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Cheap flights from Ko Samui to Bangkok from ฿4,568

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
USM — BKK
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Ko Samui to Bangkok are usually found in May or February, booked 90 days in advance, depart on a Monday or Friday and return on a Thursday

Cheap flight deals from Ko Samui to Bangkok

Enter your travel dates to find the best prices.

Cheapest flights from Ko Samui to Bangkok
Explore the most affordable flight options available from Ko Samui to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2026.

Wed 16/907:50 -
Nonstop1h 15m
Wed 23/906:05 -
Nonstop1h 05m
Deal found 13/8฿5,329
Wed 9/907:50 -
Nonstop1h 15m
Fri 11/906:05 -
Nonstop1h 05m
Deal found 10/8฿5,363
Wed 9/907:50 -
Nonstop1h 15m
Wed 16/906:05 -
Nonstop1h 05m
Deal found 11/8฿5,429
Thu 12/1116:35 -
Nonstop1h 35m
Mon 16/1118:55 -
Nonstop1h 35m
Deal found 14/8฿5,429
Mon 9/1107:00 -
Nonstop1h 15m
Wed 11/1106:10 -
Nonstop1h 35m
Deal found 10/8฿5,462
Wed 16/907:50 -
Nonstop1h 15m
Sun 20/906:05 -
Nonstop1h 05m
Deal found 12/8฿5,561
Tue 22/906:00 -
Nonstop1h 15m
Wed 23/906:05 -
Nonstop1h 05m
Deal found 14/8฿5,627
Thu 27/807:50 -
Nonstop1h 15m
Sun 30/814:15 -
Nonstop1h 05m
Deal found 14/8฿5,660
Wed 23/906:00 -
Nonstop1h 15m
Sat 10/1006:05 -
Nonstop1h 05m
Deal found 11/8฿5,727
Fri 25/1207:00 -
Nonstop1h 15m
Tue 5/106:00 -
Nonstop1h 10m
Deal found 13/8฿5,760
Mon 9/1106:45 -
Nonstop1h 35m
Mon 16/1118:55 -
Nonstop1h 35m
Deal found 10/8฿5,793
Tue 29/907:50 -
Nonstop1h 15m
Tue 6/1006:05 -
Nonstop1h 05m
Deal found 14/8฿5,859

Find flight deals from Ko Samui to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Ko Samui (USM) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 August 2026.

Round-trip from

฿5,263

One-way from

฿4,568

Popular in

July

Cheapest in

May

Average price

฿9,136
Bangkok Airways
  • Bangkok Airways
  • 30/1-13/2
  • Nonstop
  • 2h 25m total
  • Ko Samui to Bangkok
Search Deals
18/10
  • 18/10
  • 1 total stop
  • 6h 05m total
  • Ko Samui to Bangkok
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿43,530 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿6,388 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ko Samui to Bangkok 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 15 August 2026.
Use the filters below to find and compare flights from Ko Samui to Bangkok 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

Wed 28/10

07:00-08:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Wed 28/10

18:40-19:50

Nonstop1h 10m

฿5,859

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Wed 9/9

17:00-22:05

1 stop5h 05m

Bangkok Suvarnabhumi

Sun 13/9

06:05-07:10

Nonstop1h 05m

฿6,322
Fastest return journey

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Fri 18/9

06:00-07:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 20/9

06:05-07:10

Nonstop1h 05m

฿6,455

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Tue 22/9

06:00-07:15

Nonstop1h 15m

Bangkok Suvarnabhumi

Sat 10/10

06:05-07:10

Nonstop1h 05m

฿6,521

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Thu 17/9

08:45-10:00

Nonstop1h 15m

Bangkok Suvarnabhumi

Sun 20/9

06:05-07:10

Nonstop1h 05m

฿6,786

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Thu 17/9

17:00-22:05

1 stop5h 05m

Bangkok Suvarnabhumi

Sun 20/9

06:05-07:10

Nonstop1h 05m

฿6,951

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Thu 17/9

06:55-08:25

Nonstop1h 30m

Bangkok Don Mueang Intl

Sun 20/9

18:15-19:45

Nonstop1h 30m

฿7,282

Ko SamuiBangkok

USM Ko Samui - BKK Bangkok Suvarnabhumi

USMBKK

Ko Samui

Wed 23/9

12:10-23:30

1 stop11h 20m

Bangkok Suvarnabhumi

Sat 10/10

06:05-07:10

Nonstop1h 05m

฿7,349

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Fri 18/9

06:55-08:25

Nonstop1h 30m

Bangkok Don Mueang Intl

Sun 20/9

18:15-19:45

Nonstop1h 30m

฿7,647

Ko SamuiBangkok

USM Ko Samui - DMK Bangkok Don Mueang Intl

USMDMK

Ko Samui

Fri 18/9

19:00-23:30

1 stop4h 30m

Bangkok Don Mueang Intl

Sun 20/9

16:25-20:25

1 stop4h 00m

฿7,779

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight from Ko Samui to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok 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 Bangkok

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

Currently, May is the cheapest month in which you can book a flight from Ko Samui to Bangkok (average of ฿5,859). Flying from Ko Samui to Bangkok in July is currently the most expensive (average of ฿10,460). 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 BKK?

Find hourly flight availability from Ko Samui to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 74% on flights from Ko Samui to Bangkok by exploring options for tickets in the morning.

Weekly flight availability from Ko Samui to Bangkok

Explore weekly flight availability from Ko Samui to Bangkok. 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 15 August 2026.

The most flights from USM to TH1 are scheduled on a Friday (348 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (241 on average).

How much does it cost for a return flight from Ko Samui to Bangkok?

Airfare is below average for this route at the moment.
Ko Samui to Bangkok flights typically cost between ฿5,727 and ฿11,354 in January.
The cheapest return price found within the last 5 days was ฿5,263 on Bangkok Airways (30 Jan–13 Feb).

How often are flights from Ko Samui to Bangkok delayed?

About 13% of weekly flights between Ko Samui and Bangkok 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 Bangkok 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 Bangkok flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ko Samui to Bangkok. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated 15 August 2026.
Get a feel of what it's like to fly with Bangkok Airways from Ko Samui to Bangkok 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
8.1
Very Good
133 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.6

Boarding

8.1

Overall

8.1

Food

7.3

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

Entertainment

6.3

Comfort

7.9

Crew

8.6

Boarding

8.1

Overall

8.1

Food

7.3

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

Find useful and relevant information for your journey from Ko Samui to Bangkok. 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 Bangkok?

    For a flight from Ko Samui to Bangkok, you will be flying from Ko Samui. Ko Samui (USM) is just 3.3 km from the centre of the city. Ko Samui is the only Ko Samui airport and it handles 264 outbound flights to Bangkok per day. 1 airline has flights to Bangkok from Ko Samui on a regular basis.

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

    Airlines like Bangkok Airways fly from Ko Samui to Bangkok in about 1h 15m. The time it takes to get you to your destination is usually consistent. The distance between Ko Samui and Bangkok is about 467 km. All flights are typically direct.

  • What is the cheapest airline to fly from Ko Samui to Bangkok round-trip?

    According to our current data, Bangkok Airways (฿4,361), offers the cheapest pricing from Ko Samui to Bangkok. Bangkok Airways is currently priced 47% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as ฿2,831 on Bangkok Airways. Other airlines that offer cheap prices include Thai Airways from ฿5,852 and เตอร์กิชแอร์ไลน์ from ฿6,657 one-way.

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

    The top 3 most reliable airlines when flying from Ko Samui to Bangkok are แอร์แอสทาน่า (97%), สวิส อินเตอร์เนชั่นแนล แอร์ไลน์ (94%) and เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ (93%).

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

    The cheapest flight price from Ko Samui to Bangkok is ฿3,682. On average you can expect to pay ฿6,707. The most popular route, (Ko Samui - Bangkok Suvarnabhumi), can usually be booked for ฿5,263.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Ko Samui to Bangkok (average of ฿5,859). Flying from Ko Samui to Bangkok in July is currently the most expensive (average of ฿10,460). 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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Top airline flying from Ko Samui to Bangkok

Discover the top airline that operate flights from Ko Samui to Bangkok. 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 15 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿4,361Average฿9,588FlexibilityNo 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 Bangkok?

When you search for this flight from Ko Samui to Bangkok, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Bangkok?

Millions of users choose and trust Cheapflights to book the best flight deals from Ko Samui to Bangkok 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 Bangkok with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ko Samui to Bangkok, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Ko Samui to Bangkok 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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