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Cheap flights from Ko Samui to Thailand from ฿2,742

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
USM — BKK
22 Jun — 29 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ko Samui to Thailand

Enter your travel dates to find the best prices.

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 23 May 2026.

Thu 10/911:10
USM
-
UTP
Nonstop1h 10m
Bangkok Airways
Mon 21/917:20
UTP
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 17/5฿4,113
Fri 18/912:30
USM
-
KBV
Nonstop0h 50m
Bangkok Airways
Tue 22/914:00
KBV
-
USM
Nonstop0h 50m
Bangkok Airways
Deal found 17/5฿4,178
Fri 23/1008:00
USM
-
HKT
Nonstop1h 00m
Bangkok Airways
Wed 28/1012:55
HKT
-
USM
Nonstop0h 55m
Bangkok Airways
Deal found 17/5฿4,211
Mon 21/911:10
USM
-
UTP
Nonstop1h 10m
Bangkok Airways
Tue 6/1017:20
UTP
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 19/5฿4,276
Thu 18/608:00
USM
-
HKT
Nonstop1h 00m
Bangkok Airways
Thu 25/619:30
HKT
-
USM
Nonstop0h 55m
Bangkok Airways
Deal found 17/5฿4,276
Tue 8/911:10
USM
-
UTP
Nonstop1h 10m
Bangkok Airways
Tue 22/917:20
UTP
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 18/5฿4,341
Sun 18/1017:00
USM
-
KBV
Nonstop0h 50m
Bangkok Airways
Wed 28/1013:45
KBV
-
USM
Nonstop0h 45m
Bangkok Airways
Deal found 18/5฿4,929
Thu 1/1017:55
USM
-
HKT
Nonstop1h 00m
Bangkok Airways
Fri 16/1009:35
HKT
-
USM
Nonstop0h 55m
Bangkok Airways
Deal found 19/5฿4,961
Thu 18/608:00
USM
-
HKT
Nonstop1h 00m
Bangkok Airways
Fri 19/619:30
HKT
-
USM
Nonstop0h 55m
Bangkok Airways
Deal found 19/5฿4,994
Thu 18/608:00
USM
-
HKT
Nonstop1h 00m
Bangkok Airways
Mon 22/619:30
HKT
-
USM
Nonstop0h 55m
Bangkok Airways
Deal found 20/5฿5,157
Mon 28/907:50
USM
-
BKK
Nonstop1h 15m
Bangkok Airways
Thu 8/1016:40
BKK
-
USM
Nonstop1h 05m
Bangkok Airways
Deal found 19/5฿5,157
Wed 23/906:55
USM
-
DMK
Nonstop1h 30m
Bangkok Airways
Wed 7/1018:15
DMK
-
USM
Nonstop1h 30m
Bangkok Airways
Deal found 18/5฿5,190

Find 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 23 May 2026.

Round-trip from

฿4,113

One-way from

฿2,742

Popular in

July

Cheapest in

May

Average price

฿5,810

Good round-trip deal

฿5,815 or less

Good one-way deal

฿3,994 or less
Bangkok Airways
  • Bangkok Airways
  • 10/9-21/9
  • Nonstop
  • 2h 15m total
  • Ko Samui to Thailand
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 3/9
  • Nonstop
  • 0h 50m total
  • Ko Samui to Thailand
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿32,102 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿7,229 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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.
Search Deals

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 23 May 2026.
Use the filters below to find and compare flights from Ko Samui to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Ko SamuiRayong

