Cheap Flights from London to Koh Samui
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Flights from London to Koh Samui
Airlines Flying from London to Koh Samui
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
EVA Air
Thai Airways
Singapore Airlines
Emirates
Norse Atlantic Airways
Saudia
easyJet
Swiss Airlines
China Eastern Airlines
Wizz Air Malta
Bangkok Airways
British Airways
Gulf Air
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Flight deals from London to Koh Samui
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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LHR 21:3518h1 stopsUSM 21:35London - Koh Samui | Fri, Jun 6 | EVA Air
USM 08:0017h 20m1 stopsLHR 19:20Koh Samui - London | Fri, Jun 13 | Bangkok AirwaysAU$1,405 AU$1,91327% OFF27% OFFAU$1,913 AU$1,405 -
LHR 20:3529h 15m1 stopsUSM 07:50London - Koh Samui | Wed, May 21 | Singapore Airlines
USM 19:2526h 20m1 stopsLHR 15:45Koh Samui - London | Mon, May 26 | Singapore AirlinesAU$1,577 AU$1,91318% OFF18% OFFAU$1,913 AU$1,577 -
LHR 11:2525h 5m1 stopsUSM 18:30London - Koh Samui | Tue, May 20 | Singapore Airlines
USM 19:2526h 20m1 stopsLHR 15:45Koh Samui - London | Mon, May 26 | Singapore AirlinesAU$1,601 AU$1,91316% OFF16% OFFAU$1,913 AU$1,601
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Mon, May 19 | Singapore Airlines
USM 08:4527h 40m1 stopsLGW 06:25Koh Samui - London | Mon, May 26 | Singapore AirlinesAU$1,62515% OFFAU$1,913 AU$1,625
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LHR 21:3518h1 stopsUSM 21:35London - Koh Samui | Fri, May 30 | EVA Air
USM 08:4516h 35m1 stopsLHR 19:20Koh Samui - London | Fri, Jun 6 | EVA AirAU$1,63015% OFFAU$1,913 AU$1,630
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LHR 21:3518h1 stopsUSM 21:35London - Koh Samui | Thu, Jun 5 | EVA Air
USM 08:0017h 20m1 stopsLHR 19:20Koh Samui - London | Sat, Jun 7 | EVA AirAU$1,63315% OFFAU$1,913 AU$1,633
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LHR 21:3518h1 stopsUSM 21:35London - Koh Samui | Wed, May 28 | EVA Air
USM 08:4516h 35m1 stopsLHR 19:20Koh Samui - London | Wed, Jun 4 | EVA AirAU$1,64014% OFFAU$1,913 AU$1,640
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LHR 12:3026h1 stopsUSM 20:30London - Koh Samui | Thu, May 22 | Thai Airways
USM 18:5530h 15m1 stopsLHR 19:10Koh Samui - London | Wed, May 28 | Bangkok AirwaysAU$1,64414% OFFAU$1,913 AU$1,644 -
LHR 21:3516h 55m1 stopsUSM 20:30London - Koh Samui | Thu, May 22 | EVA Air
USM 08:0017h 20m1 stopsLHR 19:20Koh Samui - London | Wed, May 28 | EVA AirAU$1,64414% OFFAU$1,913 AU$1,644
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LHR 21:3514h 55m1 stopsUSM 18:30London - Koh Samui | Wed, Jun 18 | EVA Air
USM 08:0017h 20m1 stopsLHR 19:20Koh Samui - London | Fri, Jun 20 | EVA AirAU$1,64514% OFFAU$1,913 AU$1,645
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LON 13:0017h 25m1 stopsUSM Invalid DateLondon - Koh Samui | Sun, May 18 | Normal Airline
USM 15:006hDirectLON 16:00Koh Samui - London | Tue, May 20 | Normal AirlineFind More FlightsFind More Flights
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Mon, May 19 | Singapore AirlinesAU$922 AU$1,41235% OFF35% OFFAU$1,412 AU$922
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Thu, May 22 | Singapore AirlinesAU$922 AU$1,41235% OFF35% OFFAU$1,412 AU$922
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Sun, May 25 | Singapore AirlinesAU$931 AU$1,41234% OFF34% OFFAU$1,412 AU$931
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LHR 11:2525h 5m1 stopsUSM 18:30London - Koh Samui | Fri, May 23 | Singapore AirlinesAU$98830% OFFAU$1,412 AU$988
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Wed, May 21 | Singapore AirlinesAU$98830% OFFAU$1,412 AU$988
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LHR 21:2527h 55m1 stopsUSM 07:20London - Koh Samui | Tue, Jun 10 | Thai AirwaysAU$1,02527% OFFAU$1,412 AU$1,025
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LHR 21:2528h 10m1 stopsUSM 07:35London - Koh Samui | Sun, May 25 | Thai AirwaysAU$1,02527% OFFAU$1,412 AU$1,025
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Sun, May 18 | Singapore AirlinesAU$1,04326% OFFAU$1,412 AU$1,043
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Tue, May 27 | Singapore AirlinesAU$1,04626% OFFAU$1,412 AU$1,046
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Thu, May 29 | Singapore AirlinesAU$1,21514% OFFAU$1,412 AU$1,215
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LON 13:0017h 25m1 stopsUSM Invalid DateLondon - Koh Samui | Sun, May 18 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Information from London to Koh Samui
| Cheapest one-way flight price | AU$921 |
|---|---|
| Off-season travel month | April |
| Peak season for travel | June |
| Flight distance | 9,874.84km |
| Popular airline | EVA Air |
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
FAQ
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When are flight tickets from London (LON) to Koh Samui (USM) the cheapest?
Airlines adjust prices for flights from London to Koh Samui based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much are flights from London (LON) to Koh Samui (USM) cost?
According to Trip.com's data, the lowest price is around AU$1,895. -
How many airports in Koh Samui (USM)?
There are 1 airport(s) in Koh Samui (USM): Samui Airport.
How to find a cheap flight from London to Koh Samui
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to Koh Samui. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest flight from London to Koh Samui.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from London to Koh Samui over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Mon, May 19, with one-way flights priced at just AU$922.
Compare cheap flight deals from London to Koh Samui across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from London to Koh Samui. The cheapest airline for this route is Singapore Airlines.
Set up a Price Alert
By setting up a Price Alert for your journey from London to Koh Samui, you can easily keep an eye on ticket prices without having to check every day.
Don't miss out on cheap flight deals and promo codes from London to Koh Samui.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from London to Koh Samui and snag some exclusive deals just for you.
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