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HK$2,083+ 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 7-11. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

Fri 31-1017:05HKG - USM
Nonstop3h 30mBangkok Airways
Thu 6-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-10HK$3,583
Fri 14-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Mon 17-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-10HK$3,590
Wed 19-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Fri 28-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 17-10HK$3,606
Thu 20-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Tue 25-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-10HK$3,746
Sun 2-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Thu 6-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-10HK$3,793
Tue 18-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Wed 26-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 17-10HK$3,800
Mon 17-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Fri 28-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 17-10HK$3,808
Wed 19-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Tue 25-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 17-10HK$3,839
Thu 6-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Tue 11-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-10HK$3,886
Thu 20-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Fri 28-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 17-10HK$3,894
Tue 18-1117:05HKG - USM
Nonstop3h 30mBangkok Airways
Sat 22-1111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 17-10HK$3,932

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 70,647 searches and data was last updated on 17 October 2025.
Use the filters below to find and compare direct flights to Ko Samui that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 31-10

17:05-19:35

Nonstop3h 30m

Ko Samui

Thu 6-11

11:40-15:55

Nonstop3h 15m

HK$3,583

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 15-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 22-11

11:40-15:55

Nonstop3h 15m

HK$3,590

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 29-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 6-12

11:40-15:55

Nonstop3h 15m

HK$3,590

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 19-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 28-11

11:40-15:55

Nonstop3h 15m

HK$3,606

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 19-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 26-11

11:40-15:55

Nonstop3h 15m

HK$3,606

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 19-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 22-11

11:40-15:55

Nonstop3h 15m

HK$3,793

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 18-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Sun 23-11

11:40-15:55

Nonstop3h 15m

HK$3,808

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 18-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 28-11

11:40-15:55

Nonstop3h 15m

HK$3,808

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 21-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 26-11

11:40-15:55

Nonstop3h 15m

HK$3,808

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 21-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Sun 23-11

11:40-15:55

Nonstop3h 15m

HK$3,808

Flights are sorted by cheapest return flights first.

Deals found on 16-10

Showing 1-10 of 22 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 17 October 2025.
See what other customers who have flown with Bangkok Airways and Cathay Pacific to Thailand have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very Good
114 reviews
Check prices

Food

7.2

Entertainment

6.1

Comfort

7.9

Overall

8.0

Boarding

8.0

Crew

8.5

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
114 reviews
Bangkok Airways
8.0
Very Good
114 reviews
Check prices

Food

7.2

Entertainment

6.1

Comfort

7.9

Overall

8.0

Boarding

8.0

Crew

8.5

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.
Cathay Pacific
7.6
Good
1,028 reviews
Bangkok Airways
8.0
Very Good
114 reviews
Check prices

Food

7.2

Entertainment

6.1

Comfort

7.9

Overall

8.0

Boarding

8.0

Crew

8.5

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.

  • Which airlines fly direct to Ko Samui?

    At the moment, Bangkok Airways, Cathay Pacific offer direct flights to Ko Samui. Bangkok Airways is currently the most popular airline that flies direct to Ko Samui.

  • 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 3h 20m on average. The quickest direct flight to Ko Samui at this time departs from Hong Kong (3h 20m), while the longest leaves from Hong Kong (3h 20m).

  • 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. August 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 Hong Kong. A return direct flight from Hong Kong to Ko Samui typically costs around HK$4,578.

See more FAQs

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