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Cheap flights from Bangkok to Ko Samui from ฿2,530

BKK — USM
4 Dec — 11 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Bangkok to Ko Samui are usually found in October or November, booked 88 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Bangkok to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Bangkok to Ko Samui

Fri 6/1106:00 -
Nonstop1h 10m
Tue 24/1107:00 -
Nonstop1h 15m
Deal found 3/11฿5,331
Thu 5/1106:00 -
Nonstop1h 10m
Sun 8/1107:00 -
Nonstop1h 15m
Deal found 30/10฿5,364
Thu 5/1108:50 -
Nonstop1h 35m
Sun 8/1116:35 -
Nonstop1h 35m
Deal found 30/10฿5,364
Fri 6/1106:50 -
1 stop10h 40m
Sun 8/1108:30 -
Nonstop1h 15m
Deal found 31/10฿5,398
Sat 7/1106:00 -
Nonstop1h 10m
Thu 12/1121:30 -
Nonstop1h 15m
Deal found 1/11฿5,499
Thu 5/1108:50 -
Nonstop1h 35m
Sun 15/1106:45 -
Nonstop1h 35m
Deal found 1/11฿5,499
Fri 6/1106:00 -
Nonstop1h 10m
Sun 8/1107:00 -
Nonstop1h 15m
Deal found 4/11฿5,533
Wed 4/1106:25 -
Nonstop1h 10m
Sun 8/1107:00 -
Nonstop1h 15m
Deal found 3/11฿5,567
Mon 2/1118:55 -
Nonstop1h 35m
Thu 5/1116:35 -
Nonstop1h 35m
Deal found 31/10฿5,567
Fri 6/1106:00 -
Nonstop1h 10m
Sat 7/1107:55 -
Nonstop1h 15m
Deal found 1/11฿5,634
Thu 12/1106:00 -
Nonstop1h 10m
Sun 22/1107:55 -
Nonstop1h 15m
Deal found 3/11฿5,668
Wed 11/1106:00 -
Nonstop1h 10m
Sat 14/1121:30 -
Nonstop1h 15m
Deal found 3/11฿5,702

Find flight deals from Bangkok to Ko Samui

Round-trip from

฿5,331

One-way from

฿2,530

Popular in

February

Cheapest in

October

Average price

฿7,153
Bangkok Airways
  • Bangkok Airways
  • 6/11-30/11
  • Nonstop
  • 2h 25m total
  • Bangkok to Ko Samui
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Bangkok Airways
  • Bangkok Airways
  • 14/2-31/12
  • Nonstop
  • 1h 10m total
  • Bangkok to Ko Samui
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿44,658 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿4,803 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Bangkok to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BangkokKo Samui

BKK Bangkok Suvarnabhumi - USM Ko Samui

BKKUSM

Bangkok Suvarnabhumi

Mon 12/4

06:05-07:10

Nonstop1h 05m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,733

BangkokKo Samui

BKK Bangkok Suvarnabhumi - USM Ko Samui

BKKUSM

Bangkok Suvarnabhumi

Thu 1/4

06:05-07:10

Nonstop1h 05m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,733

BangkokKo Samui

BKK Bangkok Suvarnabhumi - USM Ko Samui

BKKUSM

Bangkok Suvarnabhumi

Wed 11/11

06:00-07:10

Nonstop1h 10m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿2,733

BangkokKo Samui

BKK Bangkok Suvarnabhumi - USM Ko Samui

BKKUSM

Bangkok Suvarnabhumi

Wed 24/2

19:45-21:20

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,104

BangkokKo Samui

BKK Bangkok Suvarnabhumi - USM Ko Samui

BKKUSM

Bangkok Suvarnabhumi

Mon 8/3

19:45-21:20

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,171

BangkokKo Samui

DMK Bangkok Don Mueang Intl - USM Ko Samui

DMKUSM

Bangkok Don Mueang Intl

Mon 15/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,171

BangkokKo Samui

DMK Bangkok Don Mueang Intl - USM Ko Samui

DMKUSM

Bangkok Don Mueang Intl

Wed 17/2

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,543

BangkokKo Samui

DMK Bangkok Don Mueang Intl - USM Ko Samui

DMKUSM

Bangkok Don Mueang Intl

Tue 16/2

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,543

BangkokKo Samui

DMK Bangkok Don Mueang Intl - USM Ko Samui

DMKUSM

Bangkok Don Mueang Intl

Tue 2/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,610

BangkokKo Samui

DMK Bangkok Don Mueang Intl - USM Ko Samui

DMKUSM

Bangkok Don Mueang Intl

Wed 17/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

฿3,610

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Showing 1-10 of 47 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Bangkok to Ko Samui

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

Currently, October is the cheapest month in which you can book a flight from Bangkok to Ko Samui (average of ฿6,984). Flying from Bangkok to Ko Samui in February is currently the most expensive (average of ฿10,459). 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?

It’s optimal to fly from Bangkok to Ko Samui in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

Weekly flight availability from Bangkok to Ko Samui

The most flights from TH1 to USM are scheduled on a Monday (226 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (210 on average).

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

Airfare is below average for this route at the moment.
Bangkok to Ko Samui flights typically cost between ฿5,634 and ฿8,907 in May.
The cheapest return price found within the last 5 days was ฿5,297 on Bangkok Airways (1 May–2 May).

How often are flights from Bangkok to Ko Samui delayed?

About 19% of weekly flights between Bangkok and Ko Samui have experienced delays in the past year, with the average delay time being 97 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 early afternoon 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 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 19% of flights being delayed.

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

The best time to book flights from Bangkok to Ko Samui is 87 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 day to fly from Bangkok to Ko Samui?

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

Reviews of airlines servicing Ko Samui

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
8.1
Very Good
132 reviews
Check prices

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

6.3

Overall

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

Boarding

8.1

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

6.3

Overall

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 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 216 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 10m. Your travel time will be generally consistent. Bangkok and Ko Samui are separated by a distance of 467 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 (฿4,127), offers the cheapest pricing from Bangkok to Ko Samui. Bangkok Airways is 53% 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%), Cathay Pacific (76%), Japan Airlines( 71%).

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

    The cheapest flight price from Bangkok to Ko Samui is ฿2,607. On average you can expect to pay ฿4,436. The most popular route, (Bangkok Suvarnabhumi - Ko Samui), can usually be booked for ฿3,475.

  • 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, October is the cheapest month in which you can book a flight from Bangkok to Ko Samui (average of ฿6,984). Flying from Bangkok to Ko Samui in February is currently the most expensive (average of ฿10,459). 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
Khanom

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Bangkok to Ko Samui

AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest฿4,127Average฿8,983FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights

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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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