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฿2,495+ Direct flights to Ko Samui

This is the cheapest price on a non-stop flight to Ko Samui found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/3. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals to Ko Samui

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Cheapest flights to Ko Samui
Explore the most affordable flight options available to Ko Samui. Find the lowest fares based on data from user searches, with prices last updated on 16 November 2025.

Sun 8/319:15BKK - USM
Nonstop1h 10mBangkok Airways
Tue 17/307:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/11฿5,734
Thu 16/418:15DMK - USM
Nonstop1h 30mBangkok Airways
Sun 10/511:15USM - DMK
Nonstop1h 30mBangkok Airways
Deal found 15/11฿5,767
Wed 4/319:45BKK - USM
Nonstop1h 35mBangkok Airways
Tue 17/307:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/11฿5,799
Mon 20/409:05DMK - USM
Nonstop1h 30mBangkok Airways
Thu 30/406:55USM - DMK
Nonstop1h 30mBangkok Airways
Deal found 15/11฿5,799
Fri 13/306:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 26/309:00USM - BKK
Nonstop1h 30mBangkok Airways
Deal found 15/11฿5,864
Tue 10/308:50DMK - USM
Nonstop1h 35mBangkok Airways
Wed 25/306:45USM - DMK
Nonstop1h 35mBangkok Airways
Deal found 15/11฿5,896
Sun 8/319:15BKK - USM
Nonstop1h 10mBangkok Airways
Mon 16/307:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/11฿5,961
Fri 6/306:00BKK - USM
Nonstop1h 10mBangkok Airways
Wed 18/308:30USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/11฿6,026
Wed 4/319:45BKK - USM
Nonstop1h 35mBangkok Airways
Wed 18/307:55USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 15/11฿6,058
Mon 19/106:30BKK - USM
Nonstop1h 35mBangkok Airways
Thu 2/407:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 14/11฿6,091
Tue 20/106:10BKK - USM
Nonstop1h 35mBangkok Airways
Thu 2/407:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 14/11฿6,123
Sun 11/107:00BKK - USM
Nonstop1h 10mBangkok Airways
Thu 29/107:00USM - BKK
Nonstop1h 15mBangkok Airways
Deal found 16/11฿6,155

Best time to book a flight to Ko Samui

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

 
Use the slider to find non-stop flights to Ko Samui within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 17,341 searches and data was last updated on 16 November 2025.
Use the filters below to find and compare direct flights to Ko Samui that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sat 7/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Sat 21/3

08:30-09:45

Nonstop1h 15m

฿6,123

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Mon 23/2

06:00-07:10

Nonstop1h 10m

Ko Samui

Mon 23/3

07:15-08:50

Nonstop1h 35m

฿6,123

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 5/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Sat 21/3

08:30-09:45

Nonstop1h 15m

฿6,123

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Wed 8/4

20:05-21:35

Nonstop1h 30m

Ko Samui

Tue 28/4

18:55-20:25

Nonstop1h 30m

฿6,285

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Fri 3/4

06:15-07:20

Nonstop1h 05m

Ko Samui

Thu 30/4

09:15-10:30

Nonstop1h 15m

฿6,285

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Thu 12/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Fri 27/3

07:00-08:15

Nonstop1h 15m

฿6,285

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Mon 16/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 25/3

06:45-08:20

Nonstop1h 35m

฿6,285

BangkokKo Samui

BKK - USM

BKKUSM

Bangkok Suvarnabhumi

Sat 7/3

06:00-07:10

Nonstop1h 10m

Ko Samui

Sat 14/3

07:55-09:10

Nonstop1h 15m

฿6,739

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Tue 10/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Wed 18/3

06:45-08:20

Nonstop1h 35m

฿6,739

BangkokKo Samui

DMK - USM

DMKUSM

Bangkok Don Mueang Intl

Mon 16/3

18:55-20:30

Nonstop1h 35m

Ko Samui

Thu 26/3

06:45-08:20

Nonstop1h 35m

฿6,739

Flights are sorted by cheapest return flights first.

Deals found on 15/11

Showing 1-10 of 38 results
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Reviews of airlines flying non-stop to Ko Samui

Get insights into the airlines that provide direct flights 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 16 November 2025.
Read reviews from past customers who have flown Bangkok Airways to Thailand. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very Good
117 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.0

Comfort

7.9

Entertainment

6.2

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
117 reviews
Bangkok Airways
8.0
Very Good
117 reviews
Check prices

Overall

8.0

Crew

8.5

Boarding

8.0

Comfort

7.9

Entertainment

6.2

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.

Temperature and rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature and rainfall totals by month.

USM

Temperature

27 - 29 °C

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

FAQ about direct flights to Ko Samui

Find answers to frequently asked questions about direct flights to Ko Samui to unlock the best deals on Cheapflights.

  • How much are direct flights to Ko Samui?

    On average, a one-way direct flight to Ko Samui will cost users approximately ฿5,419. If you're looking for a direct return flight to Ko Samui, you can expect to pay around ฿8,390.

  • How long is a direct flight to Ko Samui?

    While the flight duration depends heavily on the origin, travellers can expect non-stop flights to Ko Samui to last approximately 1h 17m on average. The quickest direct flight to Ko Samui at this time departs from Phuket City (0h 55m), while the longest leaves from Chiang Mai (1h 45m).

  • What is the best time of year to fly direct to Ko Samui?

    If you're seeking the lowest price on a direct flight to Ko Samui, September is worth consideration, as prices are usually at their lowest, on average. October may be most appealing to users looking for the quietest time to visit Ko Samui, when demand is typically at its lowest.

  • What is the most popular direct flight origin to Ko Samui?

    Currently, the most popular direct flight origin to Ko Samui is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Ko Samui typically costs around ฿6,545.

See more FAQs

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