Find a good deal on your flight from London to Koh Samui with Netflights. 78 flights go via this route every week, and we've collected them all to help you find the best deal. If you want to keep your options open, take a look at flights from another airport in London.
Generally, London Heathrow (LHR) is the most popular choice for flights to Koh Samui. And the most popular airlines are Finnair, British Airways & British Airways. But when you fly is just as important as who you fly with. If you're flexible on dates, try searching by month to see when the cheapest flights are.
On average, the 9894 km flight to Koh Samui takes 18 hrs 35 mins. If you want a bargain, keep an eye out for flights with Qatar Airways, as they often have good deals. Or you could broaden your search by looking at flights to other airports in Thailand to see if there are any cheaper options.
We’ve scanned 45 flights today to help you find the cheapest deals – not just to Koh Samui, but worldwide. You can also compare the prices of hotels and hire cars for your stay in Thailand. Simply use the tabs above, or add them to your booking once you’ve chosen your flight.