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Cheap flights from Hong Kong to Ko Samui from HK$1,259

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 20-4. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Hong Kong Intl to Ko Samui are usually found in September or November, booked 17 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap flight deals from Hong Kong to Ko Samui

Enter your travel dates to find the best prices.

Cheapest flights from Hong Kong to Ko Samui
Explore the most affordable flight options available from Hong Kong to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 March 2026.

Sun 17-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Wed 20-508:00
USM
-
HKG
1 stop7h 00m
Multiple Airlines
Deal found 6-3HK$2,509
Tue 22-916:55
HKG
-
USM
1 stop15h 15m
Multiple Airlines
Fri 9-1007:50
USM
-
HKG
1 stop19h 40m
Multiple Airlines
Deal found 6-3HK$2,525
Fri 8-521:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Wed 13-508:00
USM
-
HKG
1 stop7h 00m
Multiple Airlines
Deal found 6-3HK$2,533
Mon 7-907:55
HKG
-
USM
1 stop7h 00m
Multiple Airlines
Thu 10-906:00
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 9-3HK$2,572
Mon 18-514:20
HKG
-
USM
1 stop6h 25m
Multiple Airlines
Tue 26-521:00
USM
-
HKG
1 stop6h 30m
Multiple Airlines
Deal found 10-3HK$2,619
Tue 21-421:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Tue 28-406:00
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 6-3HK$2,626
Thu 23-421:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Thu 30-409:15
USM
-
HKG
1 stop18h 00m
Multiple Airlines
Deal found 9-3HK$2,634
Wed 22-421:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Wed 29-406:55
USM
-
HKG
1 stop11h 20m
Multiple Airlines
Deal found 8-3HK$2,650
Mon 20-421:30
HKG
-
USM
1 stop10h 40m
Multiple Airlines
Mon 27-406:00
USM
-
HKG
1 stop7h 20m
Multiple Airlines
Deal found 6-3HK$2,705

Find flight deals from Hong Kong to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Hong Kong (HKG) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 March 2026.

Round-trip from

HK$2,509

One-way from

HK$1,259

Popular in

February

Cheapest in

September

Average price

HK$4,479

Good round-trip deal

HK$4,016 or less
17-5-20-5
  • 17-5-20-5
  • 2 total stops
  • 17h 40m total
  • Hong Kong to Ko Samui
Search Deals
20-4
  • 20-4
  • 1 total stop
  • 10h 40m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (HK$3,598 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$1,256 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hong Kong to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 10 March 2026.
Use the filters below to find and compare flights from Hong Kong to Ko Samui that are best for you.

Fly from

Fly to

Route

Departure

Return

Price

Cheapest return flight

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 19-4

14:55-18:50

2 stops28h 55m

Ko Samui

Sun 26-4

08:00-16:00

1 stop7h 00m

HK$3,533

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

21:10-11:40

1 stop15h 30m

Ko Samui

Wed 20-5

19:10-18:05

1 stop21h 55m

HK$3,948
Fastest return journey

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 18-8

17:20-19:40

Nonstop3h 20m

Ko Samui

Tue 25-8

11:55-16:20

Nonstop3h 25m

HK$4,010

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 7-6

21:30-11:40

1 stop15h 10m

Ko Samui

Thu 11-6

08:45-18:15

1 stop8h 30m

HK$4,018

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 12-8

17:20-19:40

Nonstop3h 20m

Ko Samui

Fri 21-8

11:55-16:20

Nonstop3h 25m

HK$4,753

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 17-8

17:20-19:40

Nonstop3h 20m

Ko Samui

Tue 25-8

11:55-16:20

Nonstop3h 25m

HK$4,839

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 19-5

18:45-14:45

2 stops21h 00m

Ko Samui

Wed 20-5

18:25-13:30

2 stops18h 05m

HK$4,917

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Fri 20-3

17:05-19:35

Nonstop3h 30m

Ko Samui

Tue 24-3

11:40-15:55

Nonstop3h 15m

HK$4,925

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Wed 20-5

17:20-19:40

Nonstop3h 20m

Ko Samui

Fri 22-5

11:55-16:20

Nonstop3h 25m

HK$5,026

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 7-6

18:45-13:45

2 stops20h 00m

Ko Samui

Thu 11-6

18:55-13:30

2 stops17h 35m

HK$5,065

Flights are sorted by cheapest return flights first.

Deals found on 5-3

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Hong Kong to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Hong Kong 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 from Hong Kong to Ko Samui

How far ahead should I book a flight from Hong Kong 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 6 March 2026.

