USM - LON

£279 Find Cheap Flights from Ko Samui to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ko Samui to London departing on 8/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ko Samui to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ko Samui to London, as well as popular online travel agencies
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Expert advice
Useful Info
Flights Deals

Cheap Flights from Ko Samui to London (USM-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ko Samui 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 Ko Samui to London

Thu, 24 Jul - Thu, 31 Jul
 Logo
08:45 - 06:40USM-LGW
27h 55m2 stops
 Logo
11:35 - 18:30LGW-USM
24h 55m2 stops
Sat, 2 Aug - Sat, 16 Aug
 Logo
21:00 - 12:25USM-LHR
21h 25m2 stops
 Logo
22:15 - 07:35LHR-USM
27h 20m2 stops
Tue, 26 Aug - Wed, 10 Sep
Qantas Airways Logo
16:25 - 06:35USM-LHR
20h 10m1 stop
Qantas Airways Logo
20:50 - 21:10LHR-USM
18h 20m1 stop
£1,010Qantas Airways
Find Deal
Mon, 25 Aug - Thu, 11 Sep
Qatar Airways Logo
12:10 - 06:40USM-LGW
24h 30m2 stops
Qatar Airways Logo
09:00 - 10:30LGW-USM
19h 30m2 stops
£1,013Qatar Airways
Find Deal
Mon, 25 Aug - Mon, 8 Sep
Qatar Airways Logo
17:55 - 06:40USM-LGW
18h 45m2 stops
Qatar Airways Logo
09:00 - 20:25LGW-USM
29h 25m2 stops
£1,019Qatar Airways
Find Deal
Thu, 28 Aug - Sun, 7 Sep
Qantas Airways Logo
08:20 - 06:35USM-LHR
28h 15m1 stop
Qantas Airways Logo
20:50 - 21:10LHR-USM
18h 20m1 stop
£1,043Qantas Airways
Find Deal
Mon, 25 Aug - Fri, 12 Sep
SWISS Logo
09:15 - 07:55USM-LHR
28h 40m2 stops
SWISS Logo
08:40 - 13:45LHR-USM
23h 05m2 stops
£1,050SWISS
Find Deal
Mon, 25 Aug - Sun, 7 Sep
SWISS Logo
09:15 - 07:55USM-LHR
28h 40m2 stops
SWISS Logo
06:00 - 21:10LHR-USM
33h 10m2 stops
£1,057SWISS
Find Deal
Sat, 2 Aug - Sat, 16 Aug
EVA Air Logo
08:45 - 19:20USM-LHR
16h 35m1 stop
EVA Air Logo
21:35 - 20:50LHR-USM
17h 15m1 stop
£1,074EVA Air
Find Deal
Sun, 24 Aug - Sun, 7 Sep
EVA Air Logo
08:00 - 19:20USM-LHR
17h 20m1 stop
EVA Air Logo
21:35 - 20:50LHR-USM
17h 15m1 stop
£1,244EVA Air
Find Deal
Expert advice

Expert advice for your flight from Ko Samui to London

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Finnair

Finnair’s A350 features lower cabin altitude and higher humidity for a better arrival feeling.


Finnair’s economy comfort offers more legroom for a small additional charge, enhancing comfort.

Read more about Finnairby Gabriel Leigh
Iberia

Iberia’s business class offers roomy seating with all-aisle access and comfortable bedding.


Enjoy Spanish cuisine with two meals on Iberia long-haul flights, including breakfast and lunch or dinner.

Read more about Iberiaby Marisa Garcia
British Airways

BA’s premium economy offers 18 cm extra legroom, priority boarding, and bigger baggage allowance.


BA’s cabin crew are professional and proactive, enhancing the flight experience.

Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Useful Info

KAYAK's insights & trends for Ko Samui to London flights

Get data-powered insights and trends into flights from Ko Samui to London to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ko Samui to London?

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

If your flying dates are flexible, you should consider flying to London on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Ko Samui to London. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.


