Cheap flights from Bangkok to Ko Samui from $127

The month of October is, on average, the cheapest month to fly to Ko Samui from Bangkok, with most prices found around $298. If you aren’t able to travel during the month of October, then book flights to Ko Samui from Bangkok during November instead. Flights to Ko Samui in November, while not as cheap as those in October, still average around $304.

According to our data, Friday is the cheapest day to fly to Ko Samui from Bangkok. The lowest ticket price found for a Friday departure recently was $319. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to Ko Samui for around $442.

Our data shows that the cheapest Bangkok to Ko Samui flights are usually those with departure times in the morning. Our users have found flights to Ko Samui in the morning for as low as $356. Flights in the evening are often more expensive, with an average ticket price of $511.

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

You are more likely to see cheaper flights to Ko Samui from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $363 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 Bangkok for as low as $295 on momondo.

There are 3 cabin classes available to choose from on Bangkok to Ko Samui flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 17% of flights between Bangkok and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 94 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Bangkok Airways have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

As of August 2026, there are 320 flights per day flying from Bangkok to Ko Samui. The most common time of day flights depart is 14:00, with 44% of flights taking off at midday.

As of August 2026, 2,245 flights take off from Bangkok and land in Ko Samui each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.