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Cheap flights from Hong Kong to Ko Samui from HK$1,167

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 29-10. Fares are subject to change and may not be available on all flights or dates of travel.
HKG — USM
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Hong Kong Intl to Ko Samui are usually found in September or May, booked 47 days in advance, depart on a Friday or Wednesday and return on a Monday

Cheap 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 16 September 2025.

Round-trip from

HK$2,380

One-way from

HK$1,167

Popular in

July

Cheapest in

September

Average price

HK$3,733

Good round-trip deal

HK$3,497 or less
30-10-6-11
  • 30-10-6-11
  • 2 total stops
  • 17h 35m total
  • Hong Kong to Ko Samui
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29-10
  • 29-10
  • 1 total stop
  • 17h 50m total
  • Hong Kong to Ko Samui
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Highest demand for flights based on searches. 3% potential increase in price (HK$1,193 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (HK$378 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Hong Kong Intl to Ko Samui.
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Find flight deals from Hong Kong to Ko Samui

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 16 September 2025.

Thu 30-1021:15HKG - USM
1 stop10h 55mMultiple Airlines
Thu 6-1107:00USM - HKG
1 stop6h 40mMultiple Airlines
Deal found 15-9HK$2,380
Tue 14-1007:55HKG - USM
1 stop11h 05mMultiple Airlines
Tue 21-1007:00USM - HKG
1 stop6h 25mMultiple Airlines
Deal found 16-9HK$2,427
Fri 21-1116:55HKG - USM
1 stop15h 15mMultiple Airlines
Tue 25-1107:00USM - HKG
1 stop6h 40mMultiple Airlines
Deal found 14-9HK$2,434
Mon 27-1016:55HKG - USM
1 stop15h 15mMultiple Airlines
Wed 29-1007:00USM - HKG
1 stop6h 40mMultiple Airlines
Deal found 16-9HK$2,458
Wed 29-1016:55HKG - USM
1 stop15h 15mMultiple Airlines
Wed 5-1107:00USM - HKG
1 stop6h 40mMultiple Airlines
Deal found 14-9HK$2,466
Mon 6-1016:55HKG - USM
1 stop15h 25mMultiple Airlines
Tue 14-1017:40USM - HKG
1 stop23h 55mMultiple Airlines
Deal found 15-9HK$2,481
Wed 15-1016:55HKG - USM
1 stop15h 25mMultiple Airlines
Wed 22-1008:45USM - HKG
1 stop8h 50mMultiple Airlines
Deal found 14-9HK$2,567
Fri 10-1021:55HKG - USM
1 stop10h 25mMultiple Airlines
Fri 17-1008:55USM - HKG
1 stop13h 25mMultiple Airlines
Deal found 15-9HK$2,606
Mon 13-1007:40HKG - USM
1 stop14h 10mMultiple Airlines
Thu 16-1008:00USM - HKG
1 stop6h 55mMultiple Airlines
Deal found 15-9HK$2,676

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 16 September 2025.
Use the filters below to find and compare flights from Hong Kong to Ko Samui that are best for you.

Fly from

Hong Kong

Fly to

Ko Samui

Route

Departure

Return

Price

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 27-10

16:55-07:10

1 stop15h 15m

Ko Samui

Wed 29-10

07:00-14:40

1 stop6h 40m

HK$2,458

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 30-10

16:55-07:10

1 stop15h 15m

Ko Samui

Thu 6-11

07:00-23:45

1 stop15h 45m

HK$2,504

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 4-11

12:30-18:50

1 stop7h 20m

Ko Samui

Sun 9-11

08:55-17:10

1 stop7h 15m

HK$2,792

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sun 26-10

07:50-16:25

1 stop9h 35m

Ko Samui

Wed 29-10

12:00-15:30

1 stop26h 30m

HK$2,808

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 13-10

18:30-20:25

2 stops26h 55m

Ko Samui

Thu 16-10

08:00-15:55

1 stop6h 55m

HK$2,831

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 6-10

07:50-07:20

2 stops24h 30m

Ko Samui

Tue 14-10

17:40-18:35

1 stop23h 55m

HK$2,854

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Sat 1-11

16:55-08:10

1 stop16h 15m

Ko Samui

Wed 5-11

15:50-14:40

2 stops21h 50m

HK$2,862

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Thu 9-10

14:45-19:45

1 stop6h 00m

Ko Samui

Thu 16-10

08:00-15:55

1 stop6h 55m

HK$2,878

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Mon 17-11

12:30-18:50

1 stop7h 20m

Ko Samui

Tue 25-11

08:55-17:10

1 stop7h 15m

HK$2,940

Hong KongKo Samui

HKG - USM

HKGUSM

Hong Kong Intl

Tue 14-10

08:05-20:30

1 stop13h 25m

Ko Samui

Tue 21-10

10:55-15:15

Nonstop3h 20m

HK$2,963

Flights are sorted by cheapest return flights first.

Deals found on 15-9

Showing 1-10 of 21 results
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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 12 September 2025.

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 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 16 September 2025.

One of the essential ways to save on airfare from Hong Kong to Ko Samui is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at midday could potentially save you up to 65% on airfare.

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 16 September 2025.
See what other customers who have flown with Bangkok Airways and Cathay 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
8.0
Very Good
113 reviews
Check prices

Comfort

7.9

Food

7.2

Entertainment

6.2

Boarding

8.0

Crew

8.5

Overall

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
113 reviews
Bangkok Airways
8.0
Very Good
113 reviews
Check prices

Comfort

7.9

Food

7.2

Entertainment

6.2

Boarding

8.0

Crew

8.5

Overall

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
994 reviews
Bangkok Airways
8.0
Very Good
113 reviews
Check prices

Comfort

7.9

Food

7.2

Entertainment

6.2

Boarding

8.0

Crew

8.5

Overall

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.

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 6 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 2 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 70 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 7h 20m. The distance between Hong Kong and Ko Samui is about 2047 km.

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

    Currently priced at HK$2,774, 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. Check Cheapflights for deals on Cathay Pacific for as low as HK$4,584. Bangkok Airways is priced at 36% 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 (73%), Qatar Airways (73%), KLM (73%).

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

    On average you can expect to pay HK$3,832 for a flight from Hong Kong to Ko Samui. The cheapest flight overall is HK$2,887 while the most popular route, (Hong Kong Intl - Ko Samui) is currently priced at HK$2,380.

  • 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.

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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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 16 September 2025.
Bangkok Airways flights from Hong Kong Intl to Ko Samui
Cathay Pacific flights from Hong Kong Intl to Ko Samui

Top 2 airlines flying from Hong Kong to Ko Samui

Discover the top 2 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapestHK$2,774AverageHK$4,049FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Cathay PacificCheapestHK$4,584AverageHK$5,756FlexibilityNo 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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