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Cheap flights from Ko Samui to Thailand from ฿2,510

USM — BKK
11 Nov — 18 Nov1
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

Thu 5/1118:15 -
Nonstop1h 00m
Sun 8/1117:30 -
Nonstop0h 55m
Deal found 11/10฿3,849
Sat 14/1111:10 -
Nonstop1h 10m
Mon 16/1117:25 -
Nonstop1h 05m
Deal found 10/10฿3,949
Mon 23/1111:10 -
Nonstop1h 00m
Mon 30/1116:35 -
Nonstop0h 55m
Deal found 9/10฿4,284
Thu 5/1121:30 -
Nonstop1h 15m
Sun 8/1107:00 -
Nonstop1h 10m
Deal found 11/10฿4,284
Thu 5/1106:45 -
Nonstop1h 35m
Sun 8/1108:50 -
Nonstop1h 35m
Deal found 11/10฿4,485
Fri 6/1118:15 -
Nonstop1h 00m
Sun 8/1117:30 -
Nonstop0h 55m
Deal found 9/10฿4,619
Tue 10/1111:00 -
Nonstop1h 35m
Tue 17/1118:55 -
Nonstop1h 35m
Deal found 11/10฿4,786
Sun 8/1116:35 -
Nonstop1h 35m
Tue 10/1108:50 -
Nonstop1h 35m
Deal found 9/10฿4,987
Wed 11/1108:15 -
Nonstop1h 00m
Wed 18/1109:45 -
Nonstop0h 55m
Deal found 12/10฿5,255
Sat 17/1012:30 -
Nonstop0h 50m
Mon 19/1018:25 -
Nonstop0h 50m
Deal found 10/10฿5,522
Mon 2/1111:10 -
Nonstop1h 10m
Tue 3/1117:25 -
Nonstop1h 05m
Deal found 11/10฿5,824
Mon 9/1111:10 -
Nonstop1h 10m
Mon 16/1117:25 -
Nonstop1h 05m
Deal found 11/10฿5,924

Find flight deals from Ko Samui to Thailand

Round-trip from

฿3,849

One-way from

฿2,510

Popular in

July

Cheapest in

May

Average price

฿8,033

Good one-way deal

฿3,035 or less
Bangkok Airways
  • Bangkok Airways
  • 5/11-8/11
  • Nonstop
  • 1h 55m total
  • Ko Samui to Thailand
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 19/10-31/12
  • Nonstop
  • 0h 50m total
  • Ko Samui to Thailand
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿44,492 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿6,148 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
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Price to beat on a one-way flight from Ko Samui to Thailand.
Search Deals

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 SamuiPhuket City

USM Ko Samui - HKT Phuket City

USMHKT

Ko Samui

Tue 3/11

18:15-19:15

Nonstop1h 00m

Phuket City

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,811

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Tue 22/12

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,945

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Tue 2/3

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,945

Ko SamuiChiang Mai

USM Ko Samui - CNX Chiang Mai

USMCNX

Ko Samui

Tue 16/3

08:50-10:40

Nonstop1h 50m

Chiang Mai

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,079
Fastest return journey

Ko SamuiKrabi

USM Ko Samui - KBV Krabi

USMKBV

Ko Samui

Sat 17/10

17:00-17:50

Nonstop0h 50m

Krabi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,146

Ko SamuiRayong

USM Ko Samui - UTP Utapao Rayong Pattaya

USMUTP

Ko Samui

Thu 22/10

11:10-12:20

Nonstop1h 10m

Utapao Rayong Pattaya

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,213

Ko SamuiRayong

USM Ko Samui - UTP Utapao Rayong Pattaya

USMUTP

Ko Samui

Tue 3/11

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 - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Wed 21/10

06:00-07:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,247

Ko SamuiPhuket City

USM Ko Samui - HKT Phuket City

USMHKT

Ko Samui

Mon 14/12

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 20/12

19:00-20:00

Nonstop1h 00m

Phuket City

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,347

Flights are sorted by cheapest return flights first.

Deals found on 9/10

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 70% 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 Saturday (279 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (247 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
133 reviews
Check prices

Overall

8.1

Crew

8.6

Food

7.3

Comfort

7.9

Boarding

8.1

Entertainment

6.3

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
133 reviews
Bangkok Airways
8.1
Very Good
133 reviews
Check prices

Overall

8.1

Crew

8.6

Food

7.3

Comfort

7.9

Boarding

8.1

Entertainment

6.3

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. 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 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 ฿2,544. Users have also found prices from ฿5,917 and ฿6,731 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 แอร์แอสทาน่า (98%), สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (92%) or Garuda Indonesia (90%) 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 ฿5,749, our data shows the cheapest flight currently is ฿2,609. When looking at the most popular route, (Ko Samui - Bangkok Suvarnabhumi), you can expect to pay ฿4,552 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 Krabi flights
Phuket City to Ko Samui flights
Chiang Mai to Ko Samui flights

Top airline flying from Ko Samui to Thailand

AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿4,659Average฿9,210FlexibilityNo 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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