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Cheap flights from Ko Samui to Thailand from ฿2,671

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — BKK
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Ko Samui to Thailand

Keep the following information in mind while searching for Ko Samui to Thailand flight deals. Data was last updated 16 September 2025.

Round-trip from

฿4,007

One-way from

฿2,671

Popular in

March

Cheapest in

October

Average price

฿6,933

Good round-trip deal

฿5,401 or less

Good one-way deal

฿2,744 or less
Bangkok Airways
  • Bangkok Airways
  • 16/10-19/10
  • Nonstop
  • 1h 55m total
  • Ko Samui to Thailand
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 25/9
  • Nonstop
  • 1h 15m total
  • Ko Samui to Thailand
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿23,810 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (฿5,543 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Ko Samui to Thailand.
Search Deals
Price to beat on a one-way flight from Ko Samui to Thailand.
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Find flight deals from Ko Samui to Thailand

Cheapest flights from Ko Samui to Thailand
Explore the most affordable flight options available from Ko Samui to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Thu 16/1019:00USM - HKT
Nonstop1h 00mBangkok Airways
Sun 19/1019:30HKT - USM
Nonstop0h 55mBangkok Airways
Deal found 15/9฿4,007
Fri 24/1019:00USM - HKT
Nonstop1h 00mBangkok Airways
Mon 27/1011:00HKT - USM
Nonstop0h 55mBangkok Airways
Deal found 15/9฿4,325
Thu 23/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Sun 26/1006:00BKK - USM
Nonstop1h 10mBangkok Airways
Deal found 15/9฿4,548
Thu 23/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Fri 31/1006:00BKK - USM
Nonstop1h 10mBangkok Airways
Deal found 15/9฿4,580
Thu 20/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Fri 28/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Deal found 15/9฿4,611
Tue 25/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Thu 27/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Deal found 15/9฿4,802
Thu 16/1008:00USM - HKT
Nonstop1h 00mBangkok Airways
Sat 25/1009:35HKT - USM
Nonstop0h 55mBangkok Airways
Deal found 15/9฿4,961
Tue 25/1107:00USM - BKK
Nonstop1h 15mBangkok Airways
Wed 26/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Deal found 15/9฿4,993
Thu 30/1007:00USM - BKK
Nonstop1h 15mBangkok Airways
Thu 6/1106:00BKK - USM
Nonstop1h 10mBangkok Airways
Deal found 15/9฿5,025
Fri 17/1019:00USM - HKT
Nonstop1h 00mBangkok Airways
Sat 25/1009:35HKT - USM
Nonstop0h 55mBangkok Airways
Deal found 15/9฿5,152
Sat 22/1106:45USM - DMK
Nonstop1h 35mBangkok Airways
Mon 24/1118:55DMK - USM
Nonstop1h 35mBangkok Airways
Deal found 14/9฿5,343
Thu 30/1008:15USM - HKT
Nonstop1h 00mBangkok Airways
Thu 6/1116:35HKT - USM
Nonstop0h 55mBangkok Airways
Deal found 15/9฿5,534

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to Thailand 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 16 September 2025.
Use the filters below to find and compare flights from Ko Samui to Thailand that are best for you.

Fly from

Ko Samui

Fly to

Thailand

Route

Depart

Return

Price

Ko SamuiPhuket City

USM - HKT

USMHKT

Ko Samui

Thu 16/10

19:00-20:00

Nonstop1h 00m

Phuket City

Sun 19/10

19:30-20:25

Nonstop0h 55m

฿4,007

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Wed 29/10

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 2/11

05:00-06:10

Nonstop1h 10m

฿4,548

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Sun 23/11

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Mon 1/12

06:00-07:10

Nonstop1h 10m

฿4,548

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 23/10

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 26/10

06:00-07:10

Nonstop1h 10m

฿4,548

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Sat 22/11

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Mon 1/12

06:00-07:10

Nonstop1h 10m

฿4,548

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Wed 15/10

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Fri 17/10

06:15-07:20

Nonstop1h 05m

฿4,580

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 6/11

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 9/11

06:00-07:10

Nonstop1h 10m

฿4,580

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Thu 23/10

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Mon 27/10

06:00-07:10

Nonstop1h 10m

฿4,580

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Fri 17/10

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 19/10

06:15-07:20

Nonstop1h 05m

฿4,580

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Wed 11/2

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Fri 13/2

06:00-07:10

Nonstop1h 10m

฿4,580

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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

Have a flexible travel schedule? Discover the best time to fly to Thailand from Ko Samui 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 Ko Samui to Thailand

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

Currently, June is the cheapest month in which you can book a flight from Ko Samui to Thailand (average of ฿57). Flying from Ko Samui to Thailand in December is currently the most expensive (average of ฿79). 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 USM to TH?

Find hourly flight availability from Ko Samui to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

When flying from Ko Samui to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Use this chart to determine the cheapest time to fly return from Ko Samui to Thailand. Price data was last updated on 14 September 2025.

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

Explore weekly flight availability from Ko Samui to Thailand. 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 16 September 2025.

The most flights from USM to TH0 are scheduled on a Tuesday (299 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (273 on average).

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated 16 September 2025.
See what other customers who have flown with Bangkok Airways from Ko Samui to Thailand have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very Good
113 reviews
Check prices

Crew

8.5

Entertainment

6.2

Boarding

8.0

Food

7.2

Overall

8.0

Comfort

7.9

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
113 reviews
Bangkok Airways
8.0
Very Good
113 reviews
Check prices

Crew

8.5

Entertainment

6.2

Boarding

8.0

Food

7.2

Overall

8.0

Comfort

7.9

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 Ko Samui to Thailand. 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 from for flights from Ko Samui to Thailand?

    For a flight from Ko Samui to Thailand, you will be flying from Ko Samui. Ko Samui (USM) is just 3.3 km from the centre of the city.

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

    There are many flights that can get you from Ko Samui to Thailand in 1h. Fly via Bangkok Airways to get the fastest option. Airlines will cover a distance of 249 km. All flights are typically direct.

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

    The most popular flight routes from Ko Samui to Thailand are Ko Samui - Bangkok Suvarnabhumi, Ko Samui - Bangkok Don Mueang Intl and Ko Samui - Chiang Mai.

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

    Consider เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ (98%), แอร์ฟร้านซ์ (97%) or สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (96%) when booking your flight. These represent the most reliable airlines when flying from Ko Samui to Thailand.

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

    While on average a flight from Ko Samui to Thailand is generally ฿27,419, our data shows the cheapest flight currently is ฿2,352. When looking at the most popular route, (Ko Samui - Bangkok Suvarnabhumi), you can expect to pay ฿4,548 for that flight.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Ko Samui to Thailand (average of ฿57). Flying from Ko Samui to Thailand in December is currently the most expensive (average of ฿79). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ko Samui to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
Phuket City to Ko Samui flights

Top airline flying from Ko Samui to Thailand

Discover the top airline that operate flights from Ko Samui to Thailand. 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿3,784Average฿8,212FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

Fly with Cheapflights

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

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

Yes! Cheapflights helps users easily find flights from Ko Samui to Thailand with no change fees.

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

Yes, Cheapflights offers price alerts on Ko Samui to Thailand flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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