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Cheap Flights from South Korea to London

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from South Korea to London

Fri, 20 Nov - Fri, 27 Nov
China Eastern Logo
17:50 - 06:30PUS  Busan Gimhae-LGW London Gatwick
21h 40m1 stop Shanghai Pu Dong
China Eastern Logo
10:30 - 11:35LGW  London Gatwick-PUS Busan Gimhae
16h 05m1 stop Shanghai Pu Dong
£403China Eastern
Fri, 27 Nov - Thu, 3 Dec
China Eastern Logo
17:50 - 06:30PUS  Busan Gimhae-LGW London Gatwick
21h 40m1 stop Shanghai Pu Dong
China Eastern Logo
10:30 - 11:35LGW  London Gatwick-PUS Busan Gimhae
16h 05m1 stop Shanghai Pu Dong
£417China Eastern
Tue, 15 Dec - Fri, 22 Jan
Air China Logo
11:10 - 07:10ICN  Incheon Intl-LGW London Gatwick
29h 00m2 stops Beijing Capital Shanghai Hongqiao Intl
Air China Logo
11:35 - 20:55LGW  London Gatwick-ICN Incheon Intl
24h 20m1 stop Beijing Capital
£513Air China
Tue, 15 Dec - Mon, 25 Jan
Air China Logo
11:10 - 07:10ICN  Incheon Intl-LGW London Gatwick
29h 00m2 stops Beijing Capital Shanghai Hongqiao Intl
Air China Logo
11:35 - 21:55LGW  London Gatwick-ICN Incheon Intl
25h 20m1 stop Beijing Capital
£513Air China
Thu, 12 Nov - Sun, 15 Nov
Virgin Atlantic Logo
13:25 - 18:55ICN  Incheon Intl-LHR London Heathrow
14h 30mdirect
Virgin Atlantic Logo
14:30 - 11:40LHR  London Heathrow-ICN Incheon Intl
12h 10mdirect
£654Virgin Atlantic
Thu, 12 Nov - Thu, 19 Nov
Virgin Atlantic Logo
13:25 - 18:55ICN  Incheon Intl-LHR London Heathrow
14h 30mdirect
Virgin Atlantic Logo
14:30 - 11:40LHR  London Heathrow-ICN Incheon Intl
12h 10mdirect
£657Virgin Atlantic
Thu, 12 Nov - Mon, 16 Nov
Asiana Airlines Logo
09:40 - 15:35ICN  Incheon Intl-LHR London Heathrow
14h 55mdirect
Asiana Airlines Logo
17:40 - 15:10LHR  London Heathrow-ICN Incheon Intl
12h 30mdirect
£690Asiana Airlines
Tue, 24 Nov - Tue, 1 Dec
Asiana Airlines Logo
09:40 - 15:35ICN  Incheon Intl-LHR London Heathrow
14h 55mdirect
Asiana Airlines Logo
17:40 - 15:10LHR  London Heathrow-ICN Incheon Intl
12h 30mdirect
£697Asiana Airlines
Tue, 1 Dec - Tue, 8 Dec
Korean Air Logo
10:40 - 16:30ICN  Incheon Intl-LHR London Heathrow
14h 50mdirect
Korean Air Logo
18:50 - 16:25LHR  London Heathrow-ICN Incheon Intl
12h 35mdirect
£770Korean Air
Wed, 30 Dec - Thu, 7 Jan
Korean Air Logo
10:40 - 16:30ICN  Incheon Intl-LHR London Heathrow
14h 50mdirect
Korean Air Logo
18:50 - 16:25LHR  London Heathrow-ICN Incheon Intl
12h 35mdirect
£801Korean Air
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 day to fly to London?

Based on KAYAK data, the cheapest day to fly to London is Monday where round-trip tickets can be as cheap as £599. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are £765 on average.

What is the cheapest month to fly to London?

The cheapest month for flights to London is March, where tickets cost £521 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 £774 and £761 respectively. For one-way flights, the best month to travel is June with an average price of £244.

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

The cheapest time of day to fly to London is generally in the afternoon, when round-trip flights cost £698 on average. The most expensive time of day to fly to London is generally in the morning, which is peak travel time and where the average cost of a ticket is £707.

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 £765 return.

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

To get a below average price, you should book around 4 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 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 £90.

Good to know - Cheap tickets from South Korea to London

Low season

November

Cheapest flight

£175
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 4% 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 £623. The cheapest price found on KAYAK in the last 2 weeks cost £376 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 £392 or less one-way and £765 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 4 airlines flying from South Korea to London

 
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 569 reviews
8.0Comfort
8.3Boarding
8.0Food
7.6Entertainment
8.4Crew
Airline reviews

Just good - short flight. Not much happens. Left on time and arrived on time.

8.0 ExcellentJeff, Aug 2026
Read more Asiana Airlines reviews

Just good - short flight. Not much happens. Left on time and arrived on time.

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.

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.

The flight itself was ok but delayed take off meant that service was also delayed once in the air and it was a long time before the lights in the cabin were turned off. The food was pretty poor, which was disappointing for Virgin. Particularly breakfast which was a dry bagel with a pot of cream cheese. Economy sears were not comfortable despite us handing 3 seats between the two of us, I was unable to get comfortable and sleep. The entertainment was brilliant with a great selection and a very welcome addition was free high speed internet access for flying club members meaning I could stream video whilst in the air.

Food was okay. Seats were a bit cramped. In flight entertainment headphone socket didn't work on my seat. Wifi was great, so I was able to stream on my iPad

Selection of movies didn't include recent box office hits. Food was average not great. English sparkling wine is not drinkable. Otherwise, everything was great.

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.

Crew is polite, but artificially polite. You can see and feel it. Food could be better.

Broken business class seat which could not convert into a bed and had to switch to a narrower aisle seat to sleep

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.

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.

The boarding procedure with Boarding Category Group 5 clients is just undignified.

Proximity of the the gate to the lounge could have been better but overall a nice experience. The lounge was exceptional. Getting from the Schengen side to the international side was also pain free. Boarding the plane, service on board , disembarking at Heathrow and quick delivery of bags all made for a good overall experience.

Good flight but there was no entertainment. I wouldn’t have complained but you asked.

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

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