The price you pay for your flight from Hong Kong to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, June is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of HK$2,236). Flying from Hong Kong to Ko Samui in March is currently the most expensive (average of HK$3,948). 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 HKG to USM?

Find hourly flight availability from Hong Kong to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 March 2026.

When flying from Hong Kong to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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 10 March 2026.
See what other customers who have flown with Bangkok Airways,泰國航空, andCathay Pacific from Hong Kong to Ko Samui have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.1
Very Good
125 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

6.3

Overall

8.1

Food

7.3

Crew

8.6

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
125 reviews
Bangkok Airways
8.1
Very Good
125 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

6.3

Overall

8.1

Food

7.3

Crew

8.6

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
泰國航空
7.8
Good
391 reviews
Bangkok Airways
8.1
Very Good
125 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

6.3

Overall

8.1

Food

7.3

Crew

8.6

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
Cathay Pacific
7.6
Good
1,202 reviews
Bangkok Airways
8.1
Very Good
125 reviews
Check prices

Boarding

8.1

Comfort

8.0

Entertainment

6.3

Overall

8.1

Food

7.3

Crew

8.6

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

Find useful and relevant information for your journey from Hong Kong to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Hong Kong to Ko Samui?

    Booking a flight from Hong Kong Intl (HKG) to Ko Samui (USM) is your only option if you wish to fly from Hong Kong to Ko Samui. On a typical day, there are 8 flights from Hong Kong Intl to Ko Samui, all of which are around 3h 20m for a nonstop flight. You can also purchase a plane ticket from 3 airlines when you book a flight from Hong Kong Intl to Ko Samui.

  • How popular is this Hong Kong to Ko Samui flight route?

    This flight path from Hong Kong Intl to Ko Samui was viewed by 50 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Hong Kong to Ko Samui?

    Departing from Hong Kong to Ko Samui will take you 3h 20m. The distance between Hong Kong and Ko Samui is about 2047 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Hong Kong to Ko Samui round-trip?

    Currently priced at HK$2,621, Bangkok Airways will fly you from Hong Kong to Ko Samui and back. In addition to Bangkok Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from 泰國航空 and Cathay Pacific - these airlines can fly you to your destination from HK$4,173 and HK$4,607, respectively. Bangkok Airways is priced at 40% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Hong Kong to Ko Samui?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Hong Kong to Ko Samui on time: Hong Kong Airlines (92%), Qatar Airways (92%), KLM (92%).

  • What are the cheapest flights from Hong Kong to Ko Samui?

    On average you can expect to pay HK$4,470 for a flight from Hong Kong to Ko Samui. The cheapest flight overall is HK$3,473 while the most popular route, (Hong Kong Intl - Ko Samui) is currently priced at HK$2,626.

  • Can I find deals for flights from Hong Kong to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Hong Kong to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hong Kong to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hong Kong to Ko Samui.

  • Can I find deals for business class flights from Hong Kong to Ko Samui?

    Yes. Cheapflights offers flight deals from Hong Kong 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 Hong Kong to Ko Samui?

    Currently, June is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of HK$2,236). Flying from Hong Kong to Ko Samui in March is currently the most expensive (average of HK$3,948). 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 Tao
Ko Pha Ngan

Browse thousands of different options on Cheapflights for your next trip

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Fly from Hong Kong to Ko Samui on these airlines

Choose from the following airlines for your flight from Hong Kong to Ko Samui. Flights are based on user searches made on Cheapflights and were last updated on 10 March 2026.
Bangkok Airways flights from Hong Kong Intl to Ko Samui
Cathay Pacific flights from Hong Kong Intl to Ko Samui
泰國航空 flights from Hong Kong Intl to Ko Samui

Top 3 airlines flying from Hong Kong to Ko Samui

Discover the top 3 airlines that operate flights from Hong Kong to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 70,647 searches. Data last updated 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapestHK$2,621AverageHK$3,988FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
泰國航空CheapestHK$4,173AverageHK$4,355FlexibilityNo cancel feeOn-time77%
Search 泰國航空 flights
Cathay PacificCheapestHK$4,607AverageHK$5,867FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Hong Kong to Ko Samui?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hong Kong to Ko Samui. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hong Kong to Ko Samui?

Cheapflights helps you find that perfect flight to Ko Samui from Hong Kong by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Hong Kong to Ko Samui with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Hong Kong to Ko Samui flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Hong Kong to Ko Samui become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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