฿2,677+ Cheap flights to Ko Samui
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Ko Samui in 2025
Find the latest flights to Ko Samui in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 10 July 2025.
Return from | ฿5,616 |
---|---|
One-way from | ฿2,677 |
Popular in | August |
Cheapest in | September |
Average price | ฿8,587 |
Find flight deals to Ko Samui
Cheapest flights to Ko SamuiExplore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 10 July 2025.
Explore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 10 July 2025.
Cheapflights Fare Finder
Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 10 July 2025.
Use the filters below to find and compare flights to Ko Samui that are best for you.
Fly from
Route
Depart
Return
Price
BangkokKo Samui
BKK - USM
BKKUSM
Bangkok Suvarnabhumi
Thu 1/1
06:00-07:10
Nonstop1h 10m
Ko Samui
Fri 13/3
07:00-08:15
Nonstop1h 15m
BangkokKo Samui
DMK - USM
DMKUSM
Bangkok Don Mueang Intl
Sat 18/10
18:15-19:45
Nonstop1h 30m
Ko Samui
Fri 24/10
15:55-17:25
Nonstop1h 30m
BangkokKo Samui
BKK - USM
BKKUSM
Bangkok Suvarnabhumi
Sat 27/9
06:15-07:20
Nonstop1h 05m
Ko Samui
Mon 29/9
17:55-23:40
1 stop5h 45m
BangkokKo Samui
DMK - USM
DMKUSM
Bangkok Don Mueang Intl
Sun 14/9
09:05-10:35
Nonstop1h 30m
Ko Samui
Thu 18/9
19:00-09:15
1 stop14h 15m
BangkokKo Samui
BKK - USM
BKKUSM
Bangkok Suvarnabhumi
Thu 30/10
21:30-10:40
1 stop13h 10m
BangkokKo Samui
DMK - USM
DMKUSM
Bangkok Don Mueang Intl
Tue 28/10
18:55-20:30
Nonstop1h 35m
BangkokKo Samui
BKK - USM
BKKUSM
Bangkok Suvarnabhumi
Tue 9/9
06:15-07:20
Nonstop1h 05m
BangkokKo Samui
DMK - USM
DMKUSM
Bangkok Don Mueang Intl
Tue 2/9
09:20-14:50
1 stop5h 30m
Best time to book a flight to Ko Samui
Have a flexible travel schedule? Discover the best time to fly to Ko Samui with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Ko Samui
When is the best time to book a flight to Ko Samui?
Use this chart to determine the optimal time to book a return flight from Bangkok to Ko Samui. Price data was last updated on 27 June 2025.
The best time to book flights to Ko Samui is 68 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.
How long is the flight to Ko Samui?
On average, a flight from Bangkok to Ko Samui takes 1 hour 17 minutes. Flights to Ko Samui from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.
When is the cheapest time to fly 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 6 July 2025.
Users looking for the lowest fares to Ko Samui should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Wednesday evenings, when prices are usually at their highest.
Weekly flight availability to Ko Samui
The most flights from Bangkok to Ko Samui are scheduled on a Thursday (287 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (267 on average).
What are the most popular airlines that fly to Ko Samui?
The most popular airline flying from Bangkok to Ko Samui is Bangkok Airways.
What are the cheapest airlines that fly to Ko Samui?
The cheapest airline flying from Bangkok to Ko Samui is Bangkok Airways.
Rainfall in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 mm per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.
Temperature in Ko Samui by month
Plan your trip to Ko Samui by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).
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 10 July 2025.
Read reviews from past customers who have flown Bangkok Airways to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Boarding
Overall
Food
Crew
Entertainment
Reviews
Douglas,May 2025
USM - HKG
Comfort
Boarding
Overall
Food
Crew
Entertainment
Reviews
Douglas,May 2025
USM - HKG
FAQs about flying to Ko Samui
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Why should you use Cheapflights to find cheap flight tickets 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.
Can Cheapflights find flights to Ko Samui with no change fees?
Need flexible booking options for your flight to Ko Samui ? 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 to Ko Samui become cheaper?
Yes, Cheapflights offers price alerts on Ko Samui flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.