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Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Thailand to Ko Samui from ฿1,853

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 26/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — USM
16 Nov — 23 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Thailand to Ko Samui

Keep the following information in mind while searching for Thailand to Ko Samui flight deals. Data was last updated 17 October 2025.

Round-trip from

฿4,616

One-way from

฿1,853

Popular in

August

Cheapest in

September

Average price

฿6,956

Good round-trip deal

฿8,051 or less

Good one-way deal

฿2,515 or less
Bangkok Airways
  • Bangkok Airways
  • 25/11-27/11
  • Nonstop
  • 2h 25m total
  • Thailand to Ko Samui
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Bangkok Airways
  • Bangkok Airways
  • 26/11
  • Nonstop
  • 1h 05m total
  • Thailand to Ko Samui
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (฿4,895 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (฿3,719 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Thailand to Ko Samui.
Search Deals
Price to beat on a one-way flight from Thailand to Ko Samui.
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Find flight deals from Thailand to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Ko Samui
Explore the most affordable flight options available from Thailand to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 October 2025.

Tue 25/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 27/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 16/10฿4,616
Sun 16/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 27/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/10฿4,648
Wed 12/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Tue 18/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/10฿4,681
Mon 20/1006:15BKK - USM
Nonstop1h 05mBangkok Airways
Tue 4/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/10฿4,713
Tue 18/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Wed 26/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 17/10฿4,746
Mon 17/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 20/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 17/10฿4,843
Fri 28/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Fri 19/1213:35USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 16/10฿4,876
Sun 23/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 27/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 14/10฿4,908
Mon 17/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Wed 19/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 17/10฿4,941
Thu 13/1118:40BKK - USM
Nonstop1h 35mBangkok Airways
Thu 20/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 16/10฿4,973
Wed 12/1106:10BKK - USM
Nonstop1h 35mBangkok Airways
Wed 19/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 17/10฿5,038
Sat 15/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 4/1215:35USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 17/10฿5,071

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 17 October 2025.
Use the filters below to find and compare flights from Thailand to Ko Samui that are best for you.

Fly from

Thailand

Fly to

Ko Samui

Route

Depart

Return

Price

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Tue 17/3

17:30-18:40

Nonstop1h 10m

Ko Samui

Sat 28/3

07:00-08:15

Nonstop1h 15m

฿5,298

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Fri 21/11

18:55-20:30

Nonstop1h 35m

Ko Samui

Sat 22/11

11:00-12:35

Nonstop1h 35m

฿5,591

Phuket CityKo Samui

HKT - USM

HKTUSM

Phuket City

Wed 10/12

17:30-18:25

Nonstop0h 55m

Ko Samui

Fri 12/12

09:20-10:20

Nonstop1h 00m

฿5,753

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sun 9/11

06:10-07:45

Nonstop1h 35m

Ko Samui

Tue 18/11

07:00-08:15

Nonstop1h 15m

฿5,753

Phuket CityKo Samui

HKT - USM

HKTUSM

Phuket City

Sun 15/3

12:55-13:50

Nonstop0h 55m

Ko Samui

Tue 17/3

19:00-20:00

Nonstop1h 00m

฿5,981

RayongKo Samui

UTP - USM

UTPUSM

Utapao Rayong Pattaya

Sat 1/11

17:25-18:30

Nonstop1h 05m

Ko Samui

Fri 21/11

11:10-16:50

1 stop5h 40m

฿6,013

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sat 7/3

19:15-20:25

Nonstop1h 10m

Ko Samui

Sat 14/3

07:00-08:15

Nonstop1h 15m

฿6,111

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 7/11

06:00-07:10

Nonstop1h 10m

Ko Samui

Mon 10/11

19:10-20:45

Nonstop1h 35m

฿6,111

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 27/11

06:00-07:10

Nonstop1h 10m

Ko Samui

Sun 21/12

07:55-09:10

Nonstop1h 15m

฿6,111

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 13/11

06:00-07:10

Nonstop1h 10m

Ko Samui

Sun 16/11

08:30-09:45

Nonstop1h 15m

฿6,111

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 60 results
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Best time to book a flight from Thailand to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Thailand with our price prediction graph.
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 Thailand to Ko Samui

What is the cheapest month to book a flight from Thailand to Ko Samui?