USM - UTP

USMUTP

Ko Samui

Mon 21/9

11:10-12:20

Nonstop1h 10m

Utapao Rayong Pattaya

Tue 6/10

17:20-18:25

Nonstop1h 05m

฿4,276

Ko SamuiPhuket City

USM - HKT

USMHKT

Ko Samui

Thu 18/6

08:00-09:00

Nonstop1h 00m

Phuket City

Mon 22/6

19:30-20:25

Nonstop0h 55m

฿5,190

Ko SamuiRayong

USM - UTP

USMUTP

Ko Samui

Thu 10/9

11:10-12:20

Nonstop1h 10m

Utapao Rayong Pattaya

Mon 21/9

13:00-20:25

1 stop7h 25m

฿5,320

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Fri 12/6

07:50-09:05

Nonstop1h 15m

Bangkok Suvarnabhumi

Mon 15/6

06:05-07:10

Nonstop1h 05m

฿5,549

Ko SamuiBangkok

USM - BKK

USMBKK

Ko Samui

Tue 9/6

17:05-18:35

Nonstop1h 30m

Bangkok Suvarnabhumi

Tue 16/6

06:05-07:10

Nonstop1h 05m

฿5,549

Ko SamuiBangkok

USM - DMK

USMDMK

Ko Samui

Wed 9/9

06:55-08:25

Nonstop1h 30m

Bangkok Don Mueang Intl

Thu 10/9

18:15-19:45

Nonstop1h 30m

฿6,495

Ko SamuiKrabi

USM - KBV

USMKBV

Ko Samui

Sun 18/10

15:50-20:00

1 stop4h 10m

Krabi

Wed 28/10

13:45-14:30

Nonstop0h 45m

฿6,691

Ko SamuiPhuket City

USM - HKT

USMHKT

Ko Samui

Thu 18/6

08:00-09:00

Nonstop1h 00m

Phuket City

Sun 21/6

17:05-18:00

Nonstop0h 55m

฿6,691

Ko SamuiPhuket City

USM - HKT

USMHKT

Ko Samui

Fri 13/11

15:50-16:50

Nonstop1h 00m

Phuket City

Sun 15/11

11:00-11:55

Nonstop0h 55m

฿6,691

Ko SamuiPhuket City

USM - HKT

USMHKT

Ko Samui

Tue 9/6

15:25-16:25

Nonstop1h 00m

Phuket City

Thu 11/6

19:30-20:25

Nonstop0h 55m

฿6,691

Flights are sorted by cheapest return flights first.

Deals found on 21/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from Ko Samui to Thailand (average of ฿1,697). Flying from Ko Samui to Thailand in June is currently the most expensive (average of ฿4,537). 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 23 May 2026.

It’s typically best to fly out from Ko Samui to Thailand at midday. Doing so could potentially save you 59% on the flight price compared to flying in the evening, which is usually more expensive.

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 23 May 2026.

The most flights from USM to TH0 are scheduled on a Thursday (304 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (273 on average).

How often are flights from Ko Samui to Thailand delayed?

About 12% of weekly flights between Ko Samui and Thailand have experienced delays in the past year, with the average delay time being 92 minutes.

What is the most punctual flight time for Ko Samui to Thailand flights?

Historically, flights departing in the morning 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?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ko Samui to Thailand flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from Ko Samui to Thailand?

The price you pay for your flight from Ko Samui to Thailand may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 23 May 2026.
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
8.1
Very Good
128 reviews
Check prices

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

8.1

Crew

8.5

Entertainment

6.2

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

Great short flight and free really good snack and water which I didn’t expect
Bangkok Airways
8.1
Very Good
128 reviews
Bangkok Airways
8.1
Very Good
128 reviews
Check prices

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

8.1

Crew

8.5

Entertainment

6.2

Reviews

1 / 8
10.0
Excellent

Agata,Feb 2026

USM - DMK

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 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 10m. Fly via Bangkok Airways to get the fastest option. Airlines will cover a distance of 362 km. All flights are typically direct.

  • What are the cheapest airlines to fly from Ko Samui to Thailand one-way?

    For one-way options, check prices for Bangkok Airways. According to our data, you can fly for as low as ฿2,728. Users have also found prices from ฿6,551 and ฿6,904 on Thai Airways and เตอร์กิชแอร์ไลน์, respectively.

  • 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 - Phuket City.

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

    Consider แอร์ฟร้านซ์ (98%), สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (96%) or เคแอลเอ็ม รอยัล ดัตช์ 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 ฿36,523, our data shows the cheapest flight currently is ฿3,267. When looking at the most popular route, (Ko Samui - Bangkok Suvarnabhumi), you can expect to pay ฿5,157 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, September is the cheapest month in which you can book a flight from Ko Samui to Thailand (average of ฿1,697). Flying from Ko Samui to Thailand in June is currently the most expensive (average of ฿4,537). 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.
Chiang Mai to Phuket City flights
Chiang Mai to Krabi 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 23 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿2,994Average฿10,443FlexibilityNo 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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Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Thailand?

Millions of users choose and trust Cheapflights to book the best flight deals from Ko Samui to Thailand 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 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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