Cheapflights Tip: The best prices from Bangkok to Ko Samui are usually found in October or November, booked 88 days in advance, depart on a Monday or Thursday and return on a Friday
Find flight deals from Bangkok to Ko Samui
Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 September 2026.
Popular in
February
Cheapest in
October
Average price
฿7,957
Highest demand for flights based on searches. 11% potential increase in price (฿38,397 potential increase over avg. return price).
Best time to book a flight from Bangkok to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Bangkok with our price prediction graph.
TH1-USM
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Bangkok to Ko Samui
Prices
Airlines
Delays
How far ahead should I book a flight from Bangkok to Ko Samui?
The best time to book flights from Bangkok to Ko Samui is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Bangkok to Ko Samui?
Currently, October is the cheapest month in which you can book a flight from Bangkok to Ko Samui (average of ฿7,125). Flying from Bangkok to Ko Samui in July is currently the most expensive (average of ฿10,055). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BKK to USM?
Find hourly flight availability from Bangkok to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 September 2026.
It’s optimal to fly from Bangkok to Ko Samui in the evening. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at midday.
What is the cheapest day to fly from Bangkok to Ko Samui?
Use this chart to determine the cheapest time to fly return from Bangkok to Ko Samui. Price data was last updated on 19 September 2026.
Travellers seeking maximum savings on their Bangkok to Ko Samui flight should consider departing on Friday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Bangkok to Ko Samui
Explore weekly flight availability from Bangkok to Ko Samui. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 24 September 2026.
The most flights from TH1 to USM are scheduled on a Wednesday (317 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (288 on average).
How often are flights from Bangkok to Ko Samui delayed?
About 19% of weekly flights between Bangkok and Ko Samui have experienced delays in the past year, with the average delay time being 97 minutes.
What is the most punctual flight time for Bangkok to Ko Samui flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Bangkok to Ko Samui flights?
Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 19% of flights being delayed.
Reviews of airlines servicing Ko Samui
Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated 24 September 2026.
Get a feel of what it's like to fly with Bangkok Airways from Bangkok to Ko Samui by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Great short flight and free really good snack and water which I didn’t expect
Related info for your journey
Find useful and relevant information for your journey from Bangkok to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Ko Samui from Bangkok?
Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from Bangkok. On average, Ko Samui has 300 inbound flights from Bangkok per day from 1 airline. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre.
What is the cheapest airline to fly from Bangkok to Ko Samui round-trip?
According to our current data, Bangkok Airways (฿3,957), offers the cheapest pricing from Bangkok to Ko Samui. Bangkok Airways is 55% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Bangkok to Ko Samui?
Before booking your flight to Ko Samui from Bangkok, have a look at the most reliable airlines to get you to your destination on time: แอร์ฟร้านซ์ (83%), Cathay Pacific (75%), สวิส อินเตอร์เนชั่นแนล แอร์ไลน์( 70%).
What are the cheapest flights from Bangkok to Ko Samui?
The cheapest flight price from Bangkok to Ko Samui is ฿2,625. On average you can expect to pay ฿6,252. The most popular route, (Bangkok Suvarnabhumi - Ko Samui), can usually be booked for ฿5,027.
Can I find deals for business class flights from Bangkok to Ko Samui?
Yes. Cheapflights offers flight deals from Bangkok to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Bangkok to Ko Samui?
Currently, October is the cheapest month in which you can book a flight from Bangkok to Ko Samui (average of ฿7,125). Flying from Bangkok to Ko Samui in July is currently the most expensive (average of ฿10,055). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 24 September 2026.
Discover the top airline that operate flights from Bangkok to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 24 September 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Bangkok to Ko Samui?
Deals for Bangkok to Ko Samui flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Bangkok to Ko Samui?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui from Bangkok.
Can Cheapflights find flights from Bangkok to Ko Samui with no change fees?
Need flexible booking options for your flight to Ko Samui from Bangkok? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Bangkok to Ko Samui become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ko Samui from Bangkok today and book when prices fit your budget.
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