Currently, June is the cheapest month in which you can book a flight from Thailand to Ko Samui (average of ฿650). Flying from Thailand to Ko Samui in December is currently the most expensive (average of ฿1,723). 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 TH to USM?

Find hourly flight availability from Thailand 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 17 October 2025.

One of the essential ways to save on airfare from Thailand to Ko Samui is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at midday could potentially save you up to 19% on airfare.

What is the cheapest day to fly from Thailand to Ko Samui?

Use this chart to determine the cheapest time to fly return from Thailand to Ko Samui. Price data was last updated on 12 October 2025.

Travellers seeking maximum savings on their Thailand to Ko Samui flight should consider departing on Tuesday mornings 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 Thailand to Ko Samui

Explore weekly flight availability from Thailand 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 17 October 2025.

The most flights from TH0 to USM are scheduled on a Thursday (344 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (253 on average).

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 17 October 2025.
Get a feel of what it's like to fly with Bangkok Airways from Thailand 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.
Bangkok Airways
8.0
Very Good
114 reviews
Check prices

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

6.1

Food

7.2

Overall

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very Good
114 reviews
Bangkok Airways
8.0
Very Good
114 reviews
Check prices

Comfort

7.9

Boarding

8.0

Crew

8.5

Entertainment

6.1

Food

7.2

Overall

8.0

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

Related info for your journey

Find useful and relevant information for your journey from Thailand 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 Thailand?

    Ko Samui (USM) is the airport you will fly into if you book a flight from Thailand to Ko Samui. It is only a 3.3 km journey from Ko Samui (USM) to Ko Samui’s city centre.

  • How long is the flight from Thailand to Ko Samui?

    A quick flight from Thailand to Ko Samui can take about 1h 10m. Bangkok Airways provides one of the quickest options available for as low as ฿5,298. Airlines will cover a distance of 467 km. Most flights are nonstop.

  • What are the most popular routes from Thailand to Ko Samui?

    Most travellers choose Bangkok Suvarnabhumi - Ko Samui, Bangkok Don Mueang Intl - Ko Samui or Phuket City - Ko Samui when deciding on the best route from Thailand to Ko Samui.

  • What are the most reliable airlines from Thailand to Ko Samui?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Thailand to Ko Samui on time: เอทิฮัดแอร์เวย์ (93%), Emirates (91%), แอร์ฟร้านซ์ (87%).

  • What are the cheapest flights from Thailand to Ko Samui?

    Looking at all options, your cheapest flight can be booked for ฿2,279. While the most popular route (Bangkok Suvarnabhumi - Ko Samui) can be booked for ฿4,486 on average, our data indicates ฿6,500 when flying from Thailand to Ko Samui.

  • Can I find deals for flights from Thailand to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Thailand to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Ko Samui.

  • Can I find deals for business class flights from Thailand to Ko Samui?

    Yes. Cheapflights offers flight deals from Thailand 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 Thailand to Ko Samui?

    Currently, June is the cheapest month in which you can book a flight from Thailand to Ko Samui (average of ฿650). Flying from Thailand to Ko Samui in December is currently the most expensive (average of ฿1,723). 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.

See more FAQs

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Thailand to Ko Samui

Discover the top airline that operate flights from Thailand 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 17,341 searches. Data last updated 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿3,802Average฿8,446FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

Fly with Cheapflights

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 Thailand to Ko Samui?

Cheapflights helps you search for flights from Thailand to Ko Samui via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Ko Samui?

Millions of users choose and trust Cheapflights to book the best flight deals from Thailand to Ko Samui for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Thailand to Ko Samui with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Thailand to Ko Samui, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Thailand to Ko Samui become cheaper?

Of course! You can now track prices for flights from Thailand to Ko Samui and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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