£247 Find Cheap Flights from London Heathrow Airport to South Korea

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to South Korea departing on 12/1. 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

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Cheap Flights from Heathrow to South Korea

Cheapest return prices found by our users on KAYAK in the last 72 hours
Busan
Busan1 stop£404
Jeju City
Jeju City2 stops£486
Busan
Busan1 stop£404
Jeju City
Jeju City2 stops£486

Book Cheap Heathrow to South Korea Plane Tickets

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

Wed, 28 Jan - Wed, 4 Feb
China Eastern Logo
21:00 - 20:45
LHR
-
ICN
14h 45m1 stop
China Eastern Logo
08:55 - 17:30
ICN
-
LHR
17h 35m1 stop
£360China Eastern
Tue, 13 Jan - Mon, 26 Jan
Multiple Airlines Logo
21:00 - 20:45
LHR
-
ICN
14h 45m1 stop
Multiple Airlines Logo
16:15 - 18:35
ICN
-
LHR
35h 20m1 stop
£361Multiple Airlines
Fri, 16 Jan - Mon, 26 Jan
China Southern Logo
21:30 - 22:15
LHR
-
ICN
15h 45m1 stop
China Southern Logo
16:15 - 18:35
ICN
-
LHR
35h 20m1 stop
£363China Southern
Sun, 25 Jan - Sun, 1 Feb
China Southern Logo
22:00 - 13:50
LHR
-
ICN
30h 50m1 stop
China Southern Logo
16:15 - 17:00
ICN
-
LHR
33h 45m1 stop
£363China Southern
Mon, 5 Jan - Fri, 23 Jan
Air China Logo
20:25 - 21:55
LHR
-
ICN
16h 30m1 stop
Air China Logo
11:10 - 17:50
ICN
-
LHR
15h 40m1 stop
£365Air China
Wed, 11 Mar - Mon, 16 Mar
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m1 stop
Air China Logo
14:25 - 15:55
GMP
-
LHR
34h 30m1 stop
£379Air China
Sat, 4 Apr - Thu, 16 Apr
Shenzhen Airlines Logo
22:05 - 13:55
LHR
-
CJU
31h 50m1 stop
Shenzhen Airlines Logo
15:00 - 20:00
CJU
-
LHR
37h 00m1 stop
£800Shenzhen Airlines
Thu, 22 Jan - Mon, 26 Jan
Cathay Pacific Logo
16:50 - 18:35
LHR
-
CJU
16h 45m1 stop
Cathay Pacific Logo
20:00 - 20:10
CJU
-
LHR
33h 10m1 stop
£840Cathay Pacific
Thu, 22 Jan - Mon, 26 Jan
Cathay Pacific Logo
11:00 - 18:35
LHR
-
CJU
22h 35m1 stop
Cathay Pacific Logo
07:55 - 06:30
CJU
-
LHR
31h 35m1 stop
£841Cathay Pacific
Sat, 4 Apr - Sat, 18 Apr
Shenzhen Airlines Logo
22:05 - 13:55
LHR
-
CJU
31h 50m1 stop
Shenzhen Airlines Logo
15:00 - 20:00
CJU
-
LHR
37h 00m1 stop
£850Shenzhen Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to South Korea flights

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

What is the cheapest London Heathrow Airport to South Korea flight route?

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

The cheapest ticket to South Korea from London Heathrow Airport found in the last 72 hours was to Seoul, at £623 return. The most popular route is from London Heathrow Airport (LHR) to Incheon Intl Airport (ICN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £623.

What is the cheapest month to fly from London Heathrow Airport to South Korea?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to South Korea, 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 London Heathrow Airport to South Korea is November, when tickets cost £437 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £846 and £806 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to South Korea?

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

For London Heathrow Airport to South Korea, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from South Korea back to London Heathrow Airport, the best deals are generally found on Friday, with Saturday being the most expensive.

How far in advance should I book a flight from London Heathrow Airport to South Korea?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to South Korea, 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 a flight from London Heathrow Airport to South Korea, you should book around 4 weeks before departure, which saves you about 12% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to South Korea

Low seasonJanuary
Cheapest flight£247
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (51% more expensive on average)
Flight from London Heathrow Airport to Seoul Gimpo Intl

FAQs - booking South Korea flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to South Korea?

    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 London Heathrow Airport to South Korea.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to South Korea 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 London Heathrow Airport to South Korea?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to South Korea 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 from London Heathrow Airport to South Korea?

    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 from London Heathrow Airport to South Korea 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 South Korea?

    The cheapest time of day to fly to South Korea is generally in the afternoon, when retur flights cost £735 on average. Morning departures are around 16% cheaper than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the evening, which is peak travel time and where the average cost of a ticket is £1,032.

Reviews of the top 5 airlines flying from Heathrow to South Korea

 
Need help choosing which airline to fly with from Heathrow to South Korea? 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 1186 reviews
8.1Food
8.7Crew
8.2Entertainment
8.5Boarding
8.3Comfort
Airline reviews

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

10.0 ExcellentOmer, Nov 2025
MNL - ICN
Read more Korean Air reviews

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

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 plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

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.

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.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Not good - chair back could not move back for premium economy. Not worth the price

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

UA is ok. But check in was a very bad experience

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).

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

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!

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

Efficiency of staff, and comfort and cleanliness of aircraft was all great. Maybe a hot drink without payment at that time in the morning would be good!

The plane was late (as was my flight out from Birmingham the day before)

The entertainment is pretty boring. There are no new movies or TV shows from February. The food is just ok on the Atlanta to Frankfurt leg, but better on the Fra to Bengaluru leg.

The flight was delayed by an hour. Made the connection uncomfortably tight.

Check in could have been a little cheerful rather than dour

When we went to the lounge they told us to go into the main lounge and not the full business class section, later they told me that Lufthansa wont pay the full fee to alloq the business class passengers entry to the nicer sectikn where all the other airlines nusiness class passengers go into. Very poor arrangement.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Everything you need to know for your flight from Heathrow to South Korea

Information on your arrival and departure airports