Cheap flights from Southeast Asia to Ko Samui from £61

The cheapest month to fly to Ko Samui from Southeast Asia is in May. Flight prices, which tend to average around £64, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in May, then you should wait until July to fly from Southeast Asia, when ticket prices are also cheap, with an average price of £68.

According to our data, Monday is the cheapest day to fly to Ko Samui from Southeast Asia. The lowest ticket price found for a Monday departure recently was £167. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Ko Samui on Thursday is £211.

Our most recent data shows that the best time of day to fly to Ko Samui is in the evening. Flights from Southeast Asia to Ko Samui during this time can be as low as £168. Flights at midday are often more expensive, with an average ticket price of £198.

Fly from Bangkok Suvarnabhumi to Ko Samui for the best Southeast Asia - Ko Samui flight prices

You are more likely to see cheaper flights to Ko Samui from Southeast Asia when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around £186 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Southeast Asia for as low as £148 on momondo.

Bangkok Airways and Scoot are the most popular carriers operating from Southeast Asia to Ko Samui

Bangkok Airways, Scoot and Thai AirAsia are the top three most popular airlines that fly to Ko Samui from Southeast Asia according to our data. Bangkok Airways is the first choice among our users, with 90% of people opting to fly with this airline when travelling to Ko Samui. Keep in mind that there are 6 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.

The number of flights available between Southeast Asia and Ko Samui is 410 per day as of May 2026. The most frequent departure time is 16:00, with 46% of daily flights leaving in the afternoon.

The number of flights available between Southeast Asia and Ko Samui is 2,872 per week as of May 2026. The most frequent departure day is Tue, with 14% of weekly flights leaving on this day.