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Cheap flights from Thailand to Ko Samui from ฿2,009

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — USM
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

฿4,601

One-way from

฿2,009

Popular in

August

Cheapest in

September

Average price

฿8,521

Good round-trip deal

฿3,560 or less

Good one-way deal

฿2,933 or less
Bangkok Airways
  • Bangkok Airways
  • 12/9-18/9
  • Nonstop
  • 2h 20m total
  • Thailand to Ko Samui
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 20/9
  • Nonstop
  • 1h 05m total
  • Thailand to Ko Samui
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿5,670 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿3,467 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
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

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 3 July 2025.

Fri 12/917:20UTP - USM
Nonstop1h 05mBangkok Airways
Thu 18/911:10USM - UTP
Nonstop1h 15mBangkok Airways
Deal found 2/7฿4,601
Fri 14/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Sun 30/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 3/7฿5,605
Mon 27/1008:50DMK - USM
Nonstop1h 35mBangkok Airways
Thu 30/1016:35USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 3/7฿5,638
Fri 1/817:05HKT - USM
Nonstop0h 55mBangkok Airways
Sat 2/812:10USM - HKT
Nonstop1h 00mBangkok Airways
Deal found 1/7฿5,735
Mon 15/906:50BKK - USM
1 stop13h 35mMultiple Airlines
Sun 5/1007:00USM - BKK
Nonstop1h 15mMultiple Airlines
Deal found 2/7฿5,800
Thu 18/914:00KBV - USM
Nonstop0h 50mBangkok Airways
Thu 2/1012:30USM - KBV
Nonstop0h 50mBangkok Airways
Deal found 3/7฿5,962
Wed 12/1112:10CNX - USM
1 stop5h 30mBangkok Airways
Sun 16/1108:50USM - CNX
Nonstop1h 50mBangkok Airways
Deal found 1/7฿6,091
Wed 10/922:00HKT - USM
1 stop9h 20mMultiple Airlines
Sun 21/908:00USM - HKT
Nonstop1h 00mMultiple Airlines
Deal found 2/7฿6,124
Tue 9/918:15DMK - USM
Nonstop1h 30mMultiple Airlines
Tue 16/915:25USM - DMK
1 stop4h 40mMultiple Airlines
Deal found 1/7฿6,415
Thu 28/820:45KBV - USM
1 stop10h 35mMultiple Airlines
Mon 1/912:30USM - KBV
Nonstop0h 50mMultiple Airlines
Deal found 2/7฿7,096
Thu 28/822:20CNX - USM
1 stop9h 00mMultiple Airlines
Sun 31/808:55USM - CNX
Nonstop1h 45mMultiple Airlines
Deal found 3/7฿7,290
Sat 20/917:20UTP - USM
Nonstop1h 05mMultiple Airlines
Sat 15/1116:35USM - UTP
2 stops24h 15mMultiple Airlines
Deal found 1/7฿8,132

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 3 July 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

RayongKo Samui

UTP - USM

UTPUSM

Rayong Utapao Rayong Pattaya

Fri 12/9

17:20-18:25

Nonstop1h 05m

Ko Samui

Thu 18/9

11:10-12:25

Nonstop1h 15m

฿4,601

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 14/11

06:00-07:10

Nonstop1h 10m

Ko Samui

Sun 30/11

07:00-08:15

Nonstop1h 15m

฿5,605

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Mon 27/10

08:50-10:25

Nonstop1h 35m

Ko Samui

Thu 30/10

16:35-18:10

Nonstop1h 35m

฿5,638

Phuket CityKo Samui

HKT - USM

HKTUSM

Phuket City

Fri 1/8

17:05-18:00

Nonstop0h 55m

Ko Samui

Sat 2/8

12:10-13:10

Nonstop1h 00m

฿5,735

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 15/9

06:50-20:25

1 stop13h 35m

Ko Samui

Sun 5/10

07:00-08:15

Nonstop1h 15m

฿5,800

KrabiKo Samui

KBV - USM

KBVUSM

Krabi

Thu 18/9

14:00-14:50

Nonstop0h 50m

Ko Samui

Thu 2/10

12:30-13:20

Nonstop0h 50m

฿5,962

Chiang MaiKo Samui

CNX - USM

CNXUSM

Chiang Mai

Wed 12/11

12:10-17:40

1 stop5h 30m

Ko Samui

Sun 16/11

08:50-10:40

Nonstop1h 50m

฿6,091

Phuket CityKo Samui

HKT - USM

HKTUSM

Phuket City

Wed 10/9

22:00-07:20

1 stop9h 20m

Ko Samui

Sun 21/9

08:00-09:00

Nonstop1h 00m

฿6,124

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 9/9

18:15-19:45

Nonstop1h 30m

Ko Samui

Tue 16/9

15:25-20:05

1 stop4h 40m

฿6,415

KrabiKo Samui

KBV - USM

KBVUSM

Krabi

Thu 28/8

20:45-07:20

1 stop10h 35m

Ko Samui

Mon 1/9

12:30-13:20

Nonstop0h 50m

฿7,096

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 28 results
1
2
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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, May is the cheapest month in which you can book a flight from Thailand to Ko Samui (average of ฿173). Flying from Thailand to Ko Samui in February is currently the most expensive (average of ฿258). 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 3 July 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 morning tend to be the most expensive. A flight at midday could potentially save you up to 45% 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 29 June 2025.

Travellers seeking maximum savings on their Thailand to Ko Samui flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday mornings 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 3 July 2025.

The most flights from TH0 to USM are scheduled on a Thursday (295 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (254 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 3 July 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
111 reviews
Check prices

Food

7.2

Boarding

7.9

Overall

8.0

Crew

8.5

Entertainment

6.2

Comfort

7.8

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
111 reviews
Bangkok Airways
8.0
Very Good
111 reviews
Check prices

Food

7.2

Boarding

7.9

Overall

8.0

Crew

8.5

Entertainment

6.2

Comfort

7.8

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.

  • 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 Chiang Mai - 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 (95%), Emirates (91%), Finnair (88%).

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

    Looking at all options, your cheapest flight can be booked for ฿2,440. While the most popular route (Bangkok Suvarnabhumi - Ko Samui) can be booked for ฿4,536 on average our data indicates ฿6,860 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, May is the cheapest month in which you can book a flight from Thailand to Ko Samui (average of ฿173). Flying from Thailand to Ko Samui in February is currently the most expensive (average of ฿258). 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 Thailand?

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

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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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿3,922Average฿8,154FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Thailand to Ko Samui?

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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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