£170 Find Cheap Flights from South Korea to London – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

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

Sun, 11 Oct - Sun, 18 Oct
Multiple Airlines Logo
12:55 - 14:50ICN  Incheon Intl-STN London Stansted
33h 55m2 stops Shanghai Pu Dong Milan Malpensa
Multiple Airlines Logo
07:25 - 19:35STN  London Stansted-ICN Incheon Intl
28h 10m2 stops Milan Malpensa Xi'an Xianyang
£368Multiple Airlines
Wed, 14 Oct - Sun, 18 Oct
Multiple Airlines Logo
16:15 - 18:30ICN  Incheon Intl-STN London Stansted
34h 15m2 stops Shanghai Pu Dong Milan Malpensa
Multiple Airlines Logo
07:25 - 19:35STN  London Stansted-ICN Incheon Intl
28h 10m2 stops Milan Malpensa Xi'an Xianyang
£373Multiple Airlines
Mon, 12 Oct - Fri, 16 Oct
Multiple Airlines Logo
16:15 - 16:55ICN  Incheon Intl-STN London Stansted
32h 40m2 stops Shanghai Pu Dong Milan Malpensa
Multiple Airlines Logo
07:15 - 19:35STN  London Stansted-ICN Incheon Intl
28h 20m2 stops Milan Malpensa Xi'an Xianyang
£378Multiple Airlines
Mon, 26 Oct - Tue, 10 Nov
Air China Logo
13:10 - 15:55ICN  Incheon Intl-LHR London Heathrow
35h 45m1 stop Beijing Capital
Air China Logo
21:30 - 12:55LHR  London Heathrow-ICN Incheon Intl
30h 25m1 stop Chengdu Tianfu Intl
£445Air China
Mon, 26 Oct - Mon, 2 Nov
Air China Logo
13:10 - 15:55ICN  Incheon Intl-LHR London Heathrow
35h 45m1 stop Beijing Capital
Air China Logo
17:45 - 21:55LHR  London Heathrow-ICN Incheon Intl
19h 10m1 stop Beijing Capital
£465Air China
Mon, 26 Oct - Sat, 31 Oct
Air China Logo
13:10 - 15:55ICN  Incheon Intl-LHR London Heathrow
35h 45m1 stop Beijing Capital
Air China Logo
21:30 - 12:55LHR  London Heathrow-ICN Incheon Intl
30h 25m1 stop Chengdu Tianfu Intl
£465Air China
Tue, 3 Nov - Tue, 10 Nov
Virgin Atlantic Logo
13:20 - 18:50ICN  Incheon Intl-LHR London Heathrow
14h 30mdirect
Virgin Atlantic Logo
14:10 - 11:30LHR  London Heathrow-ICN Incheon Intl
12h 20mdirect
£701Virgin Atlantic
Thu, 5 Nov - Wed, 18 Nov
Virgin Atlantic Logo
13:25 - 18:55ICN  Incheon Intl-LHR London Heathrow
14h 30mdirect
Virgin Atlantic Logo
14:15 - 11:35LHR  London Heathrow-ICN Incheon Intl
12h 20mdirect
£702Virgin Atlantic
Thu, 5 Nov - Wed, 18 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
£719Asiana Airlines
Wed, 17 Feb - Wed, 17 Mar
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
£733Asiana 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?

In the last 5 days, the cheapest flight deal to London was found on the route from Incheon, at £365 return. The most popular connection is from Seoul to London, while KAYAK users have found return deals for as low as £365 in the last 5 days.

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 £592. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are £715 on average.

What is the cheapest month to fly to London?

The cheapest month for flights to London is November, where tickets cost £498 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 £802 and £719 respectively. For one-way flights, the best month to travel is June with an average price of £216.

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

The cheapest time of day to fly to London is generally in the morning, when round-trip flights cost £665 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 £690.

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 £767 return.

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

To get a below average price, you should book around 5 weeks before departure, which saves you about 5% 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 £139.

Good to know - Cheap tickets from South Korea to London

Low season

November

Cheapest flight

£170
Best time to beat the crowds (16% 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

  • What is the cheapest flight to London?

    In the last 5 days, the cheapest flight deal to London was found on the route from Incheon, at £365 return. The most popular connection is from Seoul to London, while KAYAK users have found return deals for as low as £365 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 £705. The cheapest price found on KAYAK in the last 2 weeks cost £365 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 £434 or less one-way and £767 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 561 reviews
8.0Comfort
7.6Entertainment
8.4Crew
8.3Boarding
8.0Food
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.

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.

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.

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?

Book flights to London if you plan to visit one of these locations
Gatwick
Eastbourne
Milton Keynes
Hounslow
Luton
Southend-on-Sea
Newport
Folkestone
Winchester
Slough
Croydon
Stansted
Colchester
Chichester
Crawley
Maidstone
Chelmsford
Hastings
Bedford
Richmond

More options for your flight to London