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Cheap flights from Bangkok to Ko Samui from ฿2,926

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 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — USM
10 Jan — 17 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Bangkok to Ko Samui are usually found in November or September, booked 68 days in advance, depart on a Sunday or Friday and return on a Monday

Cheap flight deals from Bangkok to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Ko Samui
Explore the most affordable flight options available from Bangkok to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 December 2025.

Sat 13/1206:20BKK - USM
Nonstop1h 10mBangkok Airways
Sun 21/1207:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 10/12฿6,489
Fri 19/1206:30BKK - USM
Nonstop1h 35mBangkok Airways
Sun 21/1207:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 10/12฿6,648
Wed 17/1206:10BKK - USM
Nonstop1h 35mBangkok Airways
Thu 25/1207:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 9/12฿7,252
Wed 17/1206:30BKK - USM
Nonstop1h 35mBangkok Airways
Wed 24/1220:20USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 10/12฿7,316
Sat 20/1206:00BKK - USM
Nonstop1h 10mBangkok Airways
Sun 21/1207:15USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 9/12฿7,411
Fri 12/1206:30BKK - USM
Nonstop1h 35mBangkok Airways
Mon 15/1207:55USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 10/12฿7,443
Fri 19/1206:30BKK - USM
Nonstop1h 35mBangkok Airways
Thu 25/1207:45USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 9/12฿7,538
Sun 14/1206:10BKK - USM
Nonstop1h 35mBangkok Airways
Mon 15/1207:55USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 9/12฿7,570
Sat 13/1215:45BKK - USM
Nonstop1h 35mBangkok Airways
Wed 17/1219:35USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 11/12฿7,602
Sat 13/1215:45BKK - USM
Nonstop1h 35mBangkok Airways
Mon 15/1219:35USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 11/12฿7,634
Tue 16/1206:30BKK - USM
Nonstop1h 35mBangkok Airways
Wed 24/1207:15USM - BKK
Nonstop1h 35mBangkok Airways
Deal found 10/12฿7,761
Sat 13/1218:55DMK - USM
Nonstop1h 35mBangkok Airways
Thu 25/1206:45USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 11/12฿8,111

Find flight deals from Bangkok to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Bangkok (TH1) to Ko Samui (USM). 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 11 December 2025.

Round-trip from

฿5,853

One-way from

฿2,926

Popular in

January

Cheapest in

November

Average price

฿8,652
Bangkok Airways
  • Bangkok Airways
  • 25/4-10/5
  • Nonstop
  • 3h 00m total
  • Bangkok to Ko Samui
Search Deals
Bangkok Airways
  • Bangkok Airways
  • 18/4
  • Nonstop
  • 1h 30m total
  • Bangkok to Ko Samui
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿35,366 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿3,694 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Bangkok to Ko Samui 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 11 December 2025.
Use the filters below to find and compare flights from Bangkok to Ko Samui that are best for you.

Fly from

Bangkok

Fly to

Ko Samui

Route

Depart

Return

Price

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Wed 11/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 18/3

06:45-08:20

Nonstop1h 35m

฿5,948

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sat 14/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Sat 28/3

07:15-08:50

Nonstop1h 35m

฿6,075

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 1/5

06:05-07:10

Nonstop1h 05m

Ko Samui

Sat 16/5

15:25-16:40

Nonstop1h 15m

฿6,266

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Tue 5/5

14:05-15:10

Nonstop1h 05m

Ko Samui

Wed 13/5

06:00-07:15

Nonstop1h 15m

฿6,266

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 19/5

13:25-14:55

Nonstop1h 30m

Ko Samui

Thu 21/5

06:55-08:25

Nonstop1h 30m

฿6,266

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sat 14/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Sat 21/3

07:55-09:10

Nonstop1h 15m

฿6,393

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sun 15/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Fri 20/3

07:15-08:50

Nonstop1h 35m

฿6,393

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Tue 17/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Sat 21/3

07:55-09:10

Nonstop1h 15m

฿6,393

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 28/4

09:05-10:35

Nonstop1h 30m

Ko Samui

Sun 3/5

06:55-08:25

Nonstop1h 30m

฿6,870

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 23/1

06:00-07:10

Nonstop1h 10m

Ko Samui

Sun 25/1

19:00-20:15

Nonstop1h 15m

฿7,029

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 44 results
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Best time to book a flight from Bangkok to Ko Samui

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

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

Use this chart to determine the optimal time to book a return flight from Bangkok to Ko Samui. Price data was last updated on 5 December 2025.

The best time to book flights from Bangkok to Ko Samui is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June is the cheapest month in which you can book a flight from Bangkok to Ko Samui (average of ฿668). Flying from Bangkok to Ko Samui in December is currently the most expensive (average of ฿1,654). 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 BKK to USM?

Find hourly flight availability from Bangkok to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 December 2025.

It’s optimal to fly from Bangkok to Ko Samui in the evening. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at midday.

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

Use this chart to determine the cheapest time to fly return from Bangkok to Ko Samui. Price data was last updated on 6 December 2025.

Travellers seeking maximum savings on their Bangkok to Ko Samui flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Bangkok to Ko Samui

Explore weekly flight availability from Bangkok to Ko Samui. 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 11 December 2025.

The most flights from TH1 to USM are scheduled on a Thursday (359 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (325 on average).

How often are flights from Bangkok to Ko Samui delayed?

About 17% of weekly flights between Bangkok and Ko Samui have experienced delays in the past year, with the average delay time being 93 minutes.

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

Historically, flights departing at night 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?

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

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

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. 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 Ko Samui. Reviews last updated 11 December 2025.
Get a feel of what it's like to fly with Bangkok Airways from Bangkok to Ko Samui 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
8.0
Very Good
118 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

6.3

Boarding

8.0

Food

7.3

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
118 reviews
Bangkok Airways
8.0
Very Good
118 reviews
Check prices

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

6.3

Boarding

8.0

Food

7.3

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 Bangkok to Ko Samui. 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 into for flights to Ko Samui from Bangkok?

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from Bangkok. On average, Ko Samui has 343 inbound flights from Bangkok per day from 1 airline. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre.

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

    Bangkok Airways can get you from Bangkok to Ko Samui in just under 1h 35m. Your travel time will be generally consistent. Bangkok and Ko Samui are separated by a distance of 489 km. All flights are typically direct.

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

    According to our current data, Bangkok Airways (฿4,311), offers the cheapest pricing from Bangkok to Ko Samui. Bangkok Airways is 43% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Before booking your flight to Ko Samui from Bangkok, have a look at the most reliable airlines to get you to your destination on time: แอร์ฟร้านซ์ (86%), โอมานแอร์ (83%), Japan Airlines( 82%).

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

    The cheapest flight price from Bangkok to Ko Samui is ฿2,885. On average you can expect to pay ฿7,182. The most popular route, (Bangkok Suvarnabhumi - Ko Samui), can usually be booked for ฿4,517.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Bangkok to Ko Samui (average of ฿668). Flying from Bangkok to Ko Samui in December is currently the most expensive (average of ฿1,654). 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

Travelling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bangkok to Ko Samui

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

Top airline flying from Bangkok to Ko Samui

Discover the top airline that operate flights from Bangkok to Ko Samui. 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 11 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿4,244Average฿7,920FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Bangkok to Ko Samui flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ko Samui from Bangkok.

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

Need flexible booking options for your flight to Ko Samui from Bangkok? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ko Samui from Bangkok today and book when prices fit your budget.

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