Cheap flights from Bangkok to Ko Samui from R1 350

The cheapest month to fly to Ko Samui from Bangkok is in October. Flight prices, which tend to average around R3 449, are often lower during this time because this is during the off-season. If you don’t want to visit Ko Samui in October, then you should wait until November to fly from Bangkok, when ticket prices are also cheap, with an average price of R3 549.

The cheapest day to depart on your flight to Ko Samui is on a Monday when prices can be found for as low as R2 852. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to Ko Samui for around R5 164.

In the morning is the cheapest time of day to fly from Bangkok to Ko Samui when you can find flight prices for as low as R4 276. Flying to Ko Samui in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ko Samui is at midday when prices are around R5 374.

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 R4 411 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 R3 499 on momondo.

There are 2 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 19% 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 97 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.

Monday 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 19% of their flights experiencing any sort of delay.

211 flights are operational daily from Bangkok to Ko Samui as of October 2026. The most popular departure time for this route is 9:00, with 47% of flights per day taking off in the afternoon.

1 478 flights are operational weekly from Bangkok to Ko Samui as of October 2026. The most popular departure day for this route is Fri, with 16% of flights per week taking off on this day.