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Cheap flights from Ko Samui to Thailand from ฿2,343

USM — BKK
9 Dec — 16 Dec1
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

Fri 13/1111:10 -
Nonstop1h 10m
Fri 13/1117:25 -
Nonstop1h 05m
Deal found 9/11฿3,046
Fri 13/1115:05 -
Nonstop1h 00m
Sun 15/1117:30 -
Nonstop0h 55m
Deal found 9/11฿3,079
Thu 12/1108:15 -
Nonstop1h 00m
Sun 15/1109:45 -
Nonstop0h 55m
Deal found 9/11฿3,146
Wed 11/1111:10 -
Nonstop1h 00m
Fri 13/1111:00 -
Nonstop0h 55m
Deal found 7/11฿3,180
Tue 10/1106:45 -
Nonstop1h 35m
Wed 11/1108:50 -
Nonstop1h 35m
Deal found 6/11฿3,280
Sat 14/1111:10 -
Nonstop1h 10m
Mon 16/1117:25 -
Nonstop1h 05m
Deal found 8/11฿3,414
Tue 10/1111:00 -
Nonstop1h 35m
Sat 14/1118:55 -
Nonstop1h 35m
Deal found 6/11฿4,284
Fri 13/1111:10 -
Nonstop1h 10m
Thu 19/1117:25 -
Nonstop1h 05m
Deal found 9/11฿4,485
Sat 14/1115:05 -
Nonstop1h 00m
Sun 15/1117:30 -
Nonstop0h 55m
Deal found 7/11฿4,519
Mon 16/1106:45 -
Nonstop1h 35m
Mon 16/1118:55 -
Nonstop1h 35m
Deal found 9/11฿4,519
Fri 27/1107:00 -
Nonstop1h 15m
Sun 29/1106:00 -
Nonstop1h 10m
Deal found 9/11฿4,652
Fri 13/1107:00 -
Nonstop1h 15m
Sun 15/1106:00 -
Nonstop1h 10m
Deal found 5/11฿4,719

Find flight deals from Ko Samui to Thailand

Round-trip from

฿3,950

One-way from

฿2,343

Popular in

July

Cheapest in

May

Average price

฿8,067

Good round-trip deal

฿7,986 or less

Good one-way deal

฿3,381 or less
Bangkok Airways
  • Bangkok Airways
  • 5/5-6/5
  • Nonstop
  • 2h 15m total
  • Ko Samui to Thailand
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 15/11-31/12
  • Nonstop
  • 1h 00m total
  • Ko Samui to Thailand
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿45,437 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿6,343 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Ko Samui to Thailand.
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Price to beat on a one-way flight from Ko Samui to Thailand.
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Cheapflights Fare Finder

 
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 SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Thu 21/1

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,912

Ko SamuiRayong

USM Ko Samui - UTP Utapao Rayong Pattaya

USMUTP

Ko Samui

Sat 14/11

11:10-12:20

Nonstop1h 10m

Utapao Rayong Pattaya

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,213

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Sun 22/11

06:45-08:20

Nonstop1h 35m

Bangkok Don Mueang Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,314

Ko SamuiPhuket City

USM Ko Samui - HKT Phuket City

USMHKT

Ko Samui

Sat 19/12

19:00-20:00

Nonstop1h 00m

Phuket City

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,347

Ko SamuiPhuket City

USM Ko Samui - HKT Phuket City

USMHKT

Ko Samui

Sun 22/11

08:15-09:15

Nonstop1h 00m

Phuket City

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,615
Fastest return journey

Ko SamuiKrabi

USM Ko Samui - KBV Krabi

USMKBV

Ko Samui

Tue 15/12

17:00-17:50

Nonstop0h 50m

Krabi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,749

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Wed 16/12

06:45-08:20

Nonstop1h 35m

Bangkok Don Mueang Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,782

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Wed 18/11

06:45-08:20

Nonstop1h 35m

Bangkok Don Mueang Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,782

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Thu 3/12

06:45-08:20

Nonstop1h 35m

Bangkok Don Mueang Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,782

Ko SamuiKrabi

USM Ko Samui - KBV Krabi

USMKBV

Ko Samui

Sat 14/11

12:25-13:15

Nonstop0h 50m

Krabi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,849

Flights are sorted by cheapest return flights first.

Deals found on 7/11

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

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, May is the cheapest month in which you can book a flight from Ko Samui to Thailand (average of ฿5,924). Flying from Ko Samui to Thailand in June is currently the most expensive (average of ฿9,907). 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?

It’s typically best to fly out from Ko Samui to Thailand at midday. Doing so could potentially save you 77% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from Ko Samui to Thailand

The most flights from USM to TH0 are scheduled on a Tuesday (228 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (208 on average).

How often are flights from Ko Samui to Thailand delayed?

About 14% of weekly flights between Ko Samui and Thailand have experienced delays in the past year, with the average delay time being 96 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 evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday 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 14% 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 16 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Thailand

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
132 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.5

Overall

8.1

Food

7.3

Boarding

8.1

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
132 reviews
Bangkok Airways
8.1
Very Good
132 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.5

Overall

8.1

Food

7.3

Boarding

8.1

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

  • 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 ฿2,852. Users have also found prices from ฿6,731 and ฿6,899 on เตอร์กิชแอร์ไลน์ and Thai Airways, 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 - Krabi.

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

    Consider แอร์ฟร้านซ์ (90%), แอร์แอสทาน่า (90%) or เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ (82%) 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 ฿28,282, our data shows the cheapest flight currently is ฿2,743. When looking at the most popular route, (Ko Samui - Bangkok Suvarnabhumi), you can expect to pay ฿3,280 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, May is the cheapest month in which you can book a flight from Ko Samui to Thailand (average of ฿5,924). Flying from Ko Samui to Thailand in June is currently the most expensive (average of ฿9,907). 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

Alternative routes for Ko Samui to Thailand

Chiang Mai to Phuket City flights
Chiang Mai to Krabi flights
Phuket City to Ko Samui flights
Chiang Mai to Ko Samui flights
Phuket City to Chiang Mai flights
Ko Samui to Phuket City flights

Top airline flying from Ko Samui to Thailand

AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿3,344Average฿9,274FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

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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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