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HK$2,023+ 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 29-1. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
16 Jan — 23 Jan1
1 adult
1 adult, Economy, 0 bags

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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 December 2025.

Tue 27-117:05HKG - USM
Nonstop3h 30mBangkok Airways
Sun 1-211:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-12HK$4,107
Thu 5-317:05HKG - USM
Nonstop3h 30mBangkok Airways
Mon 9-311:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 14-12HK$4,139
Wed 25-217:05HKG - USM
Nonstop3h 30mBangkok Airways
Sat 7-311:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 15-12HK$4,185
Thu 22-117:05HKG - USM
Nonstop3h 30mBangkok Airways
Wed 4-211:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-12HK$4,247
Fri 6-317:05HKG - USM
Nonstop3h 30mMultiple Airlines
Mon 9-311:40USM - HKG
Nonstop3h 15mMultiple Airlines
Deal found 14-12HK$4,341
Wed 20-517:20HKG - USM
Nonstop3h 20mBangkok Airways
Mon 25-511:55USM - HKG
Nonstop3h 25mBangkok Airways
Deal found 15-12HK$4,551
Sat 14-317:05HKG - USM
Nonstop3h 30mCathay Pacific
Sat 21-311:40USM - HKG
Nonstop3h 15mCathay Pacific
Deal found 15-12HK$4,621
Thu 12-317:05HKG - USM
Nonstop3h 30mBangkok Airways
Mon 16-311:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 16-12HK$4,636
Wed 7-117:05HKG - USM
Nonstop3h 30mCathay Pacific
Tue 13-111:40USM - HKG
Nonstop3h 15mCathay Pacific
Deal found 15-12HK$4,652
Wed 25-217:05HKG - USM
Nonstop3h 30mHong Kong Airlines
Sat 7-311:40USM - HKG
Nonstop3h 15mHong Kong Airlines
Deal found 15-12HK$4,699
Fri 6-317:05HKG - USM
Nonstop3h 30mBangkok Airways
Mon 9-311:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 15-12HK$4,823
Thu 29-117:05HKG - USM
Nonstop3h 30mCathay Pacific
Wed 4-211:40USM - HKG
Nonstop3h 15mCathay Pacific
Deal found 15-12HK$4,854

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 December 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

Wed 25-2

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 7-3

11:40-15:55

Nonstop3h 15m

HK$4,076

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 17-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 30-1

11:40-15:55

Nonstop3h 15m

HK$4,115

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 5-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Mon 9-3

11:40-15:55

Nonstop3h 15m

HK$4,139

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 6-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Mon 9-3

11:40-15:55

Nonstop3h 15m

HK$4,341

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 21-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 31-1

11:40-15:55

Nonstop3h 15m

HK$4,387

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 16-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 31-1

11:40-15:55

Nonstop3h 15m

HK$4,387

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 18-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Tue 3-2

11:40-15:55

Nonstop3h 15m

HK$4,411

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 14-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Sat 21-3

11:40-15:55

Nonstop3h 15m

HK$4,621

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 7-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Tue 13-1

11:40-15:55

Nonstop3h 15m

HK$4,652

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 12-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Mon 16-3

11:40-15:55

Nonstop3h 15m

HK$4,652

Flights are sorted by cheapest return flights first.

Deals found on 16-12

Showing 1-10 of 20 results
1
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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 December 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
118 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

6.3

Food

7.3

Comfort

7.9

Boarding

8.0

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

Crew

8.5

Entertainment

6.3

Food

7.3

Comfort

7.9

Boarding

8.0

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
1,095 reviews
Bangkok Airways
8.0
Very Good
118 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

6.3

Food

7.3

Comfort

7.9

Boarding

8.0

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.

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$5,839.

See more FAQs

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