:35
PUS
-
LGW
25h 50m
1 stop
Air China Logo
12:35 - 11:45
LGW
-
PUS
15h 10m
1 stop
£496Air China
Mon, 26 Oct - Fri, 30 Oct
Virgin Atlantic Logo
10:40 - 16:30
ICN
-
LHR
14h 50mdirect
Virgin Atlantic Logo
14:10 - 11:30
LHR
-
ICN
12h 20mdirect
£609Virgin Atlantic
Sat, 26 Sep - Wed, 30 Sep
Virgin Atlantic Logo
12:25 - 18:50
ICN
-
LHR
14h 25mdirect
Virgin Atlantic Logo
19:35 - 16:15
LHR
-
ICN
12h 40mdirect
£716Virgin Atlantic
Fri, 23 Oct - Tue, 27 Oct
Asiana Airlines Logo
07:50 - 14:20
ICN
-
LHR
14h 30mdirect
Asiana Airlines Logo
16:35 - 14:10
LHR
-
ICN
12h 35mdirect
£783Asiana Airlines
Fri, 23 Oct - Sun, 25 Oct
Asiana Airlines Logo
07:50 - 14:20
ICN
-
LHR
14h 30mdirect
Asiana Airlines Logo
16:35 - 14:10
LHR
-
ICN
12h 35mdirect
£802Asiana Airlines
Booking Insights

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 flight to London?

These are the best return prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to London was found on the route from Busan, at £476 return. The most popular connection is from Incheon to London, while KAYAK users have found return deals for as low as £560 in the last 5 days.

What is the cheapest day to fly to London?

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

Based on KAYAK data, the cheapest day to fly to London is Thursday where round-trip tickets can be as cheap as £570. On the other hand, the most expensive day to fly is Tuesday, where round-trip prices are £710 on average.

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 round-trip 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 November, where tickets cost £509 on average for return flights. On the other hand, the most expensive months are October and September, where the average cost of tickets from South Korea is £898 and £754 respectively. For one-way flights, the best month to travel is June with an average price of £220.

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

The average price for all round-trip flights to London depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to London is generally in the morning, when round-trip flights cost £661 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 £701.

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 £714 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 4 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 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 £84.

Good to know - Cheap tickets from South Korea to London

Low season

November

Cheapest flight

£203
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (49% more expensive on average)
Flight from Busan to London Heathrow Airport

FAQs - booking London flights

  • What is the cheapest flight to London?

    In the last 5 days, the cheapest flight deal to London was found on the route from Busan, at £476 return. The most popular connection is from Incheon to London, while KAYAK users have found return deals for as low as £560 in the last 5 days.

  • 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 £593. The cheapest price found on KAYAK in the last 2 weeks cost £242 and departed from Incheon Intl Airport.

  • 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.

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 £432 or less one-way and £714 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Reviews of the top 5 airlines flying 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.
8.1
Asiana AirlinesOverall score based on 555 reviews
8.5Crew
7.6Entertainment
8.3Boarding
8.0Food
8.0Comfort
Airline reviews

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

10.0 ExcellentAnonymous, Apr 2026
ICN - MNL
Read more Asiana Airlines reviews

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Kayak uses scammer sites to steal money from their victims.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

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 am thankful that I was able to fly using Asiana

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!

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.

Coming back to America was a peaceful flight everyone and everything was perfect

The crew was amazing and really nice. The OS on the entertainment system could use an update, though. It felt old and outdated but had anything you'd need to keep busy. I usually never use it anyways, but that did stand out.

Food has been disappointing in both legs of flight to india

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

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

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.

Great crew - old style upper class seats on the older fleet now feels dated

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Weren’t even given earphones to use the entertainment system

Very friendly and attentive flight attendants, good food service. Seat was comfortable. However, the in flight electronics were poor. The screen froze repeatedly; the controller died; the headphones are a hit or miss; the wifi wasn't usable. Very scarce communication before the flight (no email reminder). Almost impossible to understand in-flight communications (audio was very poor).

The meals were not the greatest and lacking of appetite but everything else was spot on

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

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).

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

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

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

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.

The flight was delayed. The staff made us wait in the room that is too small and it was crowded and with no seats available for waiting. They did not tell us why the delay occurred.

While boarding at PVG, there was a ticket checking by the gate, then there was another ticket checking right at the bottom of the escalator, which created quite a dangerous congestion. Don't understand why the duplication?

The ticket was last minute buy so no concerns about the pricing this time, but the crew in general could have been more accommodating, helpful.

Excellent experience however older aeroplanes used by China Eastern Airlines.

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

Reasonable. What they offer during the flight is not great, but the crew is polite and try to compensate it.

For the price we paid, we had a really good flight. The seats and bed (business class) was extremely comfortable. I have no complaints. The crew were very attentive and helpful. They spoke English and there were no misunderstanding although their English wasn’t perfect or fluent. You will never go hungry as there was ample food and drinks but their food for mediocre. The entertainment was limited to older movies and the wifi didn’t allow you to access some Social media. Apart from the above, it was a very pleasant flight. Would highly recommend them.

Good airline for the price. The Air stewardess are great, nothing is to much trouble. Will use again.

We were cutting it close on our connecting flight and notified all staff at departing gate and flight attendants. From the start, we were told to check in with the international transfer desk by everyone, except for one lady who wanted to argue the time difference that was already taken into account. We also asked if we could try to exit the plane first (our family of 4 and 8 others on the same connecting flight). They just told us to check in with international transfers. We landed and had very little time to make our next flight. We were not offered any assistance or communication to the receiving gate. We ran all the way to the international transfers gate only to be turned away. I think we could have made it if we were allowed to exit and a call was made to other check in counter. After that we spent 6 grueling hours with our kids trying to rebook a flight. No food of any type of compensation was offered besides a dirty hotel room. The ladies with China Eastern at the Shanghai International counter were rude an unhelpful. We were directed to 3 different counters and waited before they said they forgot about a hotel. It was a long, miserable day. I believe this could have all been avoided.

Couldn’t fly since they wouldn’t issue a boarding ticket. Something to do with not taking the departing flight since it was cancelled due to weather. No notice or anything about the trip being invalid. The app made it seem like I was all good for it. Never trusting travel agency

Flights were delayed and due to a checked hand luggage bag by an overzealous gate agent in Berlin I missed my ground connection costing me another £80. Food was cold and bland, I honestly expect better from a national carrier operating out of one of their major hubs.

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.

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

Missed our flight to London and we were put on coach seats to Munich.

Seats were terribly uncomfortable! Couldn’t sleep! I paid for good seats when scheduled with Lufthansa, got crappy mid-section seats on Air Canada!

The seats are much too narrow and the arm rests are hard and awkwardly high, resulting in shoulder cramps. I am an average sized person ( definitely not overweight). The seats are a similar size to car seats with the added discomfort of incorporating hard plastic arm rests, that force average height individuals (I'm 5 ft 7 (f)) to hold their arms uncomfortably for several hours. The seats are much too close to the ones in front and behind making it extremely difficult to allow fellow passengers to get out, especially when the seat in front is declined. The leg room also necessitates knees banging into passengers backs for the entire flight. This used to be a quality airline who now offer mediocre service for premium cost, coupled with charging exorbitant prices for basic needs, like a seat, or luggage. Blatant and unabashed gouging of clients.

Try to humanize onboarding and take AI out. It's embarrassing and useless

I ended up buying (for $340) "extra space" seats because I my flying partner was given a STY boarding pass, leading me to conclude that she was on standby and that we had to buy seats on the flight. I later learned that the flight was not sold out and that we could have gotten on as usual. To be honest, I felt swindled.

I'm Canadian. I have the unfortunate experience of pretty not having the choice to fly with them. THEY ARE TERRIBLE.

The process overall was pretty seamless, and the crew were very friendly (especially Michael). Considering we booked expecting Lufthansa and the flight was operated by United, it was still a very good service and journey overall. The in-flight entertainment was great, with lots of quality options. One slight negative was that I had selected a vegetarian meal prior to flying, but received a vegan one. I think there should be more dietary options as it meant I missed out on some food that I would have preferred (and it seemed like the standard meals and snacks had a vegetarian option anyway). There was also a group of people who were moving around a lot and being generally disruptive at the quietest part of the flight, when the lights were off and most people were sleeping. I would have appreciated staff stepping in to encourage them to be mindful of others). Towards the end of the flight (which was very early in the morning in both time zones), the lights suddenly came on and breakfast was served. In my opinion, this was too early, and everyone was rudely awoken from sleep. After breakfast was cleared away, the lights went off again for about 45 minutes, allowing people to sleep some more. Then the lights came on again for landing. It seems like if they had served breakfast later, the lights on-lights off-lights on shenanigans could have been avoided, and people could have slept longer (and staff could have rested longer too).

Travelling to a place near London?

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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.