Cheap flights from Bangkok Suvarnabhumi Airport to Ko Samui from $80

In general, November is the cheapest month to fly from Bangkok Suvarnabhumi Airport to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $200. If you don’t want to visit Ko Samui in November, then you should wait until September to fly from Bangkok Suvarnabhumi Airport, when ticket prices are also cheap, with an average price of $204.

Our data shows that Monday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $255. Flights from Bangkok Suvarnabhumi Airport to Ko Samui on a Friday will generally be more expensive and average around $286. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Bangkok Suvarnabhumi Airport 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 $267. In the evening is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $292 per ticket.

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

You are more likely to see cheaper flights to Ko Samui from Bangkok Suvarnabhumi Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $248 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Bangkok Suvarnabhumi Airport for as low as $200 on momondo.

Bangkok Airways is the most popular carrier operating from Bangkok Suvarnabhumi to Ko Samui

Bangkok Airways, Thai AirAsia and Thai Lion Air are the top three most popular airlines that fly to Ko Samui from Bangkok Suvarnabhumi Airport according to our data. Bangkok Airways is the first choice among our users, with 90% of people opting to fly with this airline when traveling to Ko Samui. Keep in mind that there are 5 different airlines that fly to Ko Samui on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% 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 93 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

315 flights are operational daily from Bangkok Suvarnabhumi Airport to Ko Samui as of April 2026. The most popular departure time for this route is 3:00PM, with 47% of flights per day taking off in the afternoon.

As of April 2026, 2,210 flights take off from Bangkok Suvarnabhumi Airport and land in Ko Samui each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.