USM - LON

£295 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 11/3. 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

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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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£837
Multiple Airlines
Sat 7/2Sun 22/2
USM - LHR • 2 stops
Cheapest one-way flight
£295
Typical prices: £464-£488
Multiple Airlines
Wed 11/3
USM - LHR • 3 stops
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair’s economy comfort offers more legroom.
BA’s cabin crew are professional and proactive.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Oman Air
Cheapest • from £895 (return)
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
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Expert advice
Flight 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

Sat, 7 Feb - Sun, 22 Feb
Multiple Airlines Logo
21:40 - 14:00
USM
-
LHR
23h 20m
2 stops
Multiple Airlines Logo
19:20 - 07:30
LHR
-
USM
29h 10m
2 stops
£837Multiple Airlines
Mon, 23 Feb - Mon, 2 Mar
Multiple Airlines Logo
19:45 - 18:25
USM
-
LGW
29h 40m
3 stops
Multiple Airlines Logo
07:30 - 18:25
LGW
-
USM
27h 55m
3 stops
£846Multiple Airlines
Thu, 12 Mar - Thu, 19 Mar
Multiple Airlines Logo
19:45 - 15:25
USM
-
LHR
26h 40m
2 stops
Multiple Airlines Logo
16:30 - 20:25
LHR
-
USM
20h 55m
2 stops
£847Multiple Airlines
Mon, 23 Feb - Mon, 2 Mar
Multiple Airlines Logo
19:45 - 21:05
USM
-
LHR
32h 20m
2 stops
Multiple Airlines Logo
06:35 - 18:50
LHR
-
USM
29h 15m
2 stops
£849Multiple Airlines
Thu, 12 Feb - Thu, 19 Feb
Multiple Airlines Logo
11:40 - 06:25
USM
-
LHR
25h 45m
2 stops
Multiple Airlines Logo
08:40 - 18:15
LHR
-
USM
26h 35m
2 stops
£864Multiple Airlines
Sat, 7 Feb - Sun, 22 Feb
Multiple Airlines Logo
19:45 - 11:40
USM
-
LGW
22h 55m
2 stops
Multiple Airlines Logo
10:15 - 20:25
LGW
-
USM
27h 10m
3 stops
£868Multiple Airlines
Sat, 14 Mar - Sat, 21 Mar
Oman Air Logo
14:05 - 18:25
USM
-
LHR
35h 20m
2 stops
Oman Air Logo
20:05 - 10:35
LHR
-
USM
31h 30m
2 stops
£895Oman Air
Sat, 7 Feb - Sun, 22 Feb
Multiple Airlines Logo
08:45 - 18:20
USM
-
LGW
16h 35m
1 stop
Multiple Airlines Logo
06:20 - 20:25
LGW
-
USM
31h 05m
3 stops
£897Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Oman Air Logo
17:05 - 05:55
USM
-
LHR
19h 50m
2 stops
Oman Air Logo
20:05 - 21:20
LHR
-
USM
18h 15m
2 stops
£904Oman Air
Sat, 14 Mar - Sat, 21 Mar
EVA Air Logo
07:55 - 19:05
USM
-
LHR
18h 10m
1 stop
EVA Air Logo
21:20 - 19:50
LHR
-
USM
15h 30m
1 stop
£923EVA Air
Booking Insights

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.

Expert advice

Expert advice for your flight from Ko Samui to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

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.

Marisa Garcia

Marisa Garcia

Expert on Iberia

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.

Duncan Madden

Duncan Madden

Expert on British Airways

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.

Good to know - Cheap tickets from Ko Samui to London

Cheapest flight£295
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 £295 for a one-way ticket and £837 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 is the best airline for flights from Ko Samui to London, EVA Air or Austrian Airlines?

    The two airlines most popular with KAYAK users for flights from Ko Samui to London are EVA Air and Austrian Airlines. With an average price for the route of £1,023 and an overall rating of 8.4, EVA Air is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of £743 and an overall rating of 7.5.

  • 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.

Reviews of the top airlines flying 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 1334 reviews
8.0Entertainment
8.1Food
8.4Boarding
8.6Crew
8.3Comfort
Airline reviews

Very nice, I feel I got good value for the price.

10.0 ExcellentJimmy, Jan 2026
ORD - TPE
Read more EVA Air reviews

Very nice, I feel I got good value for the price.

The soft service on EVA was superb from the quick and attentive flight attendants, to the turn down service, and excellent food. This all made my 11 hour flight very comfortable and relaxing.

Amazing one of the best airlines i have ever traveled with. I live with medical issues called psoriatic arthritis and was in pain on the flight. The flight crew made sure I had fresh ice pack ever hour. Going above an beyond with service and care ⭐️⭐️⭐️⭐️⭐️.

I love EVA airline, but the KAYAK website for not in emergency, urgency and personal issues. For instance, on January 5/2026 with already booked the flight, I have a 15 hours of delay between airport when booked before as my choice. But if I want to go back home (U.S) early, then I have to contact the KAYAK office at I was in other country without phone service and nothing that EVA can do for me. Even I offered to pay more to change from another flight to go to the U.S early, not wasting at15 hours of delay, but EVA could not help me until I call KAYAK at an Island of nation. No office of KAYAK from any nation and times of difference in the world. However, everything and everyone is the best. Therefore, please KAYAK making much more easy for both the airline and passenger in some issues at the middle of nowhere in some country when no need to call KAYAK for some emergency, urgency, sick, etc or personal reference. Please, please, please no need to call KAYAK office for any changes of flights from urgency or private.

Excess baggage fees are outrageous ($250 per bag). Flight crew and planes are nice.

We were very impressed with the modern plane its amenities, as well as the services of flight attendants.

Seats. there's no way to go to the washroom when you’re seated in the middle without bothering the person beside you.

everything was so good! Especially Food. It was the best I've ever had! However,I requested to add mileage point to Star alliance group ANA; it hasn't been added yet.... 😞

Service in BKK was very good at answering our question about our canceled flight from Taipei to San Francisco. Did like the lead time about the canceled flight from Taipei to San Francisco and was not given the best options.

Staff show very stress with delayed flight more than passenger.

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

Most of the crew members were rude, flight arrived late and we missed our connecting flight, they damaged my friends suitcase so badly that two wheels had been destroyed.

Loved the courtesy and punctuality. Very professional and most importantly on time.

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

Very limited legroom in a 10 hour flight.very old plane.

The flight was delayed for 30 minutes with no apparent reason. There is no entertainment at all, and no USB or electric outlets for charging your phone or tablet.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

Accessibility serious problems in Viena airport making it seriousely difficult in in-between gates and boarding travel. Pretens of breakfast and service care in the economy pathetic.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

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

Information on your arrival and departure airports