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HK$1,308+ Cheap flights to Ko Samui

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 11-5. Fares are subject to change and may not be available on all flights or dates of travel.
— USM
31 Jan — 7 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Ko Samui in 2026

Enter your travel dates to find the best prices.

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 1 January 2026.

Tue 30-1223:00HKG - USM
1 stop9h 10mMultiple Airlines
Sat 3-121:30USM - HKG
1 stop16h 10mMultiple Airlines
Deal found 29-12HK$4,989
Tue 30-1217:05HKG - USM
Nonstop3h 30mBangkok Airways
Sat 3-111:40USM - HKG
Nonstop3h 15mBangkok Airways
Deal found 29-12HK$10,997

Find flight deals to Ko Samui

Find the latest flights to Ko Samui in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 1 January 2026.

Return from

HK$4,164

One-way from

HK$1,308

Popular in

July

Cheapest in

September

Average price

HK$4,662

Good round-trip deal

HK$4,826 or less
Bangkok Airways
  • Bangkok Airways
  • 29-1-5-2
  • 1 total stop
  • 19h 50m total
  • Hong Kong to Ko Samui
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11-5
  • 11-5
  • 1 total stop
  • 15h 15m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (HK$177 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (HK$64 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
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Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.
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Cheapflights Fare Finder

 
Locate flights to Ko Samui that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 1 January 2026.
Use the filters below to find and compare 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

Thu 12-3

16:25-08:00

1 stop16h 35m

Ko Samui

Mon 16-3

11:40-15:55

Nonstop3h 15m

HK$4,234

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 14-3

14:30-20:25

1 stop6h 55m

Ko Samui

Sat 21-3

11:40-15:55

Nonstop3h 15m

HK$4,250

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 15-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Thu 19-3

11:40-15:55

Nonstop3h 15m

HK$4,288

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 13-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Tue 17-3

11:40-15:55

Nonstop3h 15m

HK$4,397

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 6-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Fri 13-3

11:40-15:55

Nonstop3h 15m

HK$4,397

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 30-1

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 4-2

11:40-15:55

Nonstop3h 15m

HK$4,397

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 13-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Mon 16-3

09:00-17:00

1 stop7h 00m

HK$4,405

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 25-2

07:25-17:30

1 stop11h 05m

Ko Samui

Sat 7-3

11:40-15:55

Nonstop3h 15m

HK$4,436

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 4-2

13:30-20:25

1 stop7h 55m

Ko Samui

Sat 7-2

11:40-15:55

Nonstop3h 15m

HK$4,460

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 5-2

17:05-19:35

Nonstop3h 30m

Ko Samui

Thu 12-2

11:40-15:55

Nonstop3h 15m

HK$4,483

Flights are sorted by cheapest return flights first.

Deals found on 31-12

Showing 1-10 of 20 results
1
2

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 Insights

Everything you need to know about your flight to Ko Samui

When is the best time to book a flight to Ko Samui?

Use this chart to determine the optimal time to book a return flight from Hong Kong to Ko Samui. Price data was last updated on 26 December 2025.

The price you pay for your flight to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 1 January 2026.
See what other customers who have flown with Bangkok Airways, 泰國航空, andCathay 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

Comfort

7.9

Crew

8.5

Entertainment

6.3

Overall

8.0

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

Comfort

7.9

Crew

8.5

Entertainment

6.3

Overall

8.0

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.
泰國航空
7.8
Good
371 reviews
Bangkok Airways
8.0
Very Good
118 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

6.3

Overall

8.0

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.
Cathay Pacific
7.6
Good
1,113 reviews
Bangkok Airways
8.0
Very Good
118 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

6.3

Overall

8.0

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.

FAQs about flying to Ko Samui

  • What airport do you fly into for flights to Ko Samui?

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre. On average, Ko Samui has 8 flights from Hong Kong per day from 3 airlines.

  • Can I find cheaper flights to Ko Samui if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ko Samui on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Ko Samui?

    Based on reviews from Cheapflights users, Bangkok Airways is rated the highest out of the airlines that fly to Ko Samui.

  • What is the cheapest airport to fly to in Ko Samui?

    Ko Samui is currently the cheapest airport to fly to in Ko Samui. One-way flights to Ko Samui typically cost HK$709, while return flights cost around HK$3,813.

  • How much is a return flight to Ko Samui?

    A return flight to Ko Samui will typically cost around HK$5,959, however they can be found for as little as HK$3,813.

  • Does Ko Samui have rental cars?

    Yes. Those touching down at Ko Samui can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Ko Samui?

    Yes. Ko Samui has hotels nearby for those requiring accommodations. Diamond Pool Villa Samui is the closest property to Ko Samui (0.0 km away from Ko Samui).

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 Tao
Ko Pha Ngan

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How does Cheapflights help users find flights to Ko Samui?

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Yes, we can. To see specific flights to Ko Samui with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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