Cheap Flights from London to Koh Samui
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Flights from London to Koh Samui
Find cheap flights from London to Koh Samui
We've found these cheap flights for you. You can book one-way or round-trip 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 AirwaysUS$888 US$1,28531% OFF31% OFFUS$1,285 US$888 -
LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Sat, May 10 | Singapore Airlines
USM 08:4537h1 stopsLHR 15:45Koh Samui - London | Wed, May 14 | ScootUS$982 US$1,28524% OFF24% OFFUS$1,285 US$982 -
LHR 21:3514h 55m1 stopsUSM 18:30London - Koh Samui | Mon, May 5 | EVA Air
USM 08:4516h 35m1 stopsLHR 19:20Koh Samui - London | Wed, May 7 | EVA AirUS$1,016 US$1,28521% OFF21% OFFUS$1,285 US$1,016
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LHR 21:3518h1 stopsUSM 21:35London - Koh Samui | Tue, May 13 | EVA Air
USM 08:4516h 35m1 stopsLHR 19:20Koh Samui - London | Sat, May 17 | EVA AirUS$1,01921% OFFUS$1,285 US$1,019
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LHR 21:3514h 55m1 stopsUSM 18:30London - Koh Samui | Tue, May 6 | EVA Air
USM 08:4516h 35m1 stopsLHR 19:20Koh Samui - London | Tue, May 13 | EVA AirUS$1,02420% OFFUS$1,285 US$1,024
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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 AirlinesUS$1,02820% OFFUS$1,285 US$1,028
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Tue, May 13 | Singapore Airlines
USM 08:4527h 40m1 stopsLGW 06:25Koh Samui - London | Tue, May 20 | Singapore AirlinesUS$1,02820% OFFUS$1,285 US$1,028
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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 AirUS$1,03120% OFFUS$1,285 US$1,031
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LHR 21:3516h 55m1 stopsUSM 20:30London - Koh Samui | Sat, May 10 | EVA Air
USM 09:1516h 5m1 stopsLHR 19:20Koh Samui - London | Wed, May 14 | EVA AirUS$1,03120% OFFUS$1,285 US$1,031
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Wed, May 14 | Singapore Airlines
USM 08:4527h 40m1 stopsLGW 06:25Koh Samui - London | Mon, May 19 | Singapore AirlinesUS$1,04119% OFFUS$1,285 US$1,041
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LON 13:0017h 25m1 stopsUSM Invalid DateLondon - Koh Samui | Sat, Apr 26 | Normal Airline
USM 15:006hNonstopLON 16:00Koh Samui - London | Mon, Apr 28 | Normal AirlineFind More FlightsFind More Flights
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Mon, May 12 | Singapore AirlinesUS$540 US$80833% OFF33% OFFUS$808 US$540
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Tue, May 27 | Singapore AirlinesUS$575 US$80828% OFF28% OFFUS$808 US$575
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Mon, May 19 | Singapore AirlinesUS$577 US$80828% OFF28% OFFUS$808 US$577
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Sat, May 10 | Singapore AirlinesUS$57728% OFFUS$808 US$577
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Sun, May 25 | Singapore AirlinesUS$58028% OFFUS$808 US$580
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LGW 10:1526h 15m1 stopsUSM 18:30London - Koh Samui | Thu, May 22 | Singapore AirlinesUS$58328% OFFUS$808 US$583
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Thu, May 29 | Singapore AirlinesUS$59626% OFFUS$808 US$596
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Sun, May 11 | Singapore AirlinesUS$64820% OFFUS$808 US$648
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Sat, Apr 26 | Singapore AirlinesUS$65019% OFFUS$808 US$650
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LHR 09:2527h 5m1 stopsUSM 18:30London - Koh Samui | Wed, May 14 | Singapore AirlinesUS$65419% OFFUS$808 US$654
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LON 13:0017h 25m1 stopsUSM Invalid DateLondon - Koh Samui | Sat, Apr 26 | 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.
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Cheapest airlines flights 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.
Frequently Asked Questions
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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 departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from London (LON) to Koh Samui (USM) cost?
According to Trip.com's data, the lowest price is around $1,198.
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.
Being flexible with your dates to get the cheapest London to Koh Samui ticket.
Tap "Date" on flight search bar to scan through the calender for London to Koh Samui airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Mon, May 12 at US$540 for one-way flights.
Compare cheap London to Koh Samui flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from London to Koh Samui. The cheapest airline operating is Singapore Airlines.
Set up a Price Alert
By setting up a Price Alert for your London to Koh Samui route, you can easily track the price of your airline tickets from London to Koh Samui without manually checking every day.
Don't miss cheap London to Koh Samui flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from London to Koh Samui to get exclusive deals for you.
London to Koh Samui Flight Information
| Cheapest one-way flight price | $539 |
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| Off-season for travel | April |
| Peak season for travel | January |
| Flight distance | 9,874.84 km |
| Popular airline | British Airways |
Plan Your Trip Around Koh Samui
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