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Cheap flights from Hong Kong to Ko Samui from HK$1,411

HKG — USM
10 Dec — 17 Dec1
1 adult
1 adult, Economy, 0 bags

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

Sun 8-1107:25 -
1 stop11h 05m
Sun 15-1118:05 -
1 stop25h 30m
Deal found 7-11HK$3,136
Mon 16-1116:55 -
1 stop15h 15m
Mon 23-1107:55 -
1 stop11h 25m
Deal found 9-11HK$3,144
Wed 2-1221:40 -
1 stop10h 30m
Sat 5-1208:15 -
1 stop6h 15m
Deal found 6-11HK$3,278
Fri 6-1121:00 -
2 stops35h 10m
Fri 13-1111:40 -
Nonstop3h 15m
Deal found 5-11HK$3,325

Find flight deals from Hong Kong to Ko Samui

Round-trip from

HK$3,027

One-way from

HK$1,411

Popular in

December

Cheapest in

November

Average price

HK$4,422

Good round-trip deal

HK$4,994 or less

Good one-way deal

HK$1,843 or less
3-3-9-3
  • 3-3-9-3
  • 2 total stops
  • 17h 05m total
  • Hong Kong to Ko Samui
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17-11-31-12
  • 17-11-31-12
  • 1 total stop
  • 15h 15m total
  • Hong Kong to Ko Samui
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (HK$1,867 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (HK$932 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from Hong Kong to Ko Samui.
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Price to beat on a one-way flight from Hong Kong to Ko Samui.
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Cheapflights Fare Finder

 
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 Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Fri 22-1

14:00-06:55

1 stop17h 55m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,709

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Fri 26-3

20:30-07:10

1 stop11h 40m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,882

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Fri 26-2

23:05-17:10

2 stops19h 05m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$1,976

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Sun 13-12

07:50-19:45

1 stop12h 55m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,039

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Sun 15-11

07:55-20:25

2 stops13h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,054

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Sun 31-1

21:40-12:20

1 stop15h 40m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,101

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Thu 21-1

14:00-20:50

2 stops7h 50m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,321

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Thu 24-12

12:05-20:50

1 stop9h 45m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,376
Fastest return journey

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Fri 26-2

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,517

Hong KongKo Samui

HKG Hong Kong Intl - USM Ko Samui

HKGUSM

Hong Kong Intl

Sun 15-11

17:05-19:35

Nonstop3h 30m

Ko Samui

Wed 31-12

00:00-01:00

Nonstop0h 00m

HK$2,760

Flights are sorted by cheapest return flights first.

Deals found on 6-11

Showing 1-10 of 23 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Hong Kong to Ko Samui

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

Currently, November is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of HK$4,422). Flying from Hong Kong to Ko Samui in December is currently the most expensive (average of HK$6,304). 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 HK to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hong Kong to Ko Samui as you normally would.

How often are flights from Hong Kong to Ko Samui delayed?

About 12% of weekly flights between Hong Kong and Ko Samui have experienced delays in the past year, with the average delay time being 151 minutes.

What is the most punctual flight time for Hong Kong to Ko Samui flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Hong Kong to Ko Samui flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 12% of flights being delayed.

How far ahead should I book a flight from Hong Kong to Ko Samui?

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 84 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

Read reviews from past customers who have flown with Bangkok Airways,泰國航空, andCathay Pacific from Hong Kong to Ko Samui. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.1
Very Good
132 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Overall

8.1

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
132 reviews
Bangkok Airways
8.1
Very Good
132 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Overall

8.1

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
7.9
Good
433 reviews
Bangkok Airways
8.1
Very Good
132 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Overall

8.1

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
1,542 reviews
Bangkok Airways
8.1
Very Good
132 reviews
Check prices

Entertainment

6.3

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Overall

8.1

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

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

    Most people fly into Ko Samui (USM) if they book a flight to Ko Samui from Hong Kong. Ko Samui is conveniently located just 3.3 km from Ko Samui’s city centre.

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

    This flight path from Hong Kong to Ko Samui was viewed by 27 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 30m. 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$3,524, 泰國航空 will fly you from Hong Kong to Ko Samui and back. In addition to 泰國航空, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Bangkok Airways and Cathay Pacific - these airlines can fly you to your destination from HK$3,680 and HK$4,762, respectively. 泰國航空 is priced at 29% 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?

    Before booking your flight to Ko Samui from Hong Kong, have a look at the most reliable airlines to get you to your destination on time: Etihad Airways (95%), Hong Kong Airlines (92%), Qatar Airways( 92%).

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

    The cheapest flight price from Hong Kong to Ko Samui is HK$1,843. On average you can expect to pay HK$3,627. The most popular route, (Hong Kong Intl - Ko Samui), can usually be booked for HK$2,940.

  • 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, November is the cheapest month in which you can book a flight from Hong Kong to Ko Samui (average of HK$4,422). Flying from Hong Kong to Ko Samui in December is currently the most expensive (average of HK$6,304). 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 Pha Ngan
Ko Tao

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Hong Kong to Ko Samui

Hong Kong to Phuket City flights
Hong Kong to Ko Samui flights
Hong Kong to Chiang Mai flights
Hong Kong to Krabi flights

Top 3 airlines flying from Hong Kong to Ko Samui

AirlineCheapestAverageFlexibilityOn-time
泰國航空CheapestHK$3,524AverageHK$4,210FlexibilityNo cancel feeOn-time77%
Search 泰國航空 flights
Bangkok AirwaysCheapestHK$3,680AverageHK$4,996FlexibilityNo cancel feeOn-time74%
Search Bangkok Airways flights
Cathay PacificCheapestHK$4,762AverageHK$6,113FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Hong Kong to Ko Samui flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Hong Kong to Ko Samui for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Ko Samui from Hong Kong? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Hong Kong to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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