$277 Find Cheap Flights from South Korea to the United Kingdom

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KAYAK's insights & trends for flights to the United Kingdom

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

What is the cheapest flight to the United Kingdom?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to the United Kingdom from South Korea found in the last 72 hours was to London Heathrow Airport, at $961 round-trip. The most popular route is Incheon Intl Airport (ICN) to London Heathrow Airport (LHR) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $961.

What is the cheapest month to fly from South Korea to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from South Korea to the United Kingdom, 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 South Korea to the United Kingdom is March, when tickets cost $629 (return) on average. On the other hand, the most expensive months are September and August, when the average cost of round-trip tickets is $1,375 and $1,353 respectively.

How far in advance should I book a flight from South Korea to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to the United Kingdom, 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 the flight from South Korea to the United Kingdom, 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 the United Kingdom?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United Kingdom is London Heathrow Airport (LHR), with an average flight price of $856.


Good to know

Low seasonMarch
High seasonDecember
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 18% lower on average.

FAQs for booking flights from South Korea to the United Kingdom

  • How does KAYAK find such low prices on flights from South Korea to the United Kingdom?

    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 South Korea to the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from South Korea to the United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from South Korea to the United Kingdom?

    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 from South Korea to the United Kingdom 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 South Korea to the United Kingdom?

    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 South Korea to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to the United Kingdom?

    Based on KAYAK data, the cheapest day to fly to the United Kingdom is Wednesday where round-trip tickets can be as cheap as $873. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,114 on average.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the evening, when round-trip flights cost $759 on average. Morning departures are around 40% more expensive than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,064.

Top 5 airlines serving from South Korea to the United Kingdom

Need help choosing which airline to fly with from South Korea to the United Kingdom? 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 1076 reviews
8.2Entertainment
8.7Crew
8.1Food
8.5Boarding
8.3Comfort
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.

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

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 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

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

long flights are difficult but the crew and amenities made it a very good experience

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.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

The boarding process was good. The toilet could be better maintained.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

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

The temperature of the plane cabin is too hot. Sweat and uncomfortable. Also my food tray was broken down drinks fall off

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 !

Book cheap flights from South Korea to the United Kingdom

Recent round-trip flight deals

6/11Wed
1 stopChina Eastern
28h 35mICN-LGW
6/25Wed
1 stopChina Eastern
18h 20mLGW-ICN
$468
6/11Wed
1 stopChina Eastern
28h 35mICN-LGW
6/26Thu
1 stopChina Eastern
16h 20mLGW-ICN
$484
6/9Mon
1 stopAir China
37h 20mICN-LHR
6/19Thu
1 stopAir China
30h 55mLHR-ICN
$543
6/13Fri
1 stopAir China
15h 45mPUS-LHR
6/20Fri
1 stopAir China
31h 20mLHR-PUS
$586
6/5Thu
1 stopKLM
17h 00mICN-LHR
6/11Wed
1 stopKLM
15h 15mLHR-ICN
$634
7/19Sat
1 stopLufthansa
17h 05mICN-LHR
1/11Sun
1 stopLufthansa
15h 20mLHR-ICN
$658
6/4Wed
2 stopsLufthansa
18h 30mICN-LHR
6/11Wed
1 stopLufthansa
16h 55mLHR-ICN
$679
6/16Mon
1 stopKLM
18h 25mICN-LCY
6/23Mon
1 stopKLM
14h 35mLCY-ICN
$747
6/8Sun
1 stopEtihad Airways
21h 40mICN-LHR
6/19Thu
1 stopEtihad Airways
23h 20mLHR-ICN
$761
6/18Wed
1 stopEtihad Airways
19h 10mICN-LHR
7/3Thu
1 stopEtihad Airways
17h 15mLHR-ICN
$833

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Recent one-way flight deals

8/13Wed
1 stopChina Eastern
30h 25mICN-LGW
$277
7/8Tue
1 stopVietnam Airlines
37h 55mPUS-LHR
$284
5/26Mon
1 stopAir China
37h 20mICN-LHR
$288
5/28Wed
1 stopAir China
15h 25mICN-LHR
$308
10/13Mon
1 stopKLM
16h 50mICN-LCY
$598
9/14Sun
1 stopKLM
17h 45mICN-LCY
$606
10/7Tue
nonstopKorean Air
14h 25mICN-LHR
$617
5/28Wed
nonstopAsiana Airlines
14h 30mICN-LHR
$677
5/27Tue
nonstopAsiana Airlines
14h 30mICN-LHR
$685
5/26Mon
nonstopKorean Air
14h 25mICN-LHR
$705

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Last minute flights to the United Kingdom

Last minute flight, train and bus deals

5/21Wed
multi-stopChina Eastern
34h 05mICN-LHR
5/28Wed
multi-stopChina Eastern
34h 00mLHR-ICN
$598
5/24Sat
multi-stopSWISS
43h 25mICN-LHR
5/26Mon
multi-stopSWISS
28h 20mLHR-ICN
$647
5/22Thu
multi-stopKLM
18h 25mICN-LCY
5/30Fri
multi-stopKLM
14h 35mLCY-ICN
$733
5/22Thu
multi-stopKLM
18h 25mICN-LCY
5/28Wed
multi-stopKLM
15h 15mLCY-ICN
$768
5/22Thu
multi-stopAir China
35h 20mGMP-LHR
6/4Wed
multi-stopAir China
30h 25mLHR-GMP
$913
5/22Thu
nonstopAsiana Airlines
14h 30mICN-LHR
6/4Wed
nonstopAsiana Airlines
12h 50mLHR-ICN
$947
5/21Wed
nonstopAsiana Airlines
14h 30mICN-LHR
5/28Wed
nonstopAsiana Airlines
12h 50mLHR-ICN
$948
5/21Wed
multi-stopAir China
35h 20mGMP-LHR
5/28Wed
multi-stopAir China
30h 25mLHR-GMP
$966
5/21Wed
nonstopKorean Air
14h 25mICN-LHR
5/26Mon
nonstopKorean Air
12h 40mLHR-ICN
$974
5/25Sun
nonstopKorean Air
14h 25mICN-LHR
5/26Mon
nonstopKorean Air
12h 40mLHR-ICN
$1,009

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Everything you need to know for your flight to the United Kingdom

Cabin class types available on flights to the United Kingdom

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

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