Good to know - Cheap tickets from Ko Samui to London

Low seasonOctober
High seasonDecember
Cheapest flight£279
Best time to beat the crowds (49% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Ko Samui to London Heathrow Airport

When to book flights from Ko Samui to London

Are your dates flexible? Find out the best times to travel from Ko Samui to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ko Samui to London

  • What is the cheapest flight from Ko Samui to London?

    In the last 3 days, the lowest price for a flight from Ko Samui to London was £379 for a one-way ticket and £1,145 for a return.

  • Which airports will I be using when flying from Ko Samui to London?

    On your way to London, you’ll fly out from Ko Samui. You’ll be landing in one of London’s 2 airports: London Gatwick or London Heathrow.

  • Which aircraft models fly most regularly from Ko Samui to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ko Samui to London?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Ko Samui and London, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ko Samui to London, EVA Air or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from Ko Samui to London are EVA Air and Qatar Airways. With an average price for the route of £971 and an overall rating of 8.4, EVA Air is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of £986 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ko Samui 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 from Ko Samui to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ko Samui to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Ko Samui 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 Ko Samui to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to Ko Samui with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ko Samui 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 from Ko Samui up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 3 airlines serving from Ko Samui to London

 
See real verified KAYAK customer reviews for airlines flying from Ko Samui to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ko Samui 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.
8.4
EVA AirOverall score based on 1202 reviews
8.0Entertainment
8.4Boarding
8.1Food
8.6Crew
8.3Comfort
Airline reviews

First time traveling with EVA.. great experience in economy class... Personnel very friendly..

10.0 ExcellentJaime, Apr 2025DPS - TPE
Read more EVA Air reviews

First time traveling with EVA.. great experience in economy class... Personnel very friendly..

Everything is good staff is polite and helpful flights are on time sub sandwhich for a snack was good with a bottle of water only thing maybe more variety of food like breakfast or dinner depends on the time

The flight attendants should be nicer, on my first flight I told them I’d prefer a veggie meal sometimes and then she began to lecture me about it, it was a late flight and I wanted an easy digestion meal so that I can sleep quickly. The meals were abit odd, breakfast on my last flight had eggs, oatmeal and fish, did not taste good at all, strange combination. The economy seats are very tight and crowded, not comfortable at all. Overall for the price I paid I thought I was going to get more.

seats are pitched well. you don't feel too tight.

I appreciate the email reminders for online check-in which made my entry to the lines less stressful. The flight was on schedule and on time. The baording staff were proactively helpful and approachable. The airplane inflight food, entertainment and comfies as well as provisions are excellent even in the economy seating. The airline transfer was smooth and easy! Luggage safe and intact! Thank you EVA airline for making my trip a reliable safe and comfortable experience.

Clean plane, friendly crew, mostly on-time departure. Negativo since there were no snacks offered. Cold drinks only was fine due to turbulence, but nothing to eat? Really?

I was sleep when they brought the food. They had put a note on my seat. There was no food when I asked for food later. There was just one main meal served in this 14 hours flight. They offered me sandwich with ham which I don’t eat since I am pescatarian. Long story short I had to wait to get to TPE to get something to eat. I am extremely disappointed from the service. I have been flying EVA since I was 1 year old. Perhaps no more EVA for me. Seems EVA glorious day is long gone

The food is quite mediocre. I had spaghetti and the tomato based sauce was quite salty and there were no other flavors, no spices used in the sauce.

basic and only minimum of service, they offer nothing special

Except for crying babies all was ok although the movie selection wasn't the best.

Five star experience all around except for my seat, which was broken. It would only go down 70%.Of the way. It defeats the purpose of buying a business class ticket if you don’t actually get to lay flat..

I love this airline.God bless CAO and the whole staff of this company

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

Not so good. I paid for a preference economic seat, and I couldn’t incline it back because it was blocked. They explained me that because is the last before emergency exit. The company new that but it was not explained in the seat selection

It was on time. Snacks could have been provided for free.

Tirana was crazy check in and getting bussed to another gate. Both Germany stops were intensive customs but organized, but that wasn't the airlines problem. The crews were fabulous on the planes. The announcements were not easy to understand in English, slurred speech. Customs inthe US were fast. We waited for luggage, three later arriving planes had their luggage and left before us

Business class old style from 10 years ago. Ok for short flights but nor for 12 hours journey. The passenger near the window have to jump over the passenger seat aisle side or wake him up to upright the seat. That’s not the business class that you expect on long night flight. Seats are not so confortable. And believe it or not no wifi!

We have travelled on 13 December with Austrian Airlines from Yangon through Bangkok and Vienna to Varna. The first flight operated by Thai Airlines was nice and comfortable. I wouldn’t say the same thing about the next two flights which were operated directly by the Austrian Airlines. During our flight from Bangkok to Vienna:  > The service was very poor – serving of food and drinks was disorganized, late and not combined, the stewards were walking back and forth without doing anything substantial for the passengers. Even the morning breakfast was very late with a cup of coffee almost while landing (after a reminding).  > The food itself was OK-ish but for a 12-hour flight, there were no snacks/bites in between dinner and breakfast as it is with the other airlines.  > The cutlery was wooden, most probably recycling, but very unpleasant to eat with.  > The stewards were not rude but not friendly and/or helpful  > And also, half of the passengers had travel sets, others did not. The flight from Vienna to Varna was another surprise: firstly, the flight was late and secondly, they were serving only water free, even the coffee was paid, so were the snacks, but we had to pay to reserve seats. The whole experience is as if it was a low-cost airline. All in all, I wouldn’t recommend using the services of Austrian Airlines: the ticket prizes are quite the same as of the other carriers flying to this destination and you would have much pleasant time.

Friendly staff, always good food , as comfortable as it can be in economy

I had to stay in the airport 15 even with a hotel reservation..i was refused to inter to qatar cuz the hotel was outside the airport. They could have offered a solution. It was really exhausting for me and my family.

I was unable to pre purchase sear upgrades or internet. Their online site is not user friendly and poor. I felt singled out in customs. Seats are very small even for a small person.

Qatar Airways did a very good job. Flights were slightly delayed with boarding but pilots made up time by arrival. The food was OK, no better or worse than other airlines. Although it would be nice to have three meals during 16 hours flight instead of two.

I recently travelled in Business Class with Qatar Airways, and overall, it was a pleasant experience. The cabin crew stood out for their kindness and professionalism, making the journey truly comfortable. The food exceeded expectations and was exceptional in both quality and presentation. The boarding staff was courteous, though I would like to mention that the staff member responsible for checking tickets during boarding could benefit from additional training to be more welcoming. A warm and hospitable approach would enhance the passenger experience significantly. However, one aspect of the journey was particularly frustrating. The in-flight entertainment system was disappointing, as the headphones provided did not work at all due to a loose connection. This significantly impacted the experience, especially since the flight also lacked Wi-Fi service. Addressing these issues would greatly enhance the overall travel experience. Lastly, I would suggest implementing a section-wise boarding process to streamline the boarding experience and minimise potential challenges. I appreciate the efforts Qatar Airways puts into delivering high-quality service and hope to see these improvements implemented in the future.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

The overall flight experience between Doha and Kolkata was satisfactory. The staff onboard were notably engaged, responsive, and enthusiastic, providing a level of service that stood out, especially when compared to the less attentive crew on the earlier leg from Heathrow to Doha. Their eagerness to assist made the journey more pleasant. Additionally, the time spent at the Silver Lounge in Doha contributed positively to the experience. The lounge offered a comfortable and relaxing environment, with adequate amenities and attentive staff. Overall, both the flight and the lounge experience in Doha met expectations, making for a smooth and satisfactory travel experience.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Doha airport is huge , takes long time to reach gate .

Moved seats, didn't accommodate requests to change seats even though other seats were available.

Check in desk people constrained by fear. Obvious typo on Uganda visa, even though approved, caused loss of flight. Something is definitely wrong with this system.

Everything you need to know for your flight from Ko Samui to London

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