Cheap flights from Southeast Asia to Ko Samui from €92

If you aren’t able to travel during the month of September, then book flights to Ko Samui from Southeast Asia during November instead. Flights to Ko Samui in November, while not as cheap as those in September, still average around €200.

The cheapest day to depart from Southeast Asia to Ko Samui is on a Friday when prices can be found for as low as €215. Flights from Southeast Asia to Ko Samui on a Wednesday will generally be more expensive and average around €306. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Southeast Asia to Ko Samui flights are usually those with departure times in the afternoon. Our users have found flights to Ko Samui in the afternoon for as low as €215. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around €296.

Fly from Phuket City 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 €224 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 €183 on momondo.

There is only 1 cabin class available to choose from on Southeast Asia to Ko Samui flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of August 2026, 336 flights take off from Southeast Asia and land in Ko Samui each day. The most common flight departure time for this route is 16:00, with 45% of daily flights taking off in the afternoon.

As of August 2026, there are 2,354 flights per week flying from Southeast Asia to Ko Samui. The most common day of the week flights depart is Sat, with 15% of flights taking off on